WO2016045559A1 - Système d'alimentation électrique prenant en charge la relève avec redondance et la connexion à chaud - Google Patents

Système d'alimentation électrique prenant en charge la relève avec redondance et la connexion à chaud Download PDF

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Publication number
WO2016045559A1
WO2016045559A1 PCT/CN2015/090118 CN2015090118W WO2016045559A1 WO 2016045559 A1 WO2016045559 A1 WO 2016045559A1 CN 2015090118 W CN2015090118 W CN 2015090118W WO 2016045559 A1 WO2016045559 A1 WO 2016045559A1
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WO
WIPO (PCT)
Prior art keywords
power supply
control switch
unit
voltage
supply system
Prior art date
Application number
PCT/CN2015/090118
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English (en)
Chinese (zh)
Inventor
吴新祥
Original Assignee
邦彦技术股份有限公司
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Publication of WO2016045559A1 publication Critical patent/WO2016045559A1/fr

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Classifications

    • 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

Definitions

  • the present invention relates to a redundant power supply, and more particularly to a power supply system that supports redundant backup and hot swap.
  • FIG. 1 is a schematic structural diagram of a dual power supply system in the prior art, as shown in FIG. The board and the back board are powered by a power supply 1 and a power supply. Two power supply systems are used to implement redundancy backup.
  • the main drawback of this method is that each power supply system must have a current sharing function, but currently, there are quite a few on the market.
  • Another technique is to add a monitoring system.
  • the drawback of this method is that the system is complicated to implement.
  • the power switching of the dual power system is not realized by the power system itself, but by the passive switching of the monitoring system.
  • an object of the present invention is to provide a power supply system that supports redundant backup and hot swap.
  • a power supply system supporting redundancy backup and hot swap comprising at least two power supply systems, the power supply system comprising:
  • Power supply unit it is used to generate a working voltage
  • a first control switch the output for controlling the operating voltage of the power supply unit
  • a second control switch located between the first control switch and the load line for separating the voltage on the load line from the voltage of the power supply unit;
  • a first controllable switch drive unit configured to control an open and close state of the first control switch
  • a second control switch driving unit configured to control opening and closing of the second control switch
  • a voltage comparison unit configured to compare a voltage generated by the power supply unit with a load voltage to output a switch opening and closing control voltage to the first control switch driving unit, and drive the first control switch driving unit output signal to control the first control switch Closed state
  • the first sampling unit is configured to: when the power supply unit has a voltage output, output a sampling voltage from the output voltage of the power supply unit to the first control switch driving unit, and drive the first control switch driving unit to send a signal to lock the first control.
  • the on state of the switch
  • the second sampling unit is configured to output a sampling voltage from the output voltage of the power supply unit to the second control switch driving unit, and drive the second control switch driving unit to send a signal to control the conduction state of the second control switch.
  • the first control switch driving unit comprises: an OR gate circuit and a driving circuit
  • the OR gate circuit is configured to open and close a control voltage of the first control switch output by the voltage comparison unit and the first sampling The sampling voltage outputted by the unit is ORed; the driving circuit outputs a signal to the first control switch according to the OR operation result, and controls the opening and closing state of the first control switch.
  • the voltage comparison unit includes a comparator; the non-inverting input terminal of the comparator is connected to the power supply unit through a resistor, and is connected to the ground potential through a resistor;
  • the inverting input of the comparator is connected to the load through a resistor and is connected to the ground potential through a resistor.
  • the first sampling unit is a sampling resistor.
  • the OR gate circuit of the first control switch driving unit includes a common cathode diode; the driving circuit of the first control switch driving unit includes an NPN transistor; and two bases of the common cathode diode and the voltage respectively a comparison unit, a first sampling unit is connected; an emitter of the double diode is connected to a base of the NPN transistor; an emitter of the NPN transistor is connected to a ground potential; and a collector of the NPN transistor passes through a resistor and the The first control switch is connected.
  • the first control switch unit includes: a PMOS switch tube; a source and a drain of the PMOS switch tube are connected through a resistor; a gate of the PMOS switch tube is driven by the first control switch a unit is connected; a source of the PMOS switch tube is connected to the power supply unit, and a drain of the PMOS switch tube is connected to a load.
  • the second sampling unit is a sampling resistor.
  • the second control switch driving unit includes an NPN transistor; a base of the NPN transistor is connected to the second sampling unit; and a collector of the NPN transistor is connected to the second control switch unit through a resistor; The base and emitter of the NPN transistor are connected by a resistor; the emitter of the NPN transistor is connected to a ground potential.
  • the second control switch unit includes: a PMOS switch tube, a source of the PMOS switch tube is connected to a load, and a drain of the PMOS switch tube is the first control switch unit;
  • a gate of the PMOS switch is connected to the second control switch driving unit; a source and a gate of the PMOS switch are connected through a resistor; and a drain and a gate of the PMOS switch are connected A diode is connected in series; a cathode of the diode is connected to a drain of the PMOS switch, and a cathode thereof is connected to a gate of the PMOS switch through a resistor.
  • the utility model has the beneficial effects that the power supply system supporting the redundant backup and hot plugging comprises at least two power supply systems, and the power supply system can automatically switch the power supply when the power supply system has no current sharing.
  • the present invention is provided with a redundant backup and hot swap circuit between the relevant DC power supply system and the load, and the switching of the power supply system is actively implemented by the power system itself, without the need for an external monitoring system, realizing redundancy and Backup function.
  • FIG. 1 is a schematic structural view of a dual power supply system in the prior art
  • FIG. 2 is a schematic structural diagram of a power supply system according to the present invention.
  • FIG. 3 is a schematic structural diagram of a circuit of a specific embodiment of a power supply system according to the present invention.
  • FIG. 4 is a schematic structural diagram of a specific embodiment of a power supply system supporting redundancy backup and hot swap according to the present invention.
  • the invention provides a power supply system supporting redundant backup and hot swap, and includes at least two power supply systems.
  • FIG. 2 is a structural block diagram of a power supply system supporting redundant backup and hot swap, as shown in FIG.
  • the power supply module includes: a power supply unit 1, a first control switch 2, a second control switch 3, a first controllable switch drive unit 5, a second control switch drive unit 8, a voltage comparison unit 4, a first sampling unit 6, and a Two sampling unit 7.
  • the power supply unit 1 is used to generate an operating voltage
  • the first control switch 2 is a main voltage control circuit, mainly for controlling an output of a working voltage of the power supply unit;
  • the second control switch 3 is located between the first control switch 3 and the load line for separating the voltage on the load line from the power supply unit voltage for related redundancy backup and hot plug function processing;
  • the first control switch driving unit 5 is configured to control an open and close state of the first control switch
  • the second control switch driving unit 8 is configured to control the opening and closing of the second control switch
  • the voltage comparison unit 4 is configured to compare the load line voltage with the power supply unit voltage, and then output the compared result to the first control switch driving unit 5 to control the opening and closing state of the first control switch 2;
  • the first sampling unit 6 is configured to sample whether the power supply unit 1 has a voltage output. When the power supply unit 1 has a voltage output, the sampling voltage is output from the output voltage of the power supply unit 1 to the first control switch driving unit 5, Driving the first control switch drive unit 5 sends a signal to lock the first control switch 2 so that it is always in the on state.
  • the first control switch driving unit 5 is configured to control the opening and closing state of the first control switch 2, and includes: an OR circuit 501 and a driving circuit 502; or a gate circuit 501 for the first control switch outputted by the voltage comparing unit 4
  • the opening and closing control voltage and the sampling voltage outputted by the first sampling unit 6 are ORed.
  • the driving circuit 502 outputs a signal to the first control switch 2 according to the OR operation result, and controls the opening and closing state of the first control switch 2. .
  • the second sampling unit 7 is configured to sample whether the power supply unit 1 has a voltage output.
  • the sampling voltage is output from the output voltage of the power supply unit 1 to the second control switch driving unit 8 to drive
  • the second control switch drive unit 8 sends a signal to control the conduction state of the second control switch 3.
  • FIG. 3 is a schematic structural diagram of a circuit of a power supply system according to the present invention, as shown in FIG. 3: in the embodiment, the voltage comparison unit 4 is implemented by a comparator U1; and the OR circuit 501 is implemented by a common cathode diode D1;
  • the driving circuit 502 is driven by the NPN transistor Q3; the first sampling unit 6 uses a sampling resistor R7 for voltage sampling; the second sampling unit uses a sampling resistor R8 for voltage sampling; and the second driving unit 8 uses NPN transistor Q4 for driving;
  • a control switch 2 uses a PMOS switch tube Q1 to implement the control switch; the second control switch 3 uses a PMOS switch tube Q2 to implement the control switch.
  • a DC 48V power supply is taken as an example, and other voltages are the same as the principles of the present invention, and will not be further described herein.
  • the inverting input terminal of the comparator U1 is connected to the load line through a resistor R1, that is, the +48VOUT network, and is connected to the ground potential through a resistor R4; the non-inverting input terminal of the comparator U1 is connected to the power supply unit 1 through a resistor R3 (ie +48V), connected to the ground potential through a resistor R4.
  • the two anodes of the common cathode diode D1 are respectively connected to the output end of the comparator U1 and one end of the sampling resistor R7, and the output end of the common cathode diode D1 is connected to the base of the NPN transistor Q3;
  • the emitter of the NPN transistor Q3 is connected to the ground potential, and the collector of the NPN transistor Q3 is connected to the gate of the PMOS switch transistor Q1 of the first control switch 2 via a resistor R6.
  • the source of the PMOS switch Q1 is connected to the power supply system 1, the source and the gate of the PMOS switch are connected through a resistor R5, and the drain of the PMOS switch Q1 is connected to the PMOS switch Q2 in the second control switch 3.
  • the drain is connected to the other end of the resistor R7 in the first sampling unit 6.
  • the source of the PMOS switch Q2 in the second control switch 3 is connected to the load; the source and the gate of the PMOS switch Q2 are connected through a resistor R10, and the drain and the gate of the PMOS switch Q2 are connected in series.
  • sampling resistor R8 One end of the sampling resistor R8 is connected to the drain of the PMOS switch transistor Q2, and the other end is connected to the base of the NPN transistor Q3 in the second driving unit 8.
  • the base and the emitter of the NPN transistor Q4 are connected through a resistor R11; the NPN transistor Q4 The emitter is connected to the ground potential; the emitter of the NPN transistor Q4 is connected to the gate of the PMOS switch Q2 through a resistor R12.
  • the power supply system is required to have redundant backup and hot plugging functions, that is, when one power supply system is working, another power supply system is in standby state, once the working power supply system fails.
  • the redundant power supply can supply power in time; in addition, in the event of a power supply system failure, in the case of continuous power, it is necessary to be able to insert and replace the power supply system that has failed from the AT or MT platform. Ok, at this time, there can be no power outage, which is what the hot plug function is.
  • FIG. 4 is a schematic structural diagram of a power supply system supporting redundancy backup and hot swap according to the present invention.
  • the specific implementation process of the redundancy backup and hot swap function of the present invention will be described below with reference to FIG. 4 .
  • two power supply systems are used to supply power to the device.
  • two or more voltage power supply modules can be used to supply power to the device.
  • the principle is the same as that in this embodiment. I will not repeat them here.
  • the following describes the implementation process of implementing redundancy backup and hot swap using two power supply systems.
  • the power supply system 1 first powers up the load, and the power supply system 2 is powered on.
  • the comparator U1 of the power supply system 1 checks that the load voltage is not, or is lower than the normal operating voltage. At this time, the comparator U1 outputs a high level, and the high level passes the OR gate.
  • the circuit 501, or the gate circuit 501 outputs a high level, and when the high level is applied to the driving circuit 502, the driving circuit 502 outputs a high level to the first control switch 1, and turns on the first control switch 2 to place the circuit in The ON state; once the first control switch 2 is in the ON state, the first sampling unit 6 outputs a high level, and the high level is input to the OR circuit 501, and the first control switch 2 is locked.
  • the second sampling unit 7 also outputs a high level to the second driving unit 8, and the second driving unit 8 will output a high level to the second control switch 3, and the second control switch 3 is turned on. And locking the on state of the second control switch 3, from the purpose of reaching the power supply system of the power supply.
  • the comparator U1 of the power supply system 2 compares the voltage generated by the power supply unit 1 with the voltage on the load line, and if the load voltage is within the normal operating voltage range, the comparator U1 outputs a low level, because the other output port of the OR circuit 501 is in the initial state, and is also low level, that is, the OR circuit 501 outputs a low level to the driving circuit 502, thereby controlling the first control switch 2 to be off.
  • the open state in this way, the power supply system 2 is disconnected from the load.
  • the OR circuit 501 Since the OR circuit 501 only has a high level, that is, outputs a high level, when the high level is applied to the driving circuit 502, The driving circuit 502 will output a high level to the first control switch 2, and turn on the first control switch 2 to make the circuit in an on state; once the first control switch 2 is in the on state, the first sampling unit 6 will The output is a high level, and the high level is input to the OR circuit 501, and the first control switch 2 is always turned on; at this time, the second sampling unit 7 also outputs a high level to the second drive. Unit 8, the second driving unit 8 will output a high level to the second control switch 3, turn on the second control switch 3, and lock the on state of the second control switch 3, thereby achieving redundancy backup, automatic The purpose of the switch.
  • the comparator U1 of the power supply system 2 immediately detects that the line voltage is lower than the normal operating voltage, and immediately outputs a high level, thereby turning on the first control switch 2, Second, the switch 3 is controlled because the power supply system 2 detects that the voltage drops outside the operating voltage range, and the time to turn on the first control switch 2 and the second control switch 3 is much shorter than the discharge of the capacitor to the normal operating voltage. Outside time, therefore, there will be no power outage on the line. At the same time, the voltage on the energy storage circuit does not fall below the voltage at which the spark is generated, and the power supply has been restored. In, there will be no spark occurs.
  • the hot-dial process of the power supply system 2 is the same as that of the power supply module 1, that is, the power is not turned off and generated. spark.
  • the power supply system 1 has been plugged into the platform device, and it is working, indicating that there is power on the load line; at this time, if the power supply system 2 is plugged in, because the power supply system 2 supplies power to the load, the load is checked first. The voltage on the line, if there is a normal working voltage on the load line, the power supply system 2 will not have any voltage output, and it is in the standby state, so it will not have any influence on the load power during the hot plug process.
  • the power supply system 2 is plugged into the platform device, and then the power supply system 1 is plugged in, because the implementation principle and circuit of the two power supply devices are identical, so when the power supply system 1 is plugged in, Any impact on the load power supply.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Sources (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

Système d'alimentation électrique prenant en charge la relève avec redondance et la connexion à chaud, comportant au moins deux systèmes d'alimentation électrique. Chaque système d'alimentation électrique comporte une unité (1) d'alimentation électrique, un premier commutateur (2) de commande, un deuxième commutateur (3) de commande, une première unité (5) d'actionnement de commutateur de commande, une deuxième unité (8) d'actionnement de commutateur de commande, une unité (4) de comparaison de tension, une première unité (6) d'échantillonnage et une deuxième unité (7) d'échantillonnage. À condition que le système d'alimentation électrique ne soit pas en partage de courant, une permutation d'alimentations électriques peut être réalisée automatiquement, et une fonction de relève avec redondance peut être obtenue; et la connexion à chaud est réalisée sans étincelle ni coupure d'alimentation, et aucune autre ligne de branchement auxiliaire n'est nécessaire, à l'exception du branchement de deux tensions de sortie entre les systèmes d'alimentation électrique. La permutation de systèmes d'alimentation électrique est mise en œuvre activement par le système d'alimentation électrique lui-même, aucun système de surveillance externe n'est nécessaire, et des fonctions de redondance et de relève véritables sont obtenues.
PCT/CN2015/090118 2014-09-22 2015-09-21 Système d'alimentation électrique prenant en charge la relève avec redondance et la connexion à chaud WO2016045559A1 (fr)

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CN201410486245.XA CN104319870B (zh) 2014-09-22 2014-09-22 一种支持冗余备份及热插拔的供电系统
CN201410486245.X 2014-09-22

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CN108258675A (zh) * 2018-03-29 2018-07-06 中国电子科技集团公司第四十三研究所 一种双直流电源输入的控制电路
CN108696110A (zh) * 2018-07-10 2018-10-23 魏德米勒电联接（上海）有限公司 一种低功耗滞环驱动装置及驱动方法
CN108803399A (zh) * 2017-05-02 2018-11-13 联合汽车电子有限公司 车辆控制器及其控制方法
CN109391253A (zh) * 2017-08-11 2019-02-26 湖南金杯新能源发展有限公司 双端双驱控制电路
CN110323931A (zh) * 2019-08-15 2019-10-11 荣信汇科电气技术有限责任公司 一种包含状态反馈功能的冗余触发电路
CN113725846A (zh) * 2020-05-26 2021-11-30 北京广利核系统工程有限公司 一种直流冗余供电系统
CN114301153A (zh) * 2020-09-22 2022-04-08 西安诺瓦星云科技股份有限公司 电源备份控制电路卡和led显示控制系统

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CN104319870B (zh) * 2014-09-22 2017-02-15 邦彦技术股份有限公司 一种支持冗余备份及热插拔的供电系统
TWI576815B (zh) 2015-12-10 2017-04-01 矽創電子股份有限公司 電源供應系統及方法
CN111158452B (zh) * 2020-01-20 2021-04-27 苏州浪潮智能科技有限公司 一种冗余的单输入电源系统
CN113541298A (zh) * 2021-06-23 2021-10-22 北京宇航系统工程研究所 一种供配电测控在线热插拔冗余系统
CN113541121B (zh) * 2021-07-13 2023-12-01 创维光电科技(深圳)有限公司 一种热插拔保护电路、插接装置、电子设备
CN114243886B (zh) * 2021-12-21 2023-10-10 威创集团股份有限公司 一种交流电输入冗余控制装置

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Publication number Priority date Publication date Assignee Title
CN108803399A (zh) * 2017-05-02 2018-11-13 联合汽车电子有限公司 车辆控制器及其控制方法
CN108803399B (zh) * 2017-05-02 2024-03-19 联合汽车电子有限公司 车辆控制器及其控制方法
CN109391253A (zh) * 2017-08-11 2019-02-26 湖南金杯新能源发展有限公司 双端双驱控制电路
CN108258675A (zh) * 2018-03-29 2018-07-06 中国电子科技集团公司第四十三研究所 一种双直流电源输入的控制电路
CN108696110A (zh) * 2018-07-10 2018-10-23 魏德米勒电联接（上海）有限公司 一种低功耗滞环驱动装置及驱动方法
CN108696110B (zh) * 2018-07-10 2024-02-27 魏德米勒电联接（上海）有限公司 一种低功耗滞环驱动装置及驱动方法
CN110323931A (zh) * 2019-08-15 2019-10-11 荣信汇科电气技术有限责任公司 一种包含状态反馈功能的冗余触发电路
CN110323931B (zh) * 2019-08-15 2024-05-10 荣信汇科电气股份有限公司 一种包含状态反馈功能的冗余触发电路
CN113725846A (zh) * 2020-05-26 2021-11-30 北京广利核系统工程有限公司 一种直流冗余供电系统
CN114301153A (zh) * 2020-09-22 2022-04-08 西安诺瓦星云科技股份有限公司 电源备份控制电路卡和led显示控制系统
CN114301153B (zh) * 2020-09-22 2024-05-10 西安诺瓦星云科技股份有限公司 电源备份控制电路卡和led显示控制系统

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