CN208723805U - A kind of powersupply system - Google Patents
A kind of powersupply system Download PDFInfo
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- CN208723805U CN208723805U CN201821430056.0U CN201821430056U CN208723805U CN 208723805 U CN208723805 U CN 208723805U CN 201821430056 U CN201821430056 U CN 201821430056U CN 208723805 U CN208723805 U CN 208723805U
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Abstract
The utility model provides a kind of powersupply system, comprising: for exporting the main power circuit of main power DC electricity；The boost voltage stable for output amplitude, input terminal connect the main power circuit output end, detect the output parameter of the main power circuit and adjust the auxiliary power circuit of the boost voltage amplitude according to the output parameter；Power end connects the output end of the auxiliary power circuit, and output end connects and controls the control unit of the main power circuit.Boost voltage is supplied into control unit, to realize that boost voltage is reduced with the reduction of main power circuit output power, change the power consumption of auxiliary power circuit with the output power of main power circuit, further improves the overall conversion efficiency of entire powersupply system.
Description
Technical Field
The utility model relates to an electronic equipment field especially relates to a power supply system.
Background
Generally, in an electric power supply system, some control circuits are included in the power supply system in order to accurately control output electric power, or other auxiliary functions. A prerequisite for the proper operation of these control circuits is the need to supply a dc voltage of constant amplitude, which is usually referred to as auxiliary voltage.
Therefore, in addition to the main power output from the output terminal, a general power supply system also needs to generate an auxiliary voltage internally, and a circuit for generating the auxiliary voltage is an auxiliary power supply circuit. In the current power supply system, the auxiliary voltage is fixed regardless of whether the main power output of the power supply system is full load output or light load output. This results in the loss of the auxiliary power circuit being unchanged regardless of whether the power supply system is under light load or full load, resulting in low overall conversion efficiency of the power supply.
How to improve the overall conversion efficiency of the power supply system is a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a power supply system for improve power supply system's whole conversion efficiency.
In order to solve the above technical problem, the utility model provides a power supply system, include:
a main power circuit for outputting a main power direct current;
the auxiliary power supply circuit is used for outputting auxiliary voltage with stable amplitude, the input end of the auxiliary power supply circuit is connected with the output end of the main power circuit, detecting the output parameter of the main power circuit and adjusting the amplitude of the auxiliary voltage according to the output parameter;
and the power supply end is connected with the output end of the auxiliary power supply circuit, and the output end of the auxiliary power supply circuit is connected with and controls the control unit of the main power circuit.
Optionally, the power supply system further includes: and the power end is connected with the heat dissipation unit at the output end of the auxiliary power circuit.
Optionally, the output parameters include: one or more of output current, output voltage, and output power.
Optionally, the auxiliary power supply circuit specifically includes:
an auxiliary power supply main circuit with an output end outputting an auxiliary voltage;
the input end of the detection circuit is connected with the output end of the main power circuit, and the detection circuit detects the output parameters of the main power circuit to obtain the detection parameters;
the output end of the auxiliary power supply main circuit is connected with the control end of the auxiliary power supply main circuit, the first input end of the auxiliary power supply main circuit is connected with the output end of the auxiliary power supply main circuit to detect the auxiliary voltage, the detection value of the auxiliary voltage is compared with the reference value, the auxiliary power supply main circuit is controlled according to the comparison result to output the auxiliary voltage with stable amplitude, the second input end of the auxiliary power supply main circuit is connected with the detection circuit, and the voltage feedback circuit of the auxiliary voltage amplitude is adjusted according to the detection.
Optionally, the detection circuit has an output end, and the detection parameter output by the output end is an output current detection parameter.
Optionally, the voltage feedback circuit specifically includes: the circuit comprises a first integrated operational amplifier, a first resistor, a second resistor and a compensation network; wherein,
the inverting input end of the first integrated operational amplifier is connected with one end of a first resistor, and the other end of the first resistor is used as the first input end of the voltage feedback circuit and is connected with the output end of the auxiliary power supply main circuit; the inverting input end of the first integrated operational amplifier is also connected with one end of the second resistor, and the other end of the second resistor is used as the second input end of the voltage feedback circuit and is connected with the detection circuit;
the non-inverting input end of the first integrated operational amplifier is used for inputting the reference value;
the output end of the first integrated operational amplifier is used as the output end of the voltage feedback circuit and is connected with the control end of the auxiliary power supply main circuit;
the compensation network is connected between the inverting input and the output of the first integrated operational amplifier.
Optionally, the detection circuit has two output ends, and the two output ends are a current detection parameter output end and a voltage detection parameter output end respectively;
the second input end of the voltage feedback circuit further comprises two sub-input ends, and the two sub-input ends are respectively and correspondingly connected with the two output ends of the detection circuit.
Optionally, the voltage feedback circuit specifically includes: the second integrated operational amplifier, the third resistor, the fourth resistor, the fifth resistor and the compensation network; wherein,
the inverting input end of the second integrated operational amplifier is connected with one end of a third resistor, and the other end of the third resistor is used as the first input end of the voltage feedback circuit and is connected with the output end of the auxiliary power supply main circuit; the inverting input end of the second integrated operational amplifier is also connected with one end of a fourth resistor and one end of a fifth resistor, and the other end of the fourth resistor and the other end of the fifth resistor are respectively used as two sub-input ends and correspondingly connected with the detection circuit;
the non-inverting input end of the second integrated operational amplifier inputs the reference value;
the output end of the second integrated operational amplifier is used as the output end of the voltage feedback circuit and is connected with the control end of the auxiliary power supply main circuit;
the compensation network is connected between the inverting input and the output of the second integrated operational amplifier.
The utility model provides a power supply system passes through main power circuit output main power direct current, the main power circuit of control unit control, the stable auxiliary voltage of auxiliary power circuit output amplitude, and detect main power circuit's output parameter, basis the output parameter adjustment auxiliary voltage amplitude supplies auxiliary voltage to the control unit to realize that auxiliary voltage reduces along with main power circuit output's reduction, make auxiliary power circuit's consumption change along with main power circuit's output, further make whole power supply system's whole conversion efficiency improve.
Drawings
In order to clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first power supply system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second power supply system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a third power supply system according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a fourth power supply system according to an embodiment of the present invention;
Detailed Description
The core of the utility model is to provide a power supply system for improve power supply system's whole conversion efficiency.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a first power supply system according to an embodiment of the present invention. As shown in fig. 1, the power supply system includes:
a main power circuit 1 for outputting a main power direct current;
the auxiliary power supply circuit 2 is used for outputting auxiliary voltage with stable amplitude, the input end of the auxiliary power supply circuit is connected with the output end of the main power circuit 1, detecting the output parameter of the main power circuit 1 and adjusting the amplitude of the auxiliary voltage according to the output parameter;
the power end is connected with the output end of the auxiliary power circuit 2, and the output end is connected with and controls the control unit 3 of the main power circuit 1.
The input voltage of the main power circuit 1 is Vin, which may be ac or dc. The main power circuit 1 converts an input power source into a direct current, and is usually implemented by an AC-DC topology or a DC-DC topology, and has an output voltage Vo and an output current Io. The main power circuit 1 is a circuit for processing main power in the power supply system, and is also a main circuit for outputting the main power. The rest of the circuits, such as the auxiliary power supply circuit 2, are used to output an auxiliary voltage to the control unit 3, and the control unit 3 controls the main power circuit to make its output parameter a set value.
For the embodiment of the main power circuit 1 for processing the main power and how the control unit 3 controls the main power circuit 1 to output the set parameters, reference may be made to the prior art, and details are not described herein again.
And the auxiliary power supply circuit 2 is used for outputting an auxiliary voltage with a stable amplitude on one hand, detecting an output parameter of the main power circuit 1 on the other hand, and adjusting the amplitude of the auxiliary voltage according to the output parameter. That is, the magnitude of the auxiliary voltage output from the auxiliary power supply circuit 2 is not constant but varies according to the output parameter of the main power circuit 1. Therefore, the auxiliary voltage can be reduced along with the reduction of the output power of the main power circuit, the power consumption of the auxiliary power circuit is changed along with the output power of the main power circuit, and the overall conversion efficiency of the whole power supply system is further improved.
Specifically, the auxiliary power supply circuit 2 detects that the output parameter of the main power circuit decreases, and adjusts the auxiliary voltage output by itself to decrease. The output end of the auxiliary power supply circuit 2 is connected to the control unit 3, etc. which needs the auxiliary voltage to supply power to it for normal operation, and these circuits or units are used as the load of the auxiliary power supply circuit 2, and the loss of the auxiliary power supply circuit is usually attributed to the loss of the auxiliary power supply. When the output of the main power circuit 1 is light load, the auxiliary power circuit 2 reduces the auxiliary voltage output by the main power circuit, and at the moment, the output power of the auxiliary power circuit 2 is also reduced, so that the loss of the auxiliary power supply is reduced, and the overall conversion efficiency of the power supply system is further improved.
Optionally, as shown in fig. 1, the power supply system of the present application further includes: and the power supply end is connected with the heat dissipation unit 4 at the output end of the auxiliary power supply circuit.
The heat dissipation unit 4 with a power supply is a component or a peripheral circuit thereof, such as a fan, which is used for dissipating heat of the power supply system and needs an auxiliary voltage to start heat dissipation.
Optionally, the output parameters of the main power circuit of the present application include: one or more of output current, output voltage, and output power.
The embodiment of the utility model provides a power supply system passes through main power circuit output main power direct current, the main power circuit of control unit control, the stable auxiliary voltage of auxiliary power circuit output amplitude, and detect main power circuit's output parameter, basis the output parameter adjustment auxiliary voltage amplitude is with auxiliary voltage supply control unit to realize that auxiliary voltage reduces along with main power circuit output's reduction, make auxiliary power circuit's consumption change along with main power circuit's output, further make whole power supply system's whole conversion efficiency improve.
Fig. 2 is a schematic structural diagram of a second power supply system according to an embodiment of the present invention. As shown in fig. 2, on the basis of the above embodiment, in another embodiment, the auxiliary power supply circuit 2 may specifically include:
an auxiliary power supply main circuit 21 whose output end outputs an auxiliary voltage;
a detection circuit 22, the input end of which is connected with the output end of the main power circuit 1, and which detects the output parameter of the main power circuit 1 to obtain a detection parameter;
the output end of the auxiliary power supply main circuit 21 is connected with the control end of the auxiliary power supply main circuit 21, the first input end of the auxiliary power supply main circuit 21 is connected with the output end of the auxiliary power supply main circuit 21 to detect the auxiliary voltage, the detection value of the auxiliary voltage is compared with the reference value, the auxiliary power supply main circuit 21 is controlled according to the comparison result to output the auxiliary voltage with stable amplitude, the second input end of the auxiliary power supply main circuit is connected with the detection circuit 22, and the voltage feedback circuit 23 is used for adjusting the amplitude of the auxiliary.
Referring to fig. 2, the auxiliary power main circuit 21 is configured to convert the input voltage Vdc into an auxiliary voltage Vcc. The auxiliary voltage Vcc is a dc voltage, and the auxiliary power supply main circuit 21 is controlled by a voltage feedback circuit 23. The voltage feedback circuit 23 has a first input terminal for receiving an auxiliary voltage detection value Vcc-1, compares the detection value Vcc-1 with an internal reference value in the voltage feedback circuit 23, and controls the auxiliary power main circuit 21 according to the comparison result so that the auxiliary voltage Vcc outputted therefrom is a set value. Meanwhile, on the other hand, the second input terminal of the voltage feedback circuit 23 is further configured to receive a detection parameter Vs output by the detection circuit, where the detection parameter Vs represents the output power of the main power circuit, and adjust the amplitude of the auxiliary voltage output by the voltage feedback circuit 23 according to the detection parameter Vs.
The set value of the auxiliary voltage Vcc is determined by the detection value Vcc-1 and the reference value. That is, when it is necessary to change the value of the auxiliary voltage Vcc, it is possible to change the detection value or the reference value in the voltage feedback circuit 23, for example, the value of the auxiliary voltage Vcc increases as the reference value increases, and increases as the detection value decreases.
In the embodiment, the auxiliary power supply circuit 2 generates the auxiliary voltage Vcc through a specific auxiliary power supply main circuit 21, controls the auxiliary voltage Vcc main circuit 21 through the voltage feedback circuit 23, and stabilizes the auxiliary voltage Vcc output by the auxiliary voltage Vcc at a set value, and simultaneously, through the detection parameter Vs output by the detection circuit 22, enables the voltage feedback circuit 23 to adjust the amplitude of the auxiliary voltage Vcc according to the detection parameter Vs by controlling the auxiliary power supply main circuit 21, so that the amplitude of the auxiliary voltage Vcc changes along with the change of the main power output, thereby improving the overall conversion efficiency of the power supply system.
Optionally, the detection circuit of the present application may have an output terminal, and the detection parameter output by the output terminal is an output current detection parameter. I.e. the detection circuit detects the output current of the main power circuit.
Fig. 3 is a schematic structural diagram of a third power supply system according to an embodiment of the present invention. As shown in fig. 3, on the basis of the above embodiment, in another embodiment, the voltage feedback circuit 23 may specifically include: the circuit comprises a first integrated operational amplifier U1, a first resistor R1, a second resistor R2 and a compensation network; wherein,
the inverting input end of the first integrated operational amplifier U1 is connected to one end of the first resistor R1, and the other end of the first resistor R1 is used as the first input end of the voltage feedback circuit 23 and is connected to the output end of the auxiliary power supply main circuit 21; the inverting input terminal of the first integrated operational amplifier U1 is further connected to one end of the second resistor R2, and the other end of the second resistor R2 is used as the second input terminal of the voltage feedback circuit 23 and is connected to the detection circuit 22 (the detection circuit is not shown in this figure, and only the output parameter V1 of the detection circuit is shown);
the non-inverting input end of the first integrated operational amplifier U1 inputs the reference value Vref;
the output end of the first integrated operational amplifier U1 is used as the output end of the voltage feedback circuit 23 and is connected with the control end of the auxiliary power supply main circuit 21;
the compensation network is connected between the inverting input and the output of the first integrated operational amplifier U1.
In a specific implementation, a first input terminal of the voltage feedback circuit 23 is connected to an output terminal of the auxiliary power main circuit 21, and is configured to receive an auxiliary voltage detection value Vcc-1. A second input terminal of the voltage feedback circuit 23 is connected to the detection circuit 22, and is configured to receive the detection parameter V1. In this embodiment, the detection parameter V1 may be an output current detection parameter. The auxiliary voltage detection value Vcc-1 and the detection parameter V1 are superposed by the first resistor R1 and the second resistor R2 and then input to the inverting input end of the first integrated operational amplifier U1 to be compared with the reference value Vref of the non-inverting input end, and the auxiliary power main circuit 21 is controlled according to the compared difference output signal, and further, the first integrated operational amplifier U1 and the compensation network closed-loop adjust the auxiliary power main circuit 21 to enable the auxiliary voltage Vcc output by the auxiliary power main circuit to be a direct current voltage with a stable amplitude, and the amplitude is increased and decreased along with the increase and decrease of the output current of the main power circuit. Therefore, in the power supply system, when the output power of the main power circuit is reduced to light load, the output power of the auxiliary power circuit is reduced, and the overall conversion efficiency of the power supply system is improved.
Optionally, the detection circuit of the present application may have two output terminals, where the two output terminals are a current detection parameter output terminal and a voltage detection parameter output terminal, respectively; the second input end of the voltage feedback circuit further comprises two sub-input ends, and the two sub-input ends are respectively and correspondingly connected with the two output ends of the detection circuit.
Fig. 4 is a schematic structural diagram of a fourth power supply system according to an embodiment of the present invention. As shown in fig. 4, on the basis of the above embodiment, in another embodiment, the voltage feedback circuit 23 may specifically include: the circuit comprises a second integrated operational amplifier U2, a third resistor R3, a fourth resistor R4, a fifth resistor R5 and a compensation network; wherein,
the inverting input end of the second integrated operational amplifier U2 is connected to one end of the third resistor R3, and the other end of the third resistor R3 is used as the first input end of the voltage feedback circuit 23 and is connected to the output end of the auxiliary power supply main circuit 21; the inverting input terminal of the second integrated operational amplifier U2 is further connected to one end of the fourth resistor R4 and one end of the fifth resistor R5, and the other end of the fourth resistor R4 and the other end of the fifth resistor R5 are respectively used as two sub-input terminals of the second input terminal of the voltage feedback circuit 23 and correspondingly connected to the detection circuit 22;
the non-inverting input end of the second integrated operational amplifier U2 inputs the reference value Vref;
the output end of the second integrated operational amplifier U2, which is used as the output end of the voltage feedback circuit 23, is connected to the control end of the auxiliary power supply main circuit 21;
the compensation network is connected between the inverting input and the output of the second integrated operational amplifier U2. In a specific implementation, a first input terminal of the voltage feedback circuit 23 is connected to an output terminal of the auxiliary power main circuit 21, and is configured to receive an auxiliary voltage detection value Vcc-1. A second input terminal of the voltage feedback circuit 23 is connected to the detection circuit 22 for receiving the detection parameters V2 and V3. In contrast to the embodiment shown in fig. 3, in this embodiment, the second input terminal of the voltage feedback circuit 23 has two sub-input terminals, which are respectively connected to two output terminals of the detection circuit 22. Two output ends of the detection circuit 22 respectively output a current detection parameter V2 and a voltage detection parameter V3.
In this embodiment, the fourth resistor R4 and the fifth resistor R5 respectively superimpose the current detection parameter V2 and the voltage detection parameter V3, the superimposed signals can represent the output power of the main power circuit, and the auxiliary voltage detection value Vcc-1 is also input to the inverting input terminal of the second integrated operational amplifier U2, the superimposed values of the three signals are compared with the reference value Vref of the non-inverting input terminal, and the auxiliary power main circuit 21 is controlled according to the compared difference output signal, further, the second integrated operational amplifier U2 and the compensation network adjust the auxiliary power main circuit 21 in a closed loop manner, so that the auxiliary voltage Vcc output by the auxiliary power main circuit is a dc voltage with a stable amplitude, and the amplitude is increased and decreased with the increase of the output power of the main power circuit. Therefore, in the power supply system, when the output power of the main power circuit is reduced to light load, the output power of the auxiliary power circuit is reduced, and the overall conversion efficiency of the power supply system is improved.
In the above embodiments, the detection circuit is used for detecting the output parameter of the main power circuit and obtaining the detection parameter, that is, a manner of detecting the output current or the output voltage of the main power circuit, which may refer to the prior art and is not described herein again.
It is right above that the utility model provides a power supply system introduces in detail. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (8)
1. A power supply system, comprising:
a main power circuit for outputting a main power direct current;
the auxiliary power supply circuit is used for outputting auxiliary voltage with stable amplitude, the input end of the auxiliary power supply circuit is connected with the output end of the main power circuit, detecting the output parameter of the main power circuit and adjusting the amplitude of the auxiliary voltage according to the output parameter;
and the power supply end is connected with the output end of the auxiliary power supply circuit, and the output end of the auxiliary power supply circuit is connected with and controls the control unit of the main power circuit.
2. The power supply system according to claim 1, characterized by further comprising:
and the power end is connected with the heat dissipation unit at the output end of the auxiliary power circuit.
3. The power supply system of claim 1, wherein the output parameters comprise: one or more of output current, output voltage, and output power.
4. The power supply system according to claim 1, wherein the auxiliary power supply circuit specifically includes:
an auxiliary power supply main circuit with an output end outputting an auxiliary voltage;
the input end of the detection circuit is connected with the output end of the main power circuit, and the detection circuit detects the output parameters of the main power circuit to obtain the detection parameters;
the output end of the auxiliary power supply main circuit is connected with the control end of the auxiliary power supply main circuit, the first input end of the auxiliary power supply main circuit is connected with the output end of the auxiliary power supply main circuit to detect the auxiliary voltage, the detection value of the auxiliary voltage is compared with the reference value, the auxiliary power supply main circuit is controlled according to the comparison result to output the auxiliary voltage with stable amplitude, the second input end of the auxiliary power supply main circuit is connected with the detection circuit, and the voltage feedback circuit of the auxiliary voltage amplitude is adjusted according to the detection.
5. The power supply system according to claim 4, wherein the detection circuit has an output terminal outputting the detection parameter as the output current detection parameter.
6. The power supply system according to claim 5, wherein the voltage feedback circuit specifically comprises: the circuit comprises a first integrated operational amplifier, a first resistor, a second resistor and a compensation network; wherein,
the inverting input end of the first integrated operational amplifier is connected with one end of a first resistor, and the other end of the first resistor is used as the first input end of the voltage feedback circuit and is connected with the output end of the auxiliary power supply main circuit; the inverting input end of the first integrated operational amplifier is also connected with one end of the second resistor, and the other end of the second resistor is used as the second input end of the voltage feedback circuit and is connected with the detection circuit;
the non-inverting input end of the first integrated operational amplifier is used for inputting the reference value;
the output end of the first integrated operational amplifier is used as the output end of the voltage feedback circuit and is connected with the control end of the auxiliary power supply main circuit;
the compensation network is connected between the inverting input and the output of the first integrated operational amplifier.
7. The power supply system according to claim 4, wherein said detection circuit has two output terminals, which are a current detection parameter output terminal and a voltage detection parameter output terminal, respectively;
the second input end of the voltage feedback circuit further comprises two sub-input ends, and the two sub-input ends are respectively and correspondingly connected with the two output ends of the detection circuit.
8. The power supply system according to claim 7, wherein the voltage feedback circuit specifically includes: the second integrated operational amplifier, the third resistor, the fourth resistor, the fifth resistor and the compensation network; wherein,
the inverting input end of the second integrated operational amplifier is connected with one end of a third resistor, and the other end of the third resistor is used as the first input end of the voltage feedback circuit and is connected with the output end of the auxiliary power supply main circuit; the inverting input end of the second integrated operational amplifier is also connected with one end of a fourth resistor and one end of a fifth resistor, and the other end of the fourth resistor and the other end of the fifth resistor are respectively used as two sub-input ends and correspondingly connected with the detection circuit;
the non-inverting input end of the second integrated operational amplifier is used for inputting the reference value;
the output end of the second integrated operational amplifier is used as the output end of the voltage feedback circuit and is connected with the control end of the auxiliary power supply main circuit;
the compensation network is connected between the inverting input and the output of the second integrated operational amplifier.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821430056.0U CN208723805U (en) | 2018-09-03 | 2018-09-03 | A kind of powersupply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821430056.0U CN208723805U (en) | 2018-09-03 | 2018-09-03 | A kind of powersupply system |
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| CN201821430056.0U Expired - Fee Related CN208723805U (en) | 2018-09-03 | 2018-09-03 | A kind of powersupply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067208A (en) * | 2018-09-03 | 2018-12-21 | 杭州乐充电子有限公司 | A kind of control method of powersupply system and power supply |
| CN111641268A (en) * | 2020-06-09 | 2020-09-08 | 云南电网有限责任公司电力科学研究院 | System and method for adjusting full load of direct current power supply |
-
2018
- 2018-09-03 CN CN201821430056.0U patent/CN208723805U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067208A (en) * | 2018-09-03 | 2018-12-21 | 杭州乐充电子有限公司 | A kind of control method of powersupply system and power supply |
| CN111641268A (en) * | 2020-06-09 | 2020-09-08 | 云南电网有限责任公司电力科学研究院 | System and method for adjusting full load of direct current power supply |
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