A power supply module, a voltage equalizing device and electronic equipment
A power module and voltage technology, applied in the direction of output power conversion devices, electrical components, etc., can solve the problems of reliability risk of output electrolytic capacitors, overvoltage of output electrolytic capacitors, etc., and achieve the effect of avoiding voltage redundancy design
Active Publication Date: 2021-10-01
SHENZHEN WINLINE TECH
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Problems solved by technology
In the prior art, in a system in which N power modules are output in series, if the output voltage of one of the power modules drops, the total voltage output by the series system will be directly divided to the output ports of the remaining N-1 modules. , when the output port is not designed with an anti-reverse circuit, the voltage will be directly fed back to the output electrolytic capacitor of the module, resulting in overvoltage of the output electrolytic capacitor
Such a system design will cause serious reliability risks to the output electrolytic capacitors of other modules when a single module has a short-circuit fault.
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[0026] Those skilled in the art will understand that the singular forms "a", "an" and "the" used herein may also include plural forms unless otherwise stated. It should be further understood that the word "comprising" used in the description of the present application refers to the presence of features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, Steps, operations, elements, components and / or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Additionally, "connected" or "coupled" as used herein may include wireless connection or wireless coupling. The expression "and / or" used herein includes all or any elements and all combinations of one or more associated listed items. "Multiple" in this applic...
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The present application provides a power supply module, a voltage equalizing device and electronic equipment, the power supply module is a first power supply module, and the first power supply module is configured with a first input port, a second input port, a first output port, The second output port and the first communication port, the first module includes a power management circuit. When the present application detects a fault through the power management circuit, it determines the first difference of its own voltage drop, generates a first voltage compensation signal or a second voltage compensation signal according to the first difference, and then sends it to the second power supply module, so that the second power module increases the voltage according to the first voltage compensation signal or the second voltage compensation signal, and controls the second power module to actively increase the output voltage, so that the total voltage in the series system remains unchanged. Avoid voltage kickback while realizing the voltage redundancy design of the series system.
Description
technical field [0001] The present application relates to the field of series power supplies, in particular to a power supply module, a voltage equalizing device and electronic equipment. Background technique [0002] At present, in higher voltage application scenarios, it is necessary to connect the outputs of the power modules in series. In the prior art, in a system in which N power modules are output in series, if the output voltage of one of the power modules drops, the total voltage output by the series system will be directly divided to the output ports of the remaining N-1 modules. , when the output port is not designed with an anti-reverse circuit, the voltage will be directly fed back to the output electrolytic capacitor of the module, resulting in overvoltage of the output electrolytic capacitor. Such a system design will cause serious reliability risks to the output electrolytic capacitors of other modules when a single module has a short-circuit fault. [0003...
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IPC IPC(8): H02M1/32
CPCH02M1/32
Inventor 范锋张凯旋张海东踪成林范桂杰黄钰森朱建国
Owner SHENZHEN WINLINE TECH