CN218975984U - Power supply adapter plate for server - Google Patents

Abstract

The utility model discloses a power supply adapter plate for a server, which converts a first power supply voltage into a second power supply voltage through a voltage conversion circuit, outputs the second power supply voltage through a first output end and a second output end when the server works in a full power state, and simultaneously supplies power to a first power receiving component connected with the first output end and a second power receiving component connected with the second output end when the server works in the full power state. The voltage conversion circuit outputs a second power supply voltage through the second output end when the server works in a standby state, controls the first output end to be free of output, and supplies power to the second power receiving component connected with the second output end when the server works in the standby state, so that power required by the server when the server works in the standby state is also obtained by converting the first power supply voltage output by the power supply module, and further, the power supply requirement of the server in the standby state can be met through main power corresponding to the first power supply voltage output by the power supply module, and the situation that power supply is insufficient and power is lost is avoided.

Description

Power supply adapter plate for server

Technical Field

The embodiment of the utility model relates to the technical field of server power supply, in particular to a power supply adapter plate for a server.

Background

As server configuration requirements become higher, server power consumption increases significantly, and supply current increases significantly, so that power output loss increases.

Currently, the mainstream server system is still 12V dc power. To reduce losses, the 54V supply dc supply scheme is also increasingly being applied to the server market. The output of the existing 54V standard universal redundant power supply (Common Redundant Power Supplies, CRPS) product is divided into a 54V output and a 12V standby output. The working states of the server comprise a full power state and a standby state, 54V CRPS is applied to the server system, and 12V standby output provides electricity in the standby state of the system.

However, today there is a high demand for server system standby status, and the 12V standby output of the existing 54V CRPS product cannot meet the power supply demand.

Disclosure of Invention

The utility model provides a power supply adapter plate for a server, which is used for providing power supply for the server in a standby state through main power of a connected power supply module and avoiding the condition of insufficient power supply.

The embodiment of the utility model provides a power supply adapter plate for a server, which comprises the following components: a first connector, a second connector, and a voltage conversion circuit electrically connected to the first connector and the second connector, respectively; the first connector is used for connecting a power module for providing a first power voltage; the voltage conversion circuit is used for converting the first power supply voltage into the second power supply voltage and transmitting the second power supply voltage to the second connector; the first power supply voltage is greater than the second power supply voltage; the second connector comprises a first output end and a second output end, and is used for being connected with a first power receiving component of the server main board through the first output end and a second power receiving component of the main board through the second output end; the voltage conversion circuit is also used for outputting a second power supply voltage through the first output end and the second output end when the server works in a full power state, outputting the second power supply voltage through the second output end when the server works in a standby state, and controlling the first output end to be free of output. Therefore, the power supply transmission loss is favorably saved, the power cost is saved, the traditional second power supply voltage power supply server system can be compatible, the power supply requirement of the server in the standby state can be met through the main power corresponding to the first power supply voltage output by the power supply module, the power supply requirement of the server in the standby state can be met, and the situation that the power supply is insufficient and power is lost is avoided.

Optionally, the voltage conversion circuit includes a voltage conversion module, a first protection module and a second protection module; the input end of the voltage conversion module is electrically connected with the first connector, the output end of the voltage conversion module is respectively electrically connected with the input end of the first protection module and the input end of the second protection module, and the voltage conversion module is used for converting the first power supply voltage into the second power supply voltage; the output end of the first protection module is electrically connected with the first output end, and the first protection module is used for controlling the connection between the voltage conversion module and the first output end when the server works in a full power state and controlling the disconnection between the voltage conversion module and the first output end when the server works in a standby state; the output end of the second protection module is electrically connected with the second output end, and the second protection module is used for controlling the conduction between the voltage conversion module and the second output end when the server works in a full-power state and a standby state. The arrangement of the first protection module and the second protection module can realize the control of the conduction state between the voltage conversion module and the second connector, can realize the isolation effect between the voltage conversion module and the main board, ensures that the voltage conversion module is disconnected in time when a single server breaks down, does not influence the operation of other servers, can carry out hot plug on the fault, and has higher reliability and convenient maintenance for the whole server cluster.

Optionally, the voltage conversion module includes two conversion units, one of which is connected with the output end of the power module and the input end of the first protection module, and the other of which is connected with the output end of the power module and the input end of the second protection module, and the conversion unit is used for converting the first power voltage into the second power voltage; thus, the output power requirement of the conversion unit 1311 is lower, and correspondingly, the power supply reliability is higher;

or the voltage conversion module comprises a conversion unit, wherein the input end of the conversion unit is used as the input end of the voltage conversion module, and the output end of the conversion unit is used as the output end of the voltage conversion module; in this way, the circuit structure in the power adapter board 100 may be relatively fewer, so that the component arrangement space of the power adapter board 100 is larger, and the wiring is easier to implement.

Optionally, the conversion unit comprises a DCDC integrated chip or a discrete voltage conversion circuit.

Optionally, the first protection module and/or the second protection module includes an MP5991 chip and its peripheral circuitry, or an ADM1278-1 chip and its peripheral circuitry.

Optionally, the power adapter board for the server further includes a fault control module, where the fault control module is electrically connected to at least some internal nodes in the voltage conversion circuit, and the fault control module is further electrically connected to the motherboard, and the fault control module is configured to send a fault signal to the motherboard when a voltage of any internal node is less than a corresponding set voltage, so that the motherboard controls the first protection module to turn off between an output end of the voltage conversion circuit and the second connector; thus, when the main board receives the fault signal, the control server works in a standby state so as to protect the server; the method and the system ensure that when a single server fails, the single server is disconnected in time, the operation of other servers is not affected, the fault can be hot plugged, and the whole server cluster is higher in reliability and convenient to maintain.

Optionally, the fault control module includes a plurality of indication units and a logic control unit, wherein an input end of each indication unit is connected with an internal node, an output end of each indication unit is electrically connected with an input end of the logic control unit, and the indication unit is used for sending out an indication signal when a voltage of the connected internal node is greater than or equal to a set voltage; the output end of the logic control unit is in communication connection with the main board, and the logic control unit is used for controlling the output of the fault signal according to the voltage of the output end of the indication unit; therefore, whether the working state of the voltage conversion circuit of the working personnel is abnormal or not can be prompted, and when the main board receives a fault signal, the server is controlled to work in a standby state so as to protect the server; the method and the system ensure that when a single server fails, the single server is disconnected in time, the operation of other servers is not affected, the fault can be hot plugged, and the whole server cluster is higher in reliability and convenient to maintain.

Optionally, the second power receiving component includes a programmable logic device, and the programmable logic chip is configured to send a control signal to the first protection module according to the fault signal, so that the first protection module controls the disconnection between the voltage conversion module and the first output end.

Optionally, the first connector is matched with an interface of the power module, and the second connector is matched with a motherboard interface.

Optionally, the power module is a universal redundant power supply.

The power supply adapter board for the server disclosed by the embodiment of the utility model is connected with the first power supply voltage through the first connector by the voltage conversion circuit, converts the first power supply voltage into the second power supply voltage, outputs the second power supply voltage through the first output end and the second output end when the server works in a full power state, and further simultaneously supplies power to the first power receiving component connected with the first output end and the second power receiving component connected with the second output end when the server works in the full power state. The voltage conversion circuit outputs a second power supply voltage through the second output end when the server works in a standby state, controls the first output end to be free of output, further supplies power to the second power receiving component connected with the second output end when the server works in the standby state, and does not supply power to the first power receiving component when the server works in the standby state, so that power required by the server when the server works in the standby state is also obtained by converting the first power supply voltage output by the power supply module, further, the power supply requirement of the server in the standby state can be met through main power corresponding to the first power supply voltage output by the power supply module, the power supply requirement of the server in the standby state can be met, and the situation that power supply is insufficient and power is lost is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a power adapter board for a server according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a second connector according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of another power adapter board for a server according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of another power adapter board for a server according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of another power adapter board for a server according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a conversion unit according to an embodiment of the present utility model;

fig. 7 is a schematic structural diagram of another conversion unit according to an embodiment of the present utility model;

FIG. 8 is an equivalent circuit diagram of a discrete voltage conversion circuit according to an embodiment of the present utility model in a first stage;

FIG. 9 is an equivalent circuit diagram of a discrete voltage conversion circuit in a second stage according to an embodiment of the present utility model;

fig. 10 is a schematic structural diagram of a first protection module or a second protection module according to an embodiment of the present utility model;

FIG. 11 is a schematic structural diagram of another first protection module or a second protection module according to an embodiment of the present utility model;

Fig. 12 is a schematic structural diagram of another power adapter board for a server according to an embodiment of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

As described in the background art, the requirements for the standby state of the server system are high nowadays, and the 12V standby output of the existing 54V CRPS product cannot meet the power supply requirements. The inventor researches and discovers that the reason for the problem is that, on one hand, in the traditional server system, only the baseboard management controller (Baseboard Management Controller, BMC) needs to be kept in a standby state, and interfaces such as USB and the like keep in a wakeable state, so that the electric quantity requirement is small. In the server system of today, power needs to be supplied to an overcurrent protection (Over Current Protection, OCP) card, a fan, and the like in a standby state, and the power supply demand is increased. On the other hand, the standard 54V CRPS power supply product generally only needs to achieve 2-3A of current for standby output of 12V, because the space size of the standard CRPS power supply product is fixed, if the 12V standby output current is very large, the space of the 54V output part is occupied, and the power of main electricity is reduced. If the current of the 12V standby output needs to be improved, the special-shaped power supply can be customized to meet the power requirement of the standby state, but the cost performance is not high, and the special-shaped power supply is not compatible with a general server architecture in size. In addition, the 12V standby output of the standard CRPS power supply product does not have a current sharing function, and even if one main board is connected with a plurality of CPRS in parallel, the parallel superimposed current cannot be achieved.

For the above reasons, the embodiment of the present utility model provides a power adapter board for a server, and fig. 1 is a schematic structural diagram of the power adapter board for a server according to the embodiment of the present utility model, and referring to fig. 1, the power adapter board 100 for a server includes: a first connector 110, a second connector 120, and a voltage conversion circuit 130 electrically connected to the first connector 110 and the second connector 120, respectively;

the first connector 110 is used for connecting a power module for providing a first power voltage; the voltage conversion circuit 130 is configured to convert the first power voltage into a second power voltage, and transmit the second power voltage to the second connector 120; the first power supply voltage is greater than the second power supply voltage; the second connector 120 includes a first output terminal and a second output terminal, and the second connector 120 is used for connecting the first power receiving component 310 of the server motherboard 300 through the first output terminal, and is used for connecting the second power receiving component 320 of the motherboard 300 through the second output terminal;

the voltage conversion circuit 130 is further configured to output the second power voltage through the first output terminal OUT1 and the second output terminal OUT2 when the server is in the full power state, and output the second power voltage through the second output terminal OUT2 when the server is in the standby state, and control the first output terminal OUT1 to have no output.

Wherein the power supply module may be a 54V standard CRPS, and correspondingly, the first power supply voltage may be equal to 54V, which corresponds to the main power voltage of the 54V standard CRPS. The second supply voltage may be equal to 12V and the second supply voltage may be equal to the voltage of the 12V standby output of the 54V standard CRPS. The power module is connected with the input end of the voltage conversion circuit 130 through the first connector 110, the first connector 110 is matched with the interface of the power module, the first connector 110 can be a golden finger connector or a cable connector, the first connector 110 can also comprise two structures of the golden finger connector and the cable connector, and further CRPS with different interfaces can be matched conveniently. The second connector 120 is matched with the interface of the motherboard 300, and the second connector 120 may be a golden finger connector, so that the power adapter board may be directly inserted into the motherboard 300 through the second connector 120. Fig. 2 is a schematic structural diagram of a second connector according to an embodiment of the present utility model, where the definition of each port in the second connector 120 may be the same as the definition of each port of the second connector when the power module is used to supply power to the motherboard 300 (the structure that does not supply power through the power adapter board), so that the second connector is completely compatible when connected to the motherboard, and no modification is required to the motherboard.

The voltage conversion circuit 130 has a voltage conversion function, the power conversion circuit is configured to convert a first power voltage into a second power voltage, an output end of the voltage conversion module is connected to the second connector 120, the second connector 120 is connected to the motherboard 300, and then the voltage conversion circuit 130 converts the first power voltage into the second power voltage, and then the second power voltage is output to the motherboard 300 through the second connector 120 to supply power to the motherboard 300. The second connector 120 includes a first output terminal OUT1 and a second output terminal OUT2, the first output terminal OUT1 is connected to the first power receiving member 310 of the main board 300, and the second output terminal OUT2 is connected to the second power receiving member 320 of the main board 300. The power adapter board 100 for a server of this embodiment converts the first power voltage output by the power module into the second power voltage through the voltage conversion module to supply power to the server motherboard 300, where the first power voltage is greater than the second power voltage, and the first power voltage corresponds to the main power of the power module, which is beneficial to saving power transmission loss and saving power cost compared with a power supply mode that directly supplies power to the motherboard 300 through the second power voltage (which may correspond to the standby output of the power module). And the server system can be compatible with the traditional second power supply voltage, and the server system can be directly powered by arranging the first connector 110 matched with the power supply module interface and the second connector 120 matched with the server main board 300 interface.

In this embodiment, the voltage conversion circuit 130 is configured to output the second power supply voltage through the first output terminal OUT1 and the second output terminal OUT2 when the server is in the full power state, so as to simultaneously supply power to the first power receiving component 310 connected to the first output terminal OUT1 and the second power receiving component 320 connected to the second output terminal OUT2 when the server is in the full power state. The voltage conversion circuit 130 is further configured to output a second power supply voltage through the second output terminal OUT2 when the server is in a standby state, and control the first output terminal OUT1 to have no output, so as to supply power to the second power receiving component 320 connected to the second output terminal OUT2 when the server is in the standby state, and not supply power to the first power receiving component 310 when the server is in the standby state, so that the server is guaranteed to be disconnected in time when a single server fails, the operation of other servers is not affected, the failure can be hot plugged, and the overall server cluster reliability is higher and is convenient to maintain. The first power receiving component 310 is a component that needs to operate in a full power state and does not need to operate in a standby state, and the first power receiving component 310 includes an on-board component that needs to operate in a full power state and does not need to operate in a standby state; the second power receiving component 320 is a component that needs to operate in both a full power state and a standby state, and illustratively, the second power receiving component 320 includes a programmable logic device (Complex Programmable Logic Device, CPLD), and may further include an on-board conversion circuit on the motherboard 300, where the on-board conversion circuit is configured to convert the second power supply voltage to a power supply voltage acceptable by the CPLD, and illustratively, the second power supply voltage is 12V, and the power supply voltage acceptable by the CPLD is 3.3V.

The power supply adapter board for the server of the embodiment is connected with a first power supply voltage through a first connector by the voltage conversion circuit, converts the first power supply voltage into a second power supply voltage, outputs the second power supply voltage through a first output end and a second output end when the server works in a full power state, and further simultaneously supplies power to a first power receiving component connected with the first output end and a second power receiving component connected with the second output end when the server works in the full power state. The voltage conversion circuit outputs a second power supply voltage through the second output end when the server works in a standby state, controls the first output end to be free of output, further supplies power to the second power receiving component connected with the second output end when the server works in the standby state, and does not supply power to the first power receiving component when the server works in the standby state, so that power required by the server when the server works in the standby state is also obtained by converting the first power supply voltage output by the power supply module, further, the power supply requirement of the server in the standby state can be met through main power corresponding to the first power supply voltage output by the power supply module, the power supply requirement of the server in the standby state can be met, and the situation that power supply is insufficient and power is lost is avoided.

Fig. 3 is a schematic structural diagram of another power adapter board for a server according to an embodiment of the present utility model, and referring to fig. 3, an optional voltage conversion circuit 130 includes a voltage conversion module 131, a first protection module 132, and a second protection module 133; the input end of the voltage conversion module is electrically connected with the first connector 110, the output end of the voltage conversion module 131 is electrically connected with the input end of the first protection module 132 and the input end of the second protection module 133 respectively, and the voltage conversion module 131 is used for converting the first power supply voltage into the second power supply voltage;

the output end of the first protection module 132 is electrically connected to the first output end OUT1, and the first protection module 132 is used for controlling the voltage conversion module 131 to be conducted with the first output end OUT1 when the server works in a full power state, and controlling the voltage conversion module 131 to be disconnected with the first output end OUT1 when the server works in a standby state;

the output end of the second protection module 133 is electrically connected to the second output end OUT2, and the second protection module 133 is used for controlling the conduction between the voltage conversion module 131 and the second output end OUT2 when the server works in the full power state and the standby state.

Specifically, the voltage conversion module 131 is used to convert the first power voltage into the second power voltage, and the implementation manner of the voltage conversion module 131 may be any circuit capable of implementing the voltage conversion in the prior art. The second power voltage is input to the first protection module 132 and the second protection module 133, respectively.

The first protection module 132 may control a conductive state between the voltage conversion module 131 and the first output terminal OUT1 of the second connector 120. Specifically, the first protection module 132 may communicate with the motherboard 300 of the server, where the first protection module 132 controls the voltage conversion module 131 to be conducted with the first output terminal OUT1 when the server works in a full power state, so as to supply power to the first power receiving component 310, so that the first power receiving component 310 obtains power to work normally when the server works in the full power state; the first protection module 132 controls the voltage conversion module 131 to be turned off from the first output terminal OUT1 when the server is in the standby state, so that the first power receiving component 310 is not powered and does not operate in the standby state, thereby saving power consumption. The second protection module 133 may control a conductive state between the voltage conversion module 131 and the second output terminal OUT2 of the second connector 120. Specifically, the second protection module 133 may conduct between the voltage conversion module 131 and the second output terminal OUT2 of the second connector 120 according to the voltage input by the voltage conversion module 131, that is, when the second protection module 133 has the second power supply voltage output by the voltage conversion module 131 at its input terminal, that is, controls the voltage conversion module 131 to conduct with the second output terminal OUT2 of the second connector 120, that is, whether the server is in a full power state or a standby state, the second protection module 133 controls the voltage conversion module 131 to conduct with the second output terminal OUT2 of the second connector 120, so that the second power receiving component 320 of the motherboard 300 is powered when the server is in the full power state or the standby state, and further ensures that the second power receiving component 320 can normally operate in the full power state or the standby state. Therefore, the first protection module 132 and the second protection module 133 can control the conducting state between the voltage conversion module 131 and the second connector 120, can realize the isolation between the voltage conversion module 131 and the motherboard 300, ensure that the single server is disconnected in time when the single server fails, do not affect the operation of other servers, can perform hot plug on the failure, and has higher reliability and convenient maintenance for the whole server cluster.

Fig. 4 is a schematic structural diagram of another power adapter board for a server according to an embodiment of the present utility model, referring to fig. 4, in an alternative embodiment of the present utility model, a voltage conversion module 131 includes two conversion units 1311 (a first conversion unit 1312 and a second conversion unit 1313, respectively), wherein the first conversion unit 1312 is connected to an output end of the power module and an input end of the first protection module 132, respectively, and the second conversion unit 1313 is connected to an output end of the power module and an input end of the second protection module 133, respectively, and the conversion unit 1311 is configured to convert a first power voltage into a second power voltage.

Specifically, the circuit structures of the two conversion units 1311 of the voltage conversion module 131 may be the same, and the conversion unit 1311 converts the input first power supply voltage into the second power supply voltage. The first protection module 132 and the second protection module 133 are respectively connected with one conversion unit 1311, so that the output power requirement of the conversion unit 1311 is lower, and correspondingly, the power supply reliability is higher.

Fig. 5 is a schematic structural diagram of another power adapter board for a server according to an embodiment of the present utility model, referring to fig. 5, in another alternative embodiment of the present utility model, the voltage conversion module 131 includes a conversion unit 1311, an input terminal of the conversion unit 1311 is an input terminal of the voltage conversion module 131, and an output terminal of the conversion unit 1311 is an output terminal of the voltage conversion module 131.

Specifically, in this embodiment, the voltage conversion module 131 includes a conversion unit 1311, and the first protection module 132 and the second protection module 133 are connected to the conversion unit 1311, so that the circuit structure in the power adapter board 100 can be relatively less, so that the arrangement space of the components of the power adapter board 100 is larger, and the wiring is easier to implement.

Based on the above technical solution, the conversion unit 1311 may include a DCDC integrated chip or a discrete voltage conversion circuit.

Fig. 6 is a schematic structural diagram of a conversion unit according to an embodiment of the present utility model, where fig. 6 shows a structure in which the conversion unit is a DCDC integrated chip, and Input of the DCDC integrated chip is a first power supply voltage, and Input of the DCDC integrated chip is a second power supply voltage. Alternatively, the model of the DCDC integrated chip may be Q50SN12072NNDH or DCM3717S60E14G5TN0. The conversion unit is set to be a DCDC integrated chip, so that the conversion unit is small in size, high in power density, few in peripheral devices and relatively simplified in overall structure. And an MCU can be further arranged on the power supply adapter plate and can be used for collecting parameters such as voltage, current and the like of an internal circuit of the DCDC integrated chip.

Fig. 7 is a schematic structural diagram of another converting unit provided in an embodiment of the present utility model, where the converting unit shown in fig. 7 is a structure of a discrete voltage converting circuit, and referring to fig. 7, the discrete voltage converting circuit includes a driving controller 1301, a buck controller 1302 and a plurality of groups of drivers, and a plurality of switching tubes (fig. 7 schematically shows that the converting unit 1311 includes twelve switching tubes, which are respectively a first switching tube Q1, a second switching tube Q2, a third switching tube Q3, a fourth switching tube Q4, a fifth switching tube Q5, a sixth switching tube Q6, a seventh switching tube Q7, an eighth switching tube Q8, a ninth switching tube Q9, a tenth switching tube Q10, an eleventh switching tube Q11 and a twelfth switching tube Q12), where the driving controller 1301 is respectively connected with the buck controller 1302, the drivers, and sends corresponding control signals to the buck controller 1302 and the drivers, and the driving controller 1301 can send enable signals to the buck controller 1302 to control the buck controller 1302 to turn on and off the buck controller 1302, and the buck controller can implement the buck controller through the eleventh switching tube Q11 and the twelfth switching tube Q12; the driving controller 1301 may also send a driving control signal to the driver to control the on-off of the switching tube correspondingly connected to realize voltage conversion. The conversion unit further comprises a first capacitor C1, a second capacitor C2, a third capacitor C3 and an output capacitor COUT, and further comprises an input inductor LIN, a first inductor L1 and a second inductor L2, wherein the input inductor LIN, the first inductor L1 and the second inductor L2 play roles in filtering and storing and releasing energy.

Taking the input voltage VIN at the voltage input terminal of the conversion unit 1311 as 54V and the output voltage VOUT at the voltage output terminal of the conversion unit 1311 as 12V for illustration, the conversion unit 1311 may include four DRIVERs, namely, a first DRIVER1, a second DRIVER2, a third DRIVER3, a fourth DRIVER4, and 12 switching transistors shown in fig. 7. After receiving the enable signal EN of the driving controller 1301, the step-down controller 1302 controls the switching states of the eleventh switching transistor Q11 and the twelfth switching transistor Q12 to convert the 54V voltage into the 48V voltage. The driving controller 1301 supplies the first driving control signal S1A, the second driving control signal S2A, the third driving control signal S1B, the fourth driving control signal S2B to the second DRIVER2, the first driving control signal S1A, the second driving control signal S2A, the third driving control signal S1B and the fourth driving control signal S2B to the third DRIVER3, and the first driving control signal S1A, the second driving control signal S2A, the third driving control signal S1B and the fourth driving control signal S2B to the fourth DRIVER 4. The third DRIVER3 and the fourth DRIVER4 are also connected to the set voltage VDRV. The operation of the driving controller 1301 to drive the first DRIVER1, the second DRIVER2, the third DRIVER3, and the fourth DRIVER4 is divided into the following two stages.

Fig. 8 is an equivalent circuit diagram of a discrete voltage conversion circuit provided in the embodiment of the present utility model in a first stage, combining fig. 7 and 8, in the first stage, a first switching tube Q1, a third switching tube Q3, a fifth switching tube Q5, an eighth switching tube Q8, and a ninth switching tube Q9 are turned on according to a 50% duty ratio, a second switching tube Q2, a fourth switching tube Q4, a sixth switching tube Q6, a seventh switching tube Q7, and a tenth switching tube Q10 are turned off according to a 50% duty ratio, a first capacitor C1 is charged by a 48V voltage, and simultaneously, power is supplied to a rear load, a second capacitor C2 is discharged and charges a third capacitor C3, and simultaneously, power is also supplied to the rear load. From this it is possible to obtain:

VIN＝Vc1+VOUT；

Vc2＝VOUT+Vc3；

wherein Vc1 represents the first capacitance voltage stored in the first capacitor C1, vc2 represents the second capacitance voltage stored in the second capacitor C2, and Vc3 represents the third capacitance voltage stored in the third capacitor C3.

Fig. 9 is an equivalent circuit diagram of a discrete voltage conversion circuit provided in the embodiment of the present utility model in a second stage, combining fig. 7 and fig. 9, in the second stage, the first switching tube Q1, the third switching tube Q3, the fifth switching tube Q5, the eighth switching tube Q8, and the ninth switching tube Q9 are turned off according to a 50% duty ratio, the second switching tube Q2, the fourth switching tube Q4, the sixth switching tube Q6, the seventh switching tube Q7, and the tenth switching tube Q10 are turned on according to a 50% duty ratio, the first capacitor C1 is charged by 48V voltage, and simultaneously, power is transmitted to a rear load, the second capacitor C2 is discharged and charges the third capacitor C3, and simultaneously, power is transmitted to the rear load. From this it is possible to obtain:

Vc1＝Vc2+VOUT；

Vc3＝VOUT；

The four formulas corresponding to the working engineering of the two stages can be obtained:

VOUT＝1/4*VIN；

the 48V voltage is converted into 12V voltage by switching of ten switching transistors in a 4:1 manner, and the conversion unit 1311 converts the 54V input voltage VIN into the 12V output voltage VOUT.

It should be noted that, the conversion unit shown in fig. 7 is only shown by taking a driver and a switching tube required for converting the 54V voltage into the 12V voltage as an example, and those skilled in the art may add the driver and the switching tube according to the actual input voltage and the target voltage to be converted, and the number of the driver and the switching tube is not specifically limited in this embodiment.

Based on the above technical solution, optionally, the first protection module and/or the second protection module may adopt an integrated circuit structure or a discrete circuit structure. When the first protection module and/or the second protection module adopt an integrated circuit structure, the driving module, the functional module and the MOS tube can be integrated into one chip, the peripheral circuit is simple, and the occupied space is small. The MOS tube can be used for controlling the conduction state between the voltage conversion module and the second connector. Fig. 10 is a schematic structural diagram of a first protection module or a second protection module according to an embodiment of the present utility model, where fig. 10 exemplarily illustrates a case where the first protection module or the second protection module adopts an integrated circuit structure, and the integrated circuit structure includes an MP5991 chip and a peripheral circuit thereof. The input voltage VI of the voltage input end of the MP5991 chip is equal to the second power supply voltage output by the voltage conversion module, wherein the output voltage VOUT of the voltage output end of the MP5991 chip is determined by the switching state of the MOS transistor integrated in the MP5991 chip, when the MOS transistor is turned on, the output voltage VO is equal to the second power supply voltage, and when the MOS transistor is turned off, the output voltage VO is equal to 0. When the first protection module and/or the second protection module adopt an integrated circuit structure, a plurality of first protection modules can be used in parallel, and/or a plurality of second protection modules can be used in parallel, and the number of phases needing to be connected in parallel is calculated according to actual current requirements.

When the first protection module and/or the second protection module adopt a discrete circuit structure, a mode of matching the hot plug control chip with an external MOS tube can be adopted, wherein the hot plug control chip integrates various protection function modules and drives, the actual through flow is controlled by means of the type and the number of the external MOS tube, and the external MOS tube can be used for controlling the conduction state between the voltage conversion module and the second connector. Fig. 11 is a schematic structural diagram of another first protection module or a second protection module according to an embodiment of the present utility model, where fig. 11 exemplarily shows that the first protection module or the second protection module adopts a discrete circuit structure, and the discrete circuit structure includes an ADM1278-1 chip and a peripheral circuit thereof. The input voltage VI of the voltage input end of the ADM1278-1 chip is equal to the second power supply voltage output by the voltage conversion module, wherein the output voltage VO of the voltage output end of the ADM1278-1 chip is determined by the switch state of the MOS transistor arranged outside the ADM1278-1 chip, when the MOS transistor is turned on, the output voltage VO is equal to the second power supply voltage, and when the MOS transistor is turned off, the output voltage VOUT is equal to 0. The number of the externally arranged MOS transistors can be determined according to the current that actually needs to flow, and the larger the current that needs to flow, the larger the number of the MOS transistors that need to be arranged, wherein fig. 11 shows that the MOS transistors that are arranged outside the ADM1278-1 chip include n MOS transistors, which are respectively the first MOS transistor Q01 … … n MOS transistor Q0n, and the MOS transistors are connected in parallel. In addition, precision resistors can be arranged outside the ADM1278-1 chip, wherein the number of the precision resistors can be determined by the current which needs to flow actually, the larger the current which needs to flow is, the larger the number of the precision resistors is needed, and the precision resistors are connected in parallel, wherein three precision resistors which are respectively the first precision resistor Rs1 are arranged outside the ADM1278-1 chip and are shown in an exemplary manner in FIG. 11. In the case of the second precision resistor Rs2 and the third precision resistor Rs3, the ADM1278-1 chip can determine the actual current by detecting the voltage across the precision resistors.

It should be noted that, if there are power management buses (Power Management Bus, PMBus) and power consumption monitoring requirements for the server system, when the first protection module or the second protection module includes an integrated circuit structure, a chip product with two functions may be selected, and when the first protection module or the second protection module includes a discrete circuit structure, a precision resistor may be designed at the periphery, a control chip with PMBus function may be selected, or a power consumption monitoring chip may be additionally added.

Fig. 12 is a schematic structural diagram of another power adapter board for a server according to an embodiment of the present utility model, referring to fig. 12, optionally, the power adapter board for a server 100 further includes a fault control module 140, where the fault control module 140 is electrically connected to at least part of internal nodes in the voltage conversion circuit 130, the fault control module 140 is further electrically connected to the motherboard 300, and the fault control module 140 is configured to send a fault signal to the motherboard 300 when a voltage of any internal node is less than a corresponding set voltage, so that the motherboard 300 controls the first protection module 132 to turn off between an output end of the voltage conversion circuit 130 and the second connector 120.

Specifically, the fault control module 140 sends a signal corresponding to the working state of the voltage conversion circuit 130 to the motherboard 300 according to the voltage of the internal node in the voltage conversion circuit 130 connected to the fault control module 140, and when the voltage of each internal node connected to the fault control module 140 is greater than or equal to the corresponding set voltage, the fault control module 140 sends a normal feedback signal corresponding to the normal operation of the voltage conversion circuit 130 to the motherboard 300, and the motherboard 300 controls the first protection module 132 to conduct between the voltage conversion module 131 and the first output terminal OUT1 of the second connector 120 according to the normal feedback signal, so that the first power receiving component (the case that the first power receiving component includes an on-board component is schematically shown in fig. 12) of the motherboard 300 can normally obtain power supply. When the voltage of any internal node connected by the fault control module 140 is smaller than the corresponding set voltage, a fault signal is sent to the main board 300, so that the main board 300 controls the first protection module 132 to switch off the output end of the voltage conversion circuit 130 from the second connector 120, the first output end OUT1 of the second connector 120 is not output, the first power receiving component cannot obtain power supply, and when the main board 300 receives the fault signal, the control server works in a standby state to protect the server; the method and the system ensure that when a single server fails, the single server is disconnected in time, the operation of other servers is not affected, the fault can be hot plugged, and the whole server cluster is higher in reliability and convenient to maintain.

In an alternative embodiment of the present utility model, the fault control module 140 is electrically connected to each internal node in the voltage conversion circuit 130, so that when the voltage of any internal node in the voltage conversion circuit 130 is abnormal, the power supply to the first power receiving component is turned off in time, and further, the server is better protected. In this embodiment, the internal nodes of the voltage conversion circuit 130 include a connection node between the first connector 110 and the voltage conversion module 131, a connection node between the voltage conversion module 131 and the first protection module 132, a connection node between the voltage conversion module 131 and the second protection module 133, a connection node between the first protection module 132 and the second connector 120, and a connection node between the second protection module 133 and the second connector 120. The set voltages corresponding to different internal nodes may be different.

It should be noted that, when the motherboard 300 receives the fault signal, the server may be in a standby state, and the initiation condition of the standby state may be other forms, for example, when receiving the instruction corresponding to the standby state, the motherboard 300 controls the first protection module 132 to turn off the output terminal of the voltage conversion circuit 130 from the second connector 120, and the server is in the standby state.

With continued reference to fig. 12, optionally, the fault control module 140 includes a plurality of indication units 141 and a logic control unit 142, where an input end of each indication unit 141 is connected to an internal node, an output end of each indication unit 141 is electrically connected to an input end of the logic control unit 142, and the indication unit 141 is configured to send an indication signal when a voltage of the connected internal node is greater than or equal to a set voltage; the output end of the logic control unit 142 is communicatively connected to the motherboard 300, and the logic control unit 142 is configured to control output of the fault signal according to the voltage at the output end of the indication unit 141.

Alternatively, the indication unit 141 includes an indication lamp, wherein the indication lamp may include a light emitting diode. Wherein, when the voltage of the internal node connected to the indicating unit 141 is greater than or equal to the set voltage, the indicating unit 141 is lighted to emit an indicating signal; when the voltage of the internal node connected to the indicating unit 141 is smaller than the set voltage, the indicating unit 141 is not turned on and cannot send out an indicating signal, so that the working state of the voltage conversion circuit 130 can be prompted to the staff whether an abnormality occurs.

Optionally, logic control unit 142 includes an and gate. When the voltage of the internal node connected to each indicating unit 141 is greater than or equal to the set voltage, the logic control unit 142 outputs a low-level signal to the motherboard 300, and the motherboard 300 controls the first protection module 132 to conduct the voltage conversion module 131 with the first output terminal OUT1 of the second connector 120 according to the low-level signal; when the voltage of the internal node connected to any one of the indicating units 141 is less than the set voltage, the logic control unit 142 outputs a high level signal to the main board 300, and the main board 300 controls the first protection module 132 to turn off between the voltage conversion module 131 and the first output terminal OUT1 of the second connector 120 according to the high level signal.

Optionally, the second power receiving component includes a programmable logic device CPLD, where the programmable logic device CPLD is configured to send a control signal to the first protection module 132 according to the fault signal, so that the first protection module 132 controls the voltage conversion module 131 to be disconnected from the first output terminal OUT 1.

Specifically, when the server is in the full power state and the standby state, the second protection module 133 controls the voltage conversion module 131 to be conducted with the second output terminal OUT2 of the second connector 120, and the second power receiving component can be supplied with power in both the full power state and the standby state, that is, the programmable logic device CPLD can be supplied with power when the server is in the full power state and the standby state. Therefore, the second power receiving component includes a programmable logic device CPLD, and the programmable logic device CPLD may send a control signal to the first protection module 132 according to the fault signal, so that the first protection module 132 may control the disconnection between the voltage conversion module 131 and the first output terminal OUT1 of the second connector 120, and further disconnect the power supply of the first power receiving component to protect the server.

It should be noted that, the voltage required by the programmable logic device CPLD may be smaller than the second power supply voltage, and the voltage conversion may be performed by the on-board conversion circuit in the second power receiving component to supply power to the CPLD.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. A power patch panel for a server, comprising: a first connector, a second connector, and a voltage conversion circuit electrically connected to the first connector and the second connector, respectively;

the first connector is used for being connected with a power module for providing a first power supply voltage; the voltage conversion circuit is used for converting the first power supply voltage into a second power supply voltage and transmitting the second power supply voltage to the second connector; the first power supply voltage is greater than the second power supply voltage; the second connector comprises a first output end and a second output end, and is used for being connected with a first power receiving component of a server main board through the first output end and a second power receiving component of the main board through the second output end;

The voltage conversion circuit is further used for outputting the second power supply voltage through the first output end and the second output end when the server works in a full power state, outputting the second power supply voltage through the second output end when the server works in a standby state, and controlling the first output end to be free of output.

2. The power adapter board for a server according to claim 1, wherein the voltage conversion circuit includes a voltage conversion module, a first protection module, and a second protection module; the input end of the voltage conversion module is electrically connected with the first connector, the output end of the voltage conversion module is respectively electrically connected with the input end of the first protection module and the input end of the second protection module, and the voltage conversion module is used for converting the first power supply voltage into the second power supply voltage;

the output end of the first protection module is electrically connected with the first output end, and the first protection module is used for controlling the connection between the voltage conversion module and the first output end when the server works in the full power state and controlling the disconnection between the voltage conversion module and the first output end when the server works in the standby state;

The output end of the second protection module is electrically connected with the second output end, and the second protection module is used for controlling the conduction between the voltage conversion module and the second output end when the server works in the full-power state and the standby state.

3. The power adapter board for a server according to claim 2, wherein the voltage conversion module includes two conversion units, one of the conversion units is connected to the output terminal of the power module and the input terminal of the first protection module, and the other conversion unit is connected to the output terminal of the power module and the input terminal of the second protection module, respectively, and the conversion unit is configured to convert the first power supply voltage into the second power supply voltage;

alternatively, the voltage conversion module includes a conversion unit, an input terminal of the conversion unit is used as an input terminal of the voltage conversion module, and an output terminal of the conversion unit is used as an output terminal of the voltage conversion module.

4. A power patch panel for a server according to claim 3, wherein said conversion unit comprises a DCDC integrated chip or a discrete voltage conversion circuit.

5. The power patch panel for a server according to claim 2, wherein said first protection module and/or said second protection module comprises an MP5991 chip and its peripheral circuits, or an ADM1278-1 chip and its peripheral circuits.

6. The power adapter board for a server according to any one of claims 2 to 5, further comprising a fault control module, wherein the fault control module is electrically connected to at least some of the internal nodes in the voltage conversion circuit, and is further electrically connected to the motherboard, and the fault control module is configured to send a fault signal to the motherboard when a voltage of any of the internal nodes is less than a corresponding set voltage, so that the motherboard controls the first protection module to turn off between an output terminal of the voltage conversion circuit and the second connector.

7. The power adapter board for a server according to claim 6, wherein the fault control module includes a plurality of indication units and a logic control unit, wherein an input terminal of each of the indication units is connected to one of the internal nodes, an output terminal of each of the indication units is electrically connected to an input terminal of the logic control unit, and the indication unit is configured to issue an indication signal when a voltage of the connected internal node is greater than or equal to a set voltage;

The output end of the logic control unit is in communication connection with the main board, and the logic control unit is used for controlling the output of the fault signal according to the voltage of the output end of the indicating unit.

8. The power patch panel for a server of claim 7, wherein said second powered component comprises a programmable logic device configured to send a control signal to said first protection module in response to said fault signal to cause said first protection module to control a disconnection between said voltage conversion module and said first output terminal.

9. The power adapter board for a server of claim 1, wherein the first connector mates with an interface of the power module and the second connector mates with the motherboard interface.

10. The power adapter plate for a server of claim 1, wherein the power module is a universal redundant power supply.

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