US-20260126843-A1 - POWER-DOWN HOLDING CIRCUIT FOR POWER SUPPLY COMPONENT, AND CONTROL METHOD AND CONTROL APPARATUS THEREFOR,AND SERVER POVER SUPPLY SYSTEM

US20260126843A1US 20260126843 A1US20260126843 A1US 20260126843A1US-20260126843-A1

Abstract

A power-down holding circuit for power supply component, and a control method and control apparatus therefor, and a server power supply system are provided. Multiple power supply components are provided, and the power supply component includes an input circuit and an output circuit. The power-down holding circuit includes: an input energy storage component electrically connected to output terminals of the input circuits of the multiple power supply components; an output energy storage component, including multiple output energy storage modules, where first terminals of the output energy storage modules are configured to be electrically connected to the input terminals of the output circuits in a one-to-one correspondence, and second terminals of the output energy storage modules are grounded; and an intermediate energy storage component, including an intermediate energy storage module and a first switch module.

Inventors

Deyang HUA
Lingyan Wang
Jianyu Li
Dongyu Zhang
An Wu

Assignees

SUZHOU METABRAIN INTELLIGENT TECHNOLOGY CO., LTD.

Dates

Publication Date: 20260507
Application Date: 20231226
Priority Date: 20230529

Claims (20)

1 . A power-down holding circuit for power supply component, wherein multiple power supply components are provided, the power supply component comprises an input circuit and an output circuit, an output terminal of the input circuit is electrically connected to an input terminal of the output circuit, and the power-down holding circuit comprises: an input energy storage component, wherein the input energy storage component is configured to be electrically connected to all the output terminals of the input circuits of the multiple power supply components; an output energy storage component, comprising multiple output energy storage modules, wherein first terminals of the output energy storage modules are configured to be electrically connected to the input terminals of the output circuits in a one-to-one correspondence, and second terminals of the output energy storage modules are grounded; and an intermediate energy storage component, comprising an intermediate energy storage module and a first switch module, wherein a first terminal of the intermediate energy storage module is configured to be electrically connected to all the output terminals of the multiple input circuits, a second terminal of the intermediate energy storage module is electrically connected to a first terminal of the first switch module and the first terminal of each output energy storage module, and a second terminal of the first switch module is grounded.
2 . The power-down holding circuit according to claim 1 , wherein the output energy storage component further comprises at least one of the following: multiple current limiting components, wherein the current limiting components are connected in series, in a one-to-one correspondence, to connection circuits between the output energy storage modules and the output circuits; and multiple voltage clamping components, wherein the multiple voltage clamping components are connected in parallel, each corresponding to two terminals of the output energy storage module.
3 . The power-down holding circuit according to claim 2 , wherein the current limiting component comprises a resistor, the voltage clamping component comprises a first diode, an anode of the first diode is electrically connected to the second terminal of the output energy storage module, and a cathode of the first diode is electrically connected to the first terminal of the output energy storage module.
4 . The power-down holding circuit according to claim 1 , wherein the output energy storage component further comprises: multiple third switch modules, wherein the second terminal of the intermediate energy storage module is electrically connected to the first terminal of the output energy storage module via the third switch module, and the third switch modules are in a one-to-one correspondence to the output energy storage modules.
5 . The power-down holding circuit according to claim 4 , wherein the third switch module comprises a second diode, an anode of the second diode is electrically connected to the second terminal of the intermediate energy storage module, and a cathode of the second diode is electrically connected to the first terminal of the output energy storage module.
6 . The power-down holding circuit according to claim 1 , wherein the multiple output energy storage modules are respectively a first output energy storage module, a second output energy storage module, . . . , an i-th output energy storage module, . . . , and an n-th output energy storage module, and the output energy storage component further comprises: n fourth switch modules, wherein the second terminal of the intermediate energy storage module is electrically connected to the first terminal of the first output energy storage module via a first fourth switch module, a first terminal of an i-th fourth switch module is electrically connected to a first terminal of an (i−1)-th output energy storage module, a second terminal of the i-th fourth switch module is electrically connected to the first terminal of the i-th output energy storage module, and 1<i≤n.
7 . The power-down holding circuit according to claim 6 , wherein the fourth switch module comprises at least one of the following: a third diode and a bidirectionally conductive switching tube.
8 . The power-down holding circuit according to claim 1 , wherein the power-down holding circuit further comprises: multiple transducer switch modules, wherein the transducer switch modules are connected in series in a one-to-one correspondence between the input circuits and the corresponding output circuits.
9 . The power-down holding circuit according to claim 1 , wherein the input energy storage component comprises: multiple input energy storage modules, wherein first terminals of the input energy storage modules are electrically connected to the output terminals of the input circuits in a one-to-one correspondence, and second terminals of the multiple input energy storage modules are grounded.
10 . The power-down holding circuit according to claim 9 , wherein the input energy storage module, the output energy storage module, and the intermediate energy storage module each comprise at least one of the following: a capacitor and an inductor.
11 . The power-down holding circuit according to claim 9 , wherein the input energy storage component further comprises: multiple second switch modules, wherein the first terminal of the intermediate energy storage module is configured to be electrically connected to all the input terminals of the multiple input circuits via the multiple second switch modules, and the second switch modules are in a one-to-one correspondence to the input terminals of the input circuits; and a shared energy storage module, wherein a first terminal of the shared energy storage module is electrically connected to the first terminal of the intermediate energy storage module, and a second terminal of the shared energy storage module is electrically connected to the second terminal of the first switch module.
12 . The power-down holding circuit according to claim 11 , wherein the first switch module and the second switch module each comprise one of the following: a transistor, a MOS transistor, and a thyristor, and the shared energy storage module comprises at least one of the following: a capacitor and an inductor.
13 . A control method implemented by the power-down holding circuit according to claim 12 , comprising: a first control step: controlling the power supply component to power on in a case that the power supply component operates normally, causing the output terminal of the input circuit to output a preset voltage and charge the input energy storage component; a second control step: controlling the first switch module to close in a case that the power supply component abnormally powers down, to charge the intermediate energy storage module; a third control step: controlling the first switch module to open in a case that the power supply component abnormally powers down and a charging duration for the intermediate energy storage module reaches a preset duration, causing the intermediate energy storage module to discharge, so as to charge at least part of the output energy storage module; and a cycling step: cyclically executing the second control step and the third control step a predetermined number of times until a voltage of the at least part of the output energy storage modules reaches a first preset voltage.
14 . The method according to claim 13 , wherein the input energy storage component comprises multiple input energy storage modules, first terminals of the input energy storage modules are electrically connected to the output terminals of the input circuits in a one-to-one correspondence, and second terminals of the multiple input energy storage modules are grounded; the input energy storage component further comprises: multiple second switch modules, wherein the first terminal of the intermediate energy storage module is configured to be electrically connected to all the input terminals of the multiple input circuits via the multiple second switch modules, and the second switch modules are in a one-to-one correspondence to the input terminals of the input circuits; and a shared energy storage module, wherein a first terminal of the shared energy storage module is electrically connected to the first terminal of the intermediate energy storage module, and a second terminal of the shared energy storage module is electrically connected to the second terminal of the first switch module; and the first control step comprises: controlling the power supply component to power on and controlling each second switch module to close, causing the output terminal of the input circuit to output the preset voltage, so as to charge each output energy storage module and the shared energy storage module.
15 . The method according to claim 13 , wherein the method further comprises: executing the cycling step in a case that the voltage of the at least part of the output energy storage module is less than a second preset voltage, until the voltage of the at least part of the output energy storage module reaches the first preset voltage, the first preset voltage being greater than the second preset voltage.
16 . The method according to claim 13 , wherein the power-down holding circuit further comprises multiple transducer switch modules, the transducer switch modules are connected in series in a one-to-one correspondence between the input circuits and the corresponding output circuits, and the method further comprises: controlling the first switch module to open in a case that part of the input circuit fails; and at least controlling a transducer switch module corresponding to the failed input circuit to close, causing a corresponding output energy storage module of the closed transducer switch module to discharge.
17 . The method according to claim 16 , wherein the multiple output energy storage modules are respectively a first output energy storage module, a second output energy storage module, . . . , an i-th output energy storage module, . . . , and an n-th output energy storage module; and the output energy storage component further comprises n fourth switch modules, wherein the second terminal of the intermediate energy storage module is electrically connected to the first terminal of the first output energy storage module via a first fourth switch module, a first terminal of an i-th fourth switch module is electrically connected to a first terminal of an (i−1)-th output energy storage module, a second terminal of an i-th fourth switch module is electrically connected to the first terminal of the i-th output energy storage module, and 1<i≤n; wherein the at least controlling a transducer switch module corresponding to the failed input circuit to close comprises: controlling the transducer switch module corresponding to the failed input circuit to close, the corresponding output energy storage module of the closed transducer switch module being a target energy storage module; and controlling at least one target switch module to close, the target switch module being a fourth switch module electrically connected to a first terminal of the target energy storage module, causing at least two of the output energy storage modules to discharge in parallel.
18 . The method according to claim 13 , wherein after the cycling step, the method further comprises: controlling the first switch module to open.
19 . (canceled)
20 . A server power supply system, comprising: multiple power supply components, wherein the power supply component comprises an input circuit and an output circuit, and an output terminal of the input circuit is electrically connected to an input terminal of the output circuit; the power-down holding circuit according to a power-down holding circuit for power supply component; wherein the power-down holding circuit comprises: an input energy storage component, wherein the input energy storage component is configured to be electrically connected to all the output terminals of the input circuits of the multiple power supply components; an output energy storage component, comprising multiple output energy storage modules, wherein first terminals of the output energy storage modules are configured to be electrically connected to the input terminals of the output circuits in a one-to-one correspondence, and second terminals of the output energy storage modules are grounded; and an intermediate energy storage component, comprising an intermediate energy storage module and a first switch module, wherein a first terminal of the intermediate energy storage module is configured to be electrically connected to all the output terminals of the multiple input circuits, a second terminal of the intermediate energy storage module is electrically connected to a first terminal of the first switch module and the first terminal of each output energy storage module, and a second terminal of the first switch module is grounded; and a controller, comprising a memory, a processor, and a computer program stored on the memory and executable by the processor, wherein the processor executes the steps of the method according to following actions when executing the computer program: a first control step: controlling the power supply component to power on in a case that the power supply component operates normally, causing the output terminal of the input circuit to output a preset voltage and charge the input energy storage component; a second control step: controlling the first switch module to close in a case that the power supply component abnormally powers down, to charge the intermediate energy storage module; a third control step: controlling the first switch module to open in a case that the power supply component abnormally powers down and a charging duration for the intermediate energy storage module reaches a preset duration, causing the intermediate energy storage module to discharge, so as to charge at least part of the output energy storage module; and a cycling step: cyclically executing the second control step and the third control step a predetermined number of times until a voltage of the at least part of the output energy storage modules reaches a first preset voltage.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application claims priority to Chinese Patent Application No. 202310617098.4, filed with the China National Intellectual Property Administration on May 29, 2023 and entitled “POWER-DOWN HOLDING CIRCUIT FOR POWER SUPPLY COMPONENT, AND CONTROL METHOD AND CONTROL APPARATUS THEREFOR”, which is incorporated herein by reference in its entirety. TECHNICAL FIELD Embodiments of this application relate to the field of server power supply, particularly to a power-down holding circuit for power supply component, a control method and control apparatus therefor, and a server power supply system. BACKGROUND With the rapid growth of high-performance computing applications such as artificial intelligence, machine learning, and big data mining, centralized computing and storage in data centers are booming. To meet these ever-increasing demands, a large number of large-scale data centers for data computation, processing, and storage have been built, and data centers are becoming critical infrastructure supporting the normal operation of modern society. Data security and device reliability are increasingly emphasized, leading to the rapid development and construction of high-level large-scale data centers with increasingly complex redundancy. To achieve high data security, the power supply systems need to have varying levels of power reliability, where higher requirements lead to increasing complexity of the power supply component systems. There are different redundancy structures from low to high reliability, with power supply components adopting 1+1 redundancy, N+1 redundancy, N+N redundancy, or even 2×(N+1) redundancy. Although multiple redundancies achieve high reliability, they also limit the power density and energy efficiency of the power supply systems. they cause significant waste in power supply system space and power consumption. SUMMARY Embodiments of this application provide a power-down holding circuit for power supply component, a control method and control apparatus therefor, and a server power supply system. According to an embodiment of this application, a power-down holding circuit for power supply component is provided, where multiple power supply components are provided, the power supply component includes an input circuit and an output circuit, an output terminal of the input circuit is electrically connected to an input terminal of the output circuit, and the power-down holding circuit includes: an input energy storage component, where the input energy storage component is configured to be electrically connected to all the output terminals of the input circuits of the multiple power supply components; an output energy storage component, including multiple output energy storage modules, where first terminals of the output energy storage modules are configured to be electrically connected to the input terminals of the output circuits in a one-to-one correspondence, and second terminals of the output energy storage modules are grounded; and an intermediate energy storage component, including an intermediate energy storage module and a first switch module, where a first terminal of the intermediate energy storage module is configured to be electrically connected to all the output terminals of the multiple input circuits, a second terminal of the intermediate energy storage module is electrically connected to a first terminal of the first switch module and the first terminal of each output energy storage module, and a second terminal of the first switch module is grounded. In some embodiments, the output energy storage component further includes at least one of the following: multiple current limiting components, where the current limiting components are connected in series, in a one-to-one correspondence, to connection circuits between the output energy storage modules and the output circuits; and multiple voltage clamping components, where the multiple voltage clamping components are connected in parallel, each corresponding to two terminals of the output energy storage module. In some embodiments, the current limiting component includes a resistor, the voltage clamping component includes a first diode, an anode of the first diode is electrically connected to the second terminal of the output energy storage module, and a cathode of the first diode is electrically connected to the first terminal of the output energy storage module. In some embodiments, the output energy storage component further includes multiple third switch modules, where the second terminal of the intermediate energy storage module is electrically connected to the first terminal of the output energy storage module via the third switch module, and the third switch modules are in a one-to-one correspondence to the output energy storage modules. In some embodiments, the third switch module includes a second diode, an anode of the second diode is electrically connected to the second terminal of the