CN203595958U - N+1 redundant power source load balancing circuit based on CPCI interface - Google Patents
N+1 redundant power source load balancing circuit based on CPCI interface Download PDFInfo
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- CN203595958U CN203595958U CN201320742186.9U CN201320742186U CN203595958U CN 203595958 U CN203595958 U CN 203595958U CN 201320742186 U CN201320742186 U CN 201320742186U CN 203595958 U CN203595958 U CN 203595958U
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Abstract
The utility model provides an N+1 redundant power source load balancing circuit based on a CPCI interface, and belongs to the fields of telecommunication, industry, military projects and the like. The N+1 redundant power source load balancing circuit structurally comprises a CPCI power plate and further comprises a current balancing controller and a load current balancing line. Each output end of the CPCI power plate is connected with the load end through the current detecting end, the current detecting ends are then connected with the current balancing controller, and the current balancing controller is then respectively connected with the load ends, the internal output end of the CPCI power plate and the CPCI power plate. Compared with the prior art, load balancing of the output ends is achieved, the problem that certain CPCI power plate cards are overheated due to inconsistent loads is solved, the service life of CPCI power sources is greatly prolonged, and meanwhile safe, reliable and stable work of electric equipment is guaranteed.
Description
Technical field
The utility model relates to power module field, specifically a kind of load balance circuit of the N+1 redundant power based on CPCI interface.
Background technology
CPCI (full name Compact PCI) power interface is a kind of standard interface, CPCI power supply can be exported input direct voltage the CPCI standard interface power supply of 12V, 5V, 3.3V, 5VSB after voltage adjustment, and it has been widely recognized in fields such as telecommunications, industry, military projects.
In the time that use has the CPCI power panel of N+1 redundancy feature, because different CPCI power panel output end voltages can exist small difference, cause the output end current of every CPCI power panel to occur inconsistent phenomenon, the excessive CPCI power panel thermal value of load current is large like this, thereby the life-span also shortens greatly, and some CPCI power panel load kicks the beam, cause the wasting of resources, these have all reduced the stability of system.
Summary of the invention
Technical assignment of the present utility model is for the deficiencies in the prior art, and a kind of load balance circuit of reasonable in design, the N+1 redundant power based on CPCI interface that result of use is good is provided.
The utility model solves the technical scheme that its technical matters adopts:
A kind of load balance circuit of the N+1 redundant power based on CPCI interface, comprise CPCI power panel, also comprise equalizing controller and load current equalizer, each road output terminal of CPCI power panel is connected with load end by current detecting end, current detecting end is connected with equalizing controller again, and equalizing controller is connected with load end, CPCI power panel internal output terminal, CPCI power panel respectively again.
A load balance circuit for N+1 redundant power based on CPCI interface, it is between equalizing controller and load end, be in series with respectively resistance between equalizing controller and CPCI power panel internal output terminal.
Compared with prior art, the beneficial effect producing is the utility model:
Can be used for having in the CPCI power panel of N+1 redundancy feature, in the time of the collaborative work of polylith CPCI power panel, realize the load balancing of output terminal; In consumer, when two or polylith CPCI power panel co-operation, this load balance circuit can make the electric current of each CPCI power supply board output terminal substantially equal, adjustment precision is accurate, avoid due to the inconsistent overheated problem of some CPCI power supply board causing of load, greatly extend the serviceable life of CPCI power supply, also guaranteed that consumer is safe and reliable stably to work simultaneously.
Accompanying drawing explanation
Accompanying drawing 1 is principle schematic of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail below.
As shown in drawings, the load balance circuit of the N+1 redundant power based on CPCI interface of the present utility model, CPCI power panel output terminal arrives load end by sample circuit, the equalizing controller of output terminal by the inner output of sampling, signal conversion and CPCI power panel and load end output voltage relatively after, hold the Voltage Feedback place that feeds back to the each road of CPCI power supply power supply by adjustment, be used for adjusting the output of each board.
In the time that multiple CPCI power panels are operated in certain using electricity system together, output to the electric current of load by the sampling of current detecting end at each road output terminal of CPCI power panel, be converted into voltage signal and be input to equalizing controller after amplifier amplifies certain multiple, equalizing controller can by the load current equalizer on this signal and using electricity system backboard, (loadshare, load current equalizer be that each CPCI power panel links together by backboard.) on voltage compare, and the adjusted value after is relatively fed back to and adjusts end, directly act on the pressure feedback port of CPCI power panel inside, realize each CPCI power panel load balancing.In addition the pressure reduction between load terminal voltage and each power panel internal output terminal voltage can increase along with the increase of output end current, can be by the corrective action acting in conjunction of resistance R 1 and R2 in the adjustment end of equalizing controller, guarantee in the time that output current is larger, load terminal voltage still remains within the scope of rated output voltage.
Except the technical characterictic described in instructions, be those skilled in the art's known technology.
Claims (2)
1. the load balance circuit of the N+1 redundant power based on CPCI interface, comprise CPCI power panel, characterized by further comprising equalizing controller and load current equalizer, each road output terminal of CPCI power panel is connected with load end by current detecting end, current detecting end is connected with equalizing controller again, and equalizing controller is connected with load end, CPCI power panel internal output terminal, CPCI power panel respectively again.
2. the load balance circuit of a kind of N+1 redundant power based on CPCI interface according to claim 1, is characterized in that between equalizing controller and load end, is in series with respectively resistance between equalizing controller and CPCI power panel internal output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320742186.9U CN203595958U (en) | 2013-11-22 | 2013-11-22 | N+1 redundant power source load balancing circuit based on CPCI interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320742186.9U CN203595958U (en) | 2013-11-22 | 2013-11-22 | N+1 redundant power source load balancing circuit based on CPCI interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203595958U true CN203595958U (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320742186.9U Expired - Fee Related CN203595958U (en) | 2013-11-22 | 2013-11-22 | N+1 redundant power source load balancing circuit based on CPCI interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203595958U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410268A (en) * | 2014-12-23 | 2015-03-11 | 浪潮集团有限公司 | Method for realizing 900-W high-efficiency isolated power supply module |
| CN111342651A (en) * | 2020-04-01 | 2020-06-26 | 中国电子科技集团公司第五十四研究所 | Alternating current-direct current dual-input card-insertion type time system equipment power supply with electromagnetic compatibility and redundant output |
-
2013
- 2013-11-22 CN CN201320742186.9U patent/CN203595958U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410268A (en) * | 2014-12-23 | 2015-03-11 | 浪潮集团有限公司 | Method for realizing 900-W high-efficiency isolated power supply module |
| CN111342651A (en) * | 2020-04-01 | 2020-06-26 | 中国电子科技集团公司第五十四研究所 | Alternating current-direct current dual-input card-insertion type time system equipment power supply with electromagnetic compatibility and redundant output |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20161122 |