CN102332747A - Short-circuit protection method for redundant power supply - Google Patents

Short-circuit protection method for redundant power supply Download PDF

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Publication number
CN102332747A
CN102332747A CN201110250061A CN201110250061A CN102332747A CN 102332747 A CN102332747 A CN 102332747A CN 201110250061 A CN201110250061 A CN 201110250061A CN 201110250061 A CN201110250061 A CN 201110250061A CN 102332747 A CN102332747 A CN 102332747A
Authority
CN
China
Prior art keywords
power supply
outlet
circuit
short
protection method
Prior art date
Application number
CN201110250061A
Other languages
Chinese (zh)
Inventor
翟西斌
于治楼
梁智豪
Original Assignee
浪潮电子信息产业股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浪潮电子信息产业股份有限公司 filed Critical 浪潮电子信息产业股份有限公司
Priority to CN201110250061A priority Critical patent/CN102332747A/en
Publication of CN102332747A publication Critical patent/CN102332747A/en

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Abstract

The invention provides a short-circuit protection method for a redundant power supply, belonging to the field of a circuit protection method. In the invention, by additionally arranging a unidirectional guide circuit device on an outlet of each power supply, an inlet of the unidirectional guide circuit device is connected with the outlet of the power supply; the outlet is connected with a server system and the unidirectional guide circuit device is provided with a control circuit; and the control circuit is respectively provided with an inlet monitoring point and an outlet monitoring point at the inlet and the outlet of the unidirectional guide circuit device. Compared with the prior art, the short-circuit protection method for the redundant power supply does not limit the power output of the power supply, can prevent the power supply from being returned and the like.

Description

A kind of short-circuit protection method of redundant power

Technical field

The present invention relates to a kind of circuit protection method, specifically a kind of short-circuit protection method of redundant power.

Background technology

Redundant power is a kind of power supply that is used in server and other systems, is made up of two or more duplicate power supplys, carries out load balancing, collaborative work by the chip controls power supply.When a power supply broke down, another power supply can be taken over its work, after changing power supply, was again two power supply collaborative works at once.Redundant power is in order to realize the high availability of server system.Except server, the drive bar system applies is also very extensive.

During the polylith power supply redundancy, certain block power supply short circuit, and the current reflux that causes other power supply short circuit power supply so far, thus influence the problem of whole system power supply.The solution of prior art is the device that the outlet of the power supply on every road adds a similar diode; Utilize the unidirectional conducting of diode to prevent that short circuit from refluxing, but diode has certain pressure drop, and can not walk too big electric current; When if power increases; Electric current increases, and the diode volume also can increase, and can increase product design difficulty and cost.

Summary of the invention

The invention provides a kind of short-circuit protection method of redundant power, have two-way or above power supply to carry out redundancy, through inner current-sharing, collaborative work is supplied power to system jointly.

The objective of the invention is to realize by following mode; Delivery outlet at every block power supply increases a unidirectional turning circuit device; The inlet of unidirectional turning circuit device is connected with power output; Outlet is connected with server system, on the Device in one-way on state circuit, control circuit is set, and control circuit is in the entrance and exit difference inlet porting monitoring point and outlet monitoring point of unidirectional turning circuit device.

Compare with prior art, when the invention solves the polylith power supply redundancy, certain block power supply short circuit, and the current reflux that causes other power supply short circuit power supply so far, thus influence the problem of whole system power supply.

Volume and cost can not increase with power, only can produce minimum pressure drop and through bigger electric current, can not let power output limited.

Description of drawings

Accompanying drawing 1 is a principle schematic of the present invention.

Embodiment

With reference to Figure of description to explanation at length below the work of the present invention.

Delivery outlet at every block power supply increases a unidirectional turning circuit device; The inlet of unidirectional turning circuit device is connected with power output; Outlet is connected with server system; On the Device in one-way on state circuit, control circuit is set, control circuit is in the entrance and exit difference inlet porting monitoring point and outlet monitoring point of unidirectional turning circuit device, and control circuit turns on and off controlled function to circuit monitoring and to unidirectional turning circuit device.

Power supply 1 is supplied power to system with power supply 2 simultaneously, and respectively through the short-circuit protection circuit device, electric current is through this device output, and electric current flows out from outlet from the inlet entering of circuit arrangement, and promptly electric current is only understood one-way flow.

Have very little pressure drop when electric current flows through circuit arrangement, promptly the voltage of entrance can be than the voltage of exit point more greatly; As when short circuit appears in power supply 1; The current reflux of power supply 2 is short circuit power supply 1 so far; Then the voltage of the exit point of power supply 1 can be bigger than the voltage of entrance; When the control circuit of power supply 1 detects its outlet voltage greater than inlet voltage, can control unidirectional turning circuit device and end, thereby prevent the power supply backflow.

Except that the described technical characterictic of specification, be the known technology of those skilled in the art.

Claims (1)

1. the short-circuit protection method of a redundant power; It is characterized in that increasing a unidirectional turning circuit device at the delivery outlet of every block power supply; The inlet of unidirectional turning circuit device is connected with power output; Outlet is connected with server system, on the Device in one-way on state circuit, control circuit is set, and control circuit is in the entrance and exit difference inlet porting monitoring point and outlet monitoring point of unidirectional turning circuit device.
CN201110250061A 2011-08-29 2011-08-29 Short-circuit protection method for redundant power supply CN102332747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110250061A CN102332747A (en) 2011-08-29 2011-08-29 Short-circuit protection method for redundant power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110250061A CN102332747A (en) 2011-08-29 2011-08-29 Short-circuit protection method for redundant power supply

Publications (1)

Publication Number Publication Date
CN102332747A true CN102332747A (en) 2012-01-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110250061A CN102332747A (en) 2011-08-29 2011-08-29 Short-circuit protection method for redundant power supply

Country Status (1)

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CN (1) CN102332747A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104199531A (en) * 2014-08-22 2014-12-10 山东超越数控电子有限公司 Method for decoupling short-circuit current of CPCI redundant power source
CN104184119B (en) * 2013-05-23 2017-10-27 卡特彼勒公司 The management for having short circuit from battery to ground is turned to
CN109917892A (en) * 2019-03-06 2019-06-21 苏州浪潮智能科技有限公司 A kind of server system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1128913A (en) * 1995-12-01 1996-08-14 任少康 High voltage electric power conversion method and apparatus thereof
CN201130864Y (en) * 2007-12-11 2008-10-08 广州南珠电控技术有限公司 Double-channel redundancy solar controller
CN101458553A (en) * 2007-12-13 2009-06-17 国际商业机器公司 Selecting between high availability redundant power supply modes for powering a computer system
CN102055206A (en) * 2009-10-30 2011-05-11 通用电气公司 Hybrid wind-solar inverters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1128913A (en) * 1995-12-01 1996-08-14 任少康 High voltage electric power conversion method and apparatus thereof
CN201130864Y (en) * 2007-12-11 2008-10-08 广州南珠电控技术有限公司 Double-channel redundancy solar controller
CN101458553A (en) * 2007-12-13 2009-06-17 国际商业机器公司 Selecting between high availability redundant power supply modes for powering a computer system
CN102055206A (en) * 2009-10-30 2011-05-11 通用电气公司 Hybrid wind-solar inverters

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104184119B (en) * 2013-05-23 2017-10-27 卡特彼勒公司 The management for having short circuit from battery to ground is turned to
CN104199531A (en) * 2014-08-22 2014-12-10 山东超越数控电子有限公司 Method for decoupling short-circuit current of CPCI redundant power source
CN109917892A (en) * 2019-03-06 2019-06-21 苏州浪潮智能科技有限公司 A kind of server system

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Application publication date: 20120125

C02 Deemed withdrawal of patent application after publication (patent law 2001)