CN112952991A - Power supply redundant board - Google Patents
Power supply redundant board Download PDFInfo
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- CN112952991A CN112952991A CN202110359464.1A CN202110359464A CN112952991A CN 112952991 A CN112952991 A CN 112952991A CN 202110359464 A CN202110359464 A CN 202110359464A CN 112952991 A CN112952991 A CN 112952991A
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- circuit
- power supply
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- power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- Engineering & Computer Science (AREA)
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Abstract
The application discloses a power supply redundant board, which comprises a power supply access circuit, a first output circuit and a voltage conversion circuit, wherein a first input end of the power supply access circuit is electrically connected with a first connector, so as to be suitable for being electrically connected with a first power supply through a first connector, a second input end of the power supply access circuit is electrically connected with a second connector, the first output end of the power access circuit is electrically connected with the first input end of the first output circuit, the second output end of the power access circuit is electrically connected with the second input end of the first output circuit, the output end of the first output circuit is electrically connected with the input end of the voltage conversion circuit, the power access circuit accesses the first power supply or the second power supply, the first output circuit outputs the electric signal transmitted by the power access circuit, and the voltage conversion circuit converts the voltage of the electric signal transmitted by the power access circuit. And the mode of detachable connection with a power supply is adopted, and only a single fault part needs to be replaced during maintenance.
Description
Technical Field
The present disclosure relates to the field of redundant power supply technologies, and in particular, to a power supply redundancy board.
Background
The redundant power supply consists of two identical power supplies, the chip controls the power supplies to carry out load balancing, when one power supply fails, the other power supply can take over the work of the other power supply, and after the power supply is replaced, the two power supplies work in a cooperative mode, so that the high availability of the server system is realized.
The scheme of the redundant power supply sold in the market at present is that 2 or more power supplies are respectively connected with the anodes of diodes and output to a power supply bus in parallel in an OR gate mode, so that one power supply can work independently, and a plurality of power supplies can work simultaneously. When the redundancy of the existing power supply redundancy board product fails, the whole product needs to be replaced, so that the maintenance is inconvenient.
Disclosure of Invention
In view of the above, the present disclosure provides a power redundancy board, which includes a power access circuit, a first output circuit, and a voltage conversion circuit;
the first input end of the power supply access circuit is electrically connected with a first connector so as to be suitable for being electrically connected with a first power supply through the first connector;
the second input end of the power supply access circuit is electrically connected with a second connector so as to be suitable for being electrically connected with a second power supply through the second connector;
the first output end of the power supply access circuit is electrically connected with the first input end of the first output circuit;
the second output end of the power supply access circuit is electrically connected with the second input end of the first output circuit;
the output end of the first output circuit is electrically connected with the input end of the voltage conversion circuit;
the power supply access circuit accesses the first power supply or the second power supply and transmits the first power supply or the second power supply to the first output circuit;
the first output circuit outputs the electric signal transmitted by the power access circuit;
and the voltage conversion circuit converts the voltage of the electric signal transmitted by the power access circuit.
In one possible implementation manner, the power supply access circuit includes a first power supply access unit and a second power supply access unit;
the first power supply access unit is used as a first input end of the power supply access circuit and is electrically connected with the first connector;
the second power supply access unit is used as a second input end of the power supply access circuit and is electrically connected with the second connector.
In one possible implementation, the first output circuit includes an access chip;
a first input pin of the access chip is used as a first input end of the first output circuit and is electrically connected with a first output end of the power supply access circuit;
a second input pin of the access chip is used as a second input end of the first output circuit and is electrically connected with a second output end of the power supply access circuit;
and the output pin of the access chip is used as the output end of the first output circuit and is electrically connected with the input end of the voltage conversion circuit.
In one possible implementation manner, the power access circuit further includes a first capacitor, a second capacitor, and a polarity capacitor;
the first capacitor, the second capacitor and the polar capacitor are connected in parallel between an output pin and a grounding end of the access chip.
In one possible implementation manner, the voltage conversion circuit includes a conversion chip, a first resistor, a second resistor, a third capacitor, and an inductor;
the input end of the conversion chip is used as the input end of the voltage conversion circuit and is electrically connected with the first output circuit;
the booster pin of the conversion chip is electrically connected with one end of the first resistor;
the other end of the first resistor is electrically connected with one end of the third capacitor;
the other end of the third capacitor is electrically connected with one end of the inductor;
the output end of the conversion chip is electrically connected with one end of the inductor;
the feedback end of the conversion chip is electrically connected with one end of the second resistor;
the other end of the second resistor is electrically connected with the other end of the inductor.
In one possible implementation manner, the voltage conversion circuit further includes a fourth capacitor, a fifth capacitor, a sixth capacitor, and a seventh capacitor;
the fourth capacitor, the fifth capacitor, the sixth capacitor and the seventh capacitor are connected in parallel between the other end of the inductor and a ground terminal.
In one possible implementation manner, the output end of the first output circuit is electrically connected with a first connector, a second connector and a third connector;
a first magnetic bead is arranged between the first output circuit and the second connector;
a second magnetic bead is arranged between the first output circuit and the third connector;
the first connector is a 4-pin connector;
the second connector and the third connector are both 3-pin connectors.
In one possible implementation manner, the output end of the voltage conversion circuit is electrically connected with a fourth connector and a fifth connector;
the fourth connector and the fifth connector are both 2-pin connectors.
In one possible implementation manner, the power conversion circuit is connected to a 12V power supply;
the power conversion circuit outputs a 5V electric signal.
The power supply comprises a power supply access circuit, a first output circuit and a voltage conversion circuit, wherein a first input end of the power supply access circuit is electrically connected with a first connector, so as to be suitable for being electrically connected with a first power supply through a first connector, a second input end of the power supply access circuit is electrically connected with a second connector, the first output end of the power access circuit is electrically connected with the first input end of the first output circuit, the second output end of the power access circuit is electrically connected with the second input end of the first output circuit, the output end of the first output circuit is electrically connected with the input end of the voltage conversion circuit, the power access circuit accesses the first power supply or the second power supply and transmits the first power supply or the second power supply to the first output circuit, the first output circuit outputs the electric signal transmitted by the power access circuit, and the voltage conversion circuit converts the voltage of the electric signal transmitted by the power access circuit. The power supply redundancy board adopts a mode of being detachably connected with a power supply, only a single fault part needs to be replaced during maintenance, the power supply redundancy board can be placed at different positions of a case as required, and the purpose of convenient maintenance can be achieved.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.
FIG. 1 shows a schematic diagram of a power redundancy board of an embodiment of the present disclosure;
FIG. 2 shows a first power access unit schematic of a power redundancy board of an embodiment of the present disclosure;
FIG. 3 shows a second power access unit schematic of a power redundancy board of an embodiment of the present disclosure;
FIG. 4 shows a first output circuit schematic of a power redundancy board of an embodiment of the present disclosure;
FIG. 5 shows a voltage conversion circuit schematic of a power redundancy board of an embodiment of the present disclosure;
FIG. 6 shows a connector schematic of a power redundancy board of an embodiment of the present disclosure;
fig. 7 shows another connector schematic of a power redundancy board of an embodiment of the present disclosure.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
It will be understood, however, that the terms "central," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing or simplifying the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.
Fig. 1 shows a schematic diagram of a power redundancy board 100 according to an embodiment of the present disclosure. As shown in fig. 1, the power redundancy board 100 includes:
a power supply access circuit 110, a first output circuit 120, and a voltage conversion circuit 130, wherein a first input terminal of the power supply access circuit 110 is electrically connected to the first connector, adapted to be electrically connected to a first power source through a first connector, a second input terminal of the power access circuit 110 is electrically connected to a second connector, the second connector is suitable for being electrically connected with a second power supply, a first output end of the power access circuit 110 is electrically connected with a first input end of the first output circuit 120, a second output end of the power access circuit 110 is electrically connected with a second input end of the first output circuit 120, an output end of the first output circuit 120 is electrically connected with an input end of the voltage conversion circuit 130, the power access circuit 110 accesses the first power supply or the second power supply and transmits the first power supply or the second power supply to the first output circuit 120, the first output circuit 120 outputs an electric signal transmitted by the power access circuit 110, and the voltage conversion circuit 130 converts the voltage of the electric signal transmitted by the power access circuit 110.
By including the power access circuit 110, the first output circuit 120, and the voltage conversion circuit 130, the first input terminal of the power access circuit 110 is electrically connected to the first connector and is adapted to be electrically connected to the first power source through the first connector, the second input terminal of the power access circuit 110 is electrically connected to the second connector and is adapted to be electrically connected to the second power source through the second connector, the first output terminal of the power access circuit 110 is electrically connected to the first input terminal of the first output circuit 120, the second output terminal of the power access circuit 110 is electrically connected to the second input terminal of the first output circuit 120, the output terminal of the first output circuit 120 is electrically connected to the input terminal of the voltage conversion circuit 130, the power access circuit 110 accesses and transmits the first power source or the second power source to the first output circuit 120, the first output circuit 120 outputs the electrical signal transmitted by the power access circuit 110, the voltage conversion circuit 130 converts the voltage of the electrical signal transmitted by the power access circuit 110. The power supply redundancy board 100 disclosed by the invention adopts a mode of being detachably connected with a power supply, only a single fault part needs to be replaced during maintenance, and the power supply redundancy board can be placed at different positions of a case as required, so that the purpose of convenient maintenance can be achieved.
Specifically, referring to fig. 1 and 2, in one possible implementation, the power access circuit 110 accesses an external power source through a connector. For example, the power access circuit 110 includes a first power access unit and a second power access unit, the first power access unit is electrically connected to a first connector as a first input end of the power access circuit 110, the first connector is adapted to be electrically connected to a first power, the second power access unit is electrically connected to a second connector as a second input end of the power access circuit 110, the second connector is adapted to be electrically connected to a second power, wherein an output of the first power is 12V, an output of the second power is also 12V, the first power and the second power are both electrically connected to the power access circuit 110 through a 4-pin connector, the 4-pin connector may be VH3.96-4P, and the first power access unit and the second power access unit respectively output 12V _ in _1 and 12V _ in _ 2.
Further, referring to fig. 3, in a possible implementation manner, the first output circuit 120 includes an access chip D3, a first input pin of the access chip D3 is electrically connected to a first input terminal of the first output circuit 120 and a first output terminal of the power access circuit 110, a second input pin of the access chip D3 is electrically connected to a second output terminal of the power access circuit 110 as a second input terminal of the first output circuit 120, and an output pin of the access chip D3 is electrically connected to an input terminal of the voltage conversion circuit 130 as an output terminal of the first output circuit 120. For example, the access chip D3 is SBLB25L30CT, a first pin and a second pin of the access chip D3 are respectively accessed to 12V _ in _1 and 12V _ in _2, and a third pin of the access chip D3 outputs a 12V electrical signal. When one power supply fails, the other power supply can take over its operation immediately.
Further, referring to fig. 3, in a possible implementation manner, the power access circuit 110 further includes a first capacitor C9, a second capacitor C11, and a polarity capacitor C10, and the first capacitor C9, the second capacitor C11, and the polarity capacitor C10 are connected in parallel between the output pin of the access chip D3 and the ground terminal. For example, the first capacitor C9 is 0.1uF, the second capacitor C11 is 10uF, and the polar capacitor C10 is 470 uF.
Further, referring to fig. 4, in a possible implementation manner, the voltage converting circuit 130 includes a converting chip U1, a first resistor R2, a second resistor R4, a third capacitor C14, and an inductor L9, an input terminal of the converting chip U1 is electrically connected to the first output circuit 120 as an input terminal of the voltage converting circuit 130, a boost pin of the converting chip U1 is electrically connected to one end of the first resistor R2, another end of the first resistor R2 is electrically connected to one end of the third capacitor C14, another end of the third capacitor C14 is electrically connected to one end of the inductor L9, an output terminal of the converting chip U1 is electrically connected to one end of the inductor L9, a feedback terminal of the converting chip U1 is electrically connected to one end of the second resistor R4, and another end of the second resistor R4 is electrically connected to another end of the inductor L9. For example, the conversion chip U1 is an APW7318, the VIN pin of the chip is an input terminal, the VIN pin is connected to the 12V electrical signal of the power access circuit 110, and converts the 12V electrical signal into a 5V electrical signal, where the resistance of the first resistor R2 may be 0, the resistance of the second resistor R4 may be 40.5k Ω, the resistance of the third capacitor C14 may be 4.7Uf, and the inductance L9 may be 4.7 uH.
Further, referring to fig. 4, in a possible implementation manner, the voltage converting circuit 130 further includes a fourth capacitor C16, a fifth capacitor C17, a sixth capacitor C19, and a seventh capacitor C20, and the fourth capacitor C16, the fifth capacitor C17, the sixth capacitor C19, and the seventh capacitor C20 are connected in parallel between the other end of the inductor L9 and the ground terminal. The fourth capacitor C16 and the fifth capacitor C17 are both 22uF, and the sixth capacitor C19 and the seventh capacitor C20 are both 0.1 uF.
Further, referring to fig. 3 and 6, in a possible implementation, the output end of the first output circuit 120 is electrically connected to a first connector P3, a second connector J17 and a third connector J18, a first magnetic bead FB1 is disposed between the first output circuit 120 and the second connector J17, a second magnetic bead FB2 is disposed between the first output circuit 120 and the third connector J18, the first connector P3 is a 4-pin connector, and the second connector J17 and the third connector J18 are both 3-pin connectors. For example, the access chip D3 is SBLB25L30CT, the first pin and the second pin of the access chip D3 are respectively connected to 12V _ in _1 and 12V _ in _2, the third pin of the access chip D3 outputs a 12V electrical signal, the third pin of the access chip D3 is connected to the first connector P3, the first connector P3 is a 4-pin connector and outputs a 12V electrical signal, meanwhile, the third pin of the access chip D3 is connected to the second connector J17 and the third connector J18, the third pin of the access chip D3 and the second connector J17 are provided with the first magnetic bead FB1, and the third pin of the access chip D3 and the third connector J18 are provided with the second magnetic bead FB2, where the model number of the magnetic bead may be MPZ2012S601ATD25, the second connector J17 and the third connector J18 may use the HDR connector with 1 × 3 specification.
Further, referring to fig. 5, in a possible implementation manner, the output end of the voltage conversion circuit 130 is electrically connected with a fourth connector P4 and a fifth connector P5, and the fourth connector P4 and the fifth connector P5 are both 2-pin connectors. For example, the conversion chip U1 is an APW7318, the VIN pin of the chip is an input terminal, the VIN pin is connected to the 12V electrical signal of the power access circuit 110 and converts the 12V electrical signal into a 5V electrical signal, and the fourth connector P4 and the fifth connector P5 are both connected to 5V electrical signals and are both 2-pin connectors.
It should be noted that, although the power redundancy board 100 of the present disclosure has been described above by way of example in the above-described respective embodiments, those skilled in the art will appreciate that the present disclosure should not be limited thereto. In fact, the user can flexibly set the power redundancy board 100 according to personal preference and/or actual application scenarios as long as the functions are achieved.
Thus, by including the power access circuit 110, the first output circuit 120, and the voltage converting circuit 130, the first input terminal of the power access circuit 110 is electrically connected to the first connector to be adapted to be electrically connected to the first power source through the first connector, the second input terminal of the power access circuit 110 is electrically connected to the second connector to be adapted to be electrically connected to the second power source through the second connector, the first output terminal of the power access circuit 110 is electrically connected to the first input terminal of the first output circuit 120, the second output terminal of the power access circuit 110 is electrically connected to the second input terminal of the first output circuit 120, the output terminal of the first output circuit 120 is electrically connected to the input terminal of the voltage converting circuit 130, the power access circuit 110 accesses and transmits the first power source or the second power source to the first output circuit 120, the first output circuit 120 outputs the electrical signal transmitted by the power access circuit 110, the voltage conversion circuit 130 converts the voltage of the electrical signal transmitted by the power access circuit 110. The power supply redundancy board 100 disclosed by the invention adopts a mode of being detachably connected with a power supply, only a single fault part needs to be replaced during maintenance, and the power supply redundancy board can be placed at different positions of a case as required, so that the purpose of convenient maintenance can be achieved.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (9)
1. A power supply redundancy board is characterized by comprising a power supply access circuit, a first output circuit and a voltage conversion circuit;
the first input end of the power supply access circuit is electrically connected with a first connector so as to be suitable for being electrically connected with a first power supply through the first connector;
the second input end of the power supply access circuit is electrically connected with a second connector so as to be suitable for being electrically connected with a second power supply through the second connector;
the first output end of the power supply access circuit is electrically connected with the first input end of the first output circuit;
the second output end of the power supply access circuit is electrically connected with the second input end of the first output circuit;
the output end of the first output circuit is electrically connected with the input end of the voltage conversion circuit;
the power supply access circuit accesses the first power supply or the second power supply and transmits the first power supply or the second power supply to the first output circuit;
the first output circuit outputs the electric signal transmitted by the power access circuit;
and the voltage conversion circuit converts the voltage of the electric signal transmitted by the power access circuit.
2. The power redundancy board of claim 1, wherein the power access circuit comprises a first power access unit and a second power access unit;
the first power supply access unit is used as a first input end of the power supply access circuit and is electrically connected with the first connector;
the second power supply access unit is used as a second input end of the power supply access circuit and is electrically connected with the second connector.
3. The power redundancy board of claim 1, wherein the first output circuit comprises an access chip;
a first input pin of the access chip is used as a first input end of the first output circuit and is electrically connected with a first output end of the power supply access circuit;
a second input pin of the access chip is used as a second input end of the first output circuit and is electrically connected with a second output end of the power supply access circuit;
and the output pin of the access chip is used as the output end of the first output circuit and is electrically connected with the input end of the voltage conversion circuit.
4. The power redundancy board of claim 3, wherein the power access circuit further comprises a first capacitor, a second capacitor, and a polarity capacitor;
the first capacitor, the second capacitor and the polar capacitor are connected in parallel between an output pin and a grounding end of the access chip.
5. The power redundancy board of claim 1, wherein the voltage conversion circuit comprises a conversion chip, a first resistor, a second resistor, a third capacitor, and an inductor;
the input end of the conversion chip is used as the input end of the voltage conversion circuit and is electrically connected with the first output circuit;
the booster pin of the conversion chip is electrically connected with one end of the first resistor;
the other end of the first resistor is electrically connected with one end of the third capacitor;
the other end of the third capacitor is electrically connected with one end of the inductor;
the output end of the conversion chip is electrically connected with one end of the inductor;
the feedback end of the conversion chip is electrically connected with one end of the second resistor;
the other end of the second resistor is electrically connected with the other end of the inductor.
6. The power redundancy board of claim 5, wherein the voltage conversion circuit further comprises a fourth capacitor, a fifth capacitor, a sixth capacitor, and a seventh capacitor;
the fourth capacitor, the fifth capacitor, the sixth capacitor and the seventh capacitor are connected in parallel between the other end of the inductor and a ground terminal.
7. The power supply redundancy board of claim 1, wherein the output terminal of the first output circuit is electrically connected with a first connector, a second connector and a third connector;
a first magnetic bead is arranged between the first output circuit and the second connector;
a second magnetic bead is arranged between the first output circuit and the third connector;
the first connector is a 4-pin connector;
the second connector and the third connector are both 3-pin connectors.
8. The power supply redundancy board of claim 1, wherein the output terminal of the voltage conversion circuit is electrically connected with a fourth connector and a fifth connector;
the fourth connector and the fifth connector are both 2-pin connectors.
9. The power redundancy board of claim 1, wherein the power conversion circuit is switched in a 12V power supply;
the power conversion circuit outputs a 5V electric signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110359464.1A CN112952991A (en) | 2021-04-02 | 2021-04-02 | Power supply redundant board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110359464.1A CN112952991A (en) | 2021-04-02 | 2021-04-02 | Power supply redundant board |
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| CN112952991A true CN112952991A (en) | 2021-06-11 |
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| CN202110359464.1A Pending CN112952991A (en) | 2021-04-02 | 2021-04-02 | Power supply redundant board |
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| CN111964672A (en) * | 2020-08-08 | 2020-11-20 | 武汉利科夫科技有限公司 | Inertia/geomagnetic combined navigation system low-noise measurement circuit based on three-axis TMR sensor |
| CN214479824U (en) * | 2021-04-02 | 2021-10-22 | 北京东大金智科技有限公司 | Power supply redundant board |
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| JP2000333384A (en) * | 1999-05-24 | 2000-11-30 | Fujitsu Ltd | Redundant power supply protection circuit |
| US20080266791A1 (en) * | 2007-04-27 | 2008-10-30 | Delta Electronics (Thailand) Public Co., Ltd. | Redundant power supply system |
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