CN206259743U - Cold redundancy controls circuit and redundant power - Google Patents
Cold redundancy controls circuit and redundant power Download PDFInfo
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- CN206259743U CN206259743U CN201621188436.9U CN201621188436U CN206259743U CN 206259743 U CN206259743 U CN 206259743U CN 201621188436 U CN201621188436 U CN 201621188436U CN 206259743 U CN206259743 U CN 206259743U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model is related to a kind of cold redundancy control circuit and redundant power, to solve the problems, such as that it is low that existing redundant power has power utilization efficiency.This circuit includes being connected with power module outlet, for sampling and outputting voltage and the feedback circuit of output feedback signal；It is connected with the feedback circuit, for receiving the feedback signal, and regulates and controls the regulation circuit of the power module working condition according to bus voltage and the feedback signal；Be connected between the power module outlet and redundant power bus, for power module described in the working state control according to the power module whether be load supplying isolation circuit.
Description
Technical field
The utility model is related to redundant power field, and circuit and redundant electric are controlled more specifically to a kind of cold redundancy
Source.
Background technology
Redundant power is widely used in the equipment higher to reliability requirement such as server, router and interchanger.It is superfluous
In remaining power-supply system, two or more power modules are generally included, multiple power modules averagely undertake system loading.When
Two power module cooperations, and the total output loading of whole redundant power is left less than the 70% of each power module nominal load
When right, power utilization efficiency is low.The output voltage of one of power module should be adjusted to realize a power supply mould
Block undertakes all loads, and another power module is in holding state, during ensureing that power supply module breaks down, treats electromechanics
Source module can smoothly receive load to ensure that whole power-supply system can be used uninterruptedly, that is, realize cold redundancy function.
Utility model content
The technical problems to be solved in the utility model is, for the drawbacks described above of prior art, there is provided a kind of cold redundancy
Control circuit and redundant power.
The utility model solves the technical scheme that its technical problem used：A kind of cold redundancy control circuit is constructed, is used
In redundant power, including：
It is connected with power module outlet, for sampling and outputting voltage and the feedback circuit of output feedback signal；
It is connected with the feedback circuit, for receiving the feedback signal, and according to bus voltage and the feedback letter
The regulation circuit of number regulation and control power module working condition；
It is connected between the power module outlet and redundant power bus, for the work according to the power module
State control the power module whether be load supplying isolation circuit.
Preferably, also including being connected to stablize the power supply with the regulation circuit and the power module outlet
The equalizing control circuit of module output voltage and electric current.
Preferably, the feedback circuit includes first resistor, second resistance, the 4th resistance, the first electric capacity and the one or two
Pole pipe；
The positive pole of the power module outlet and first diode, the second end of first electric capacity and described
The second end connection of second resistance, the negative pole of first diode is connected with redundant power output end of main；First electricity
The first end of appearance is connected with the second end of the first resistor, the first end of the first resistor and the first of the second resistance
The first end connection of end and the 4th resistance；Second end of the 4th resistance is connected with the regulation circuit.
Preferably, the regulation circuit includes MCU, the 6th resistance, the 8th resistance, the 9th resistance, the second electric capacity, the 3rd electricity
Hold and the first metal-oxide-semiconductor；
Second end of the feedback pin of the MCU and the 4th resistance, the first end of the 6th resistance and described
The first end connection of the 8th resistance；Second end of the 6th resistance and the first end of second electric capacity and the 9th electricity
The first end connection of resistance；The second end connection reference ground of second electric capacity, second end and described first of the 9th resistance
The drain electrode connection of metal-oxide-semiconductor；Second end of the 8th resistance and the second end of the 3rd electric capacity and first metal-oxide-semiconductor
Source electrode connects reference ground；
The output pin of the MCU is connected with the first end of the 3rd electric capacity and the grid of first metal-oxide-semiconductor；Institute
The input pin for stating MCU is connected with redundant power bus, for data acquisition bus voltage；
When total output loading of the redundant power controls threshold value more than cold redundancy, each power module of redundant power
MCU output pin output high level, the power module outputting standard voltage, in normal operating conditions；
When total output loading of the redundant power be not more than cold redundancy control threshold value when, the redundant power one of them
The output pin output low level of power module MCU, one of power module output voltage is less than normal voltage, enters
Holding state.
Preferably, the equalizing control circuit includes：3rd resistor, the 5th resistance, the 7th resistance, the 4th electric capacity, second
Metal-oxide-semiconductor and triode；
The first end of the 7th resistance is sharing control signal input part, the second end of the 7th resistance and described the
The base stage connection of the first end of four electric capacity and the triode；The emitter stage of the triode and the first of the 5th resistance
End connection, the second end of the 5th resistance is connected with the drain electrode of second metal-oxide-semiconductor；The grid of second metal-oxide-semiconductor and institute
State the output pin connection of MCU；The second end connection reference ground of the source electrode of second metal-oxide-semiconductor and the 4th electric capacity；It is described
Second end of the first end of the colelctor electrode of triode and the 3rd resistor and the second resistance and first diode
Positive pole is connected；Second end of the 3rd resistor is connected with isolation circuit；
When the power module is in normal operating conditions, the second metal-oxide-semiconductor conducting, the equalizing control circuit is normal
Work；
When the power module is in holding state, the second metal-oxide-semiconductor shut-off, the equalizing control circuit does not work.
Preferably, the isolation circuit includes the second diode, positive pole and the power module of second diode
Output end is connected, and its negative pole is connected with the redundant power bus；
When the power module outputting standard voltage, second diode current flow, the power module is load supplying；
When the power module output voltage is less than normal voltage, the second diode cut-off；The power module is not
It is load supplying.
Preferably, the isolation circuit includes the 3rd metal-oxide-semiconductor, and the drain electrode of the 3rd metal-oxide-semiconductor is defeated with the power module
Go out end connection, its source electrode is connected with redundant power bus；
When the power module outputting standard voltage, the 3rd metal-oxide-semiconductor conducting, the power module is load supplying；
When the power module output voltage is less than normal voltage, the 3rd metal-oxide-semiconductor cut-off；The power module is not
Load supplying.
The utility model also provides a kind of redundant power, including at least two power modules, is provided with the power module
Above-mentioned cold redundancy control circuit.
Cold redundancy of the present utility model controls circuit, when judging to occur electricity redundancy condition according to bus voltage, starts cold
Redundant Control, the regulation circuit regulation output voltage of one of power module makes it below normal voltage, and isolation circuit is ended,
It is not load supplying to make the power module, in holding state.Regulation circuit receives the feedback signal of feedback circuit, anti-according to this
Feedback signal and bus voltage maintain its output voltage less than normal voltage, standby when the power module failure of independent power supply
Power module smoothly receives load, and whole redundant power output voltage excursion is small, and considerable influence will not be produced to load.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the theory diagram of the embodiment of the utility model redundant power one；
Fig. 2 is the cold redundancy electric operation control circuit figure of power module shown in Fig. 1.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.
Occurs the electricity that power supply maximum load capability causes much larger than actual loading in real work for redundant power
The low problem of source utilization ratio, the utility model proposes a kind of redundant power with cold redundancy control circuit.Fig. 1 shows
A kind of embodiment of the utility model redundant power, the redundant power includes two power modules, and each power module includes master
Circuit and cold redundancy control circuit.Main circuit generally includes input filter circuit and power-varying circuitry etc. (because part electricity
Road improvement not of the present utility model, so not shown in figure).As shown in figure 1, cold redundancy control circuit includes and power supply mould
Block output end is connected, for sampling and outputting voltage and the feedback circuit 2 of output feedback signal；It is connected with feedback circuit 2, for connecing
Feedback signal is received, and regulates and controls the regulation circuit 1 of power module working condition according to bus voltage and feedback signal；It is connected to electricity
Whether it is negative for the working state control power module according to power module between source module output end and redundant power bus
Carry the isolation circuit 4 of power supply.
The operation principle of foregoing circuit is as follows：
After redundant power starts, the first power module and second source module cooperation, two power modules are simultaneously
Load supplying.The connection load of redundant power bus, when loading bigger, bus voltage is higher.Preset in circuit 1 is adjusted
Cold redundancy controls threshold value, i.e. bus voltage value.The regulation circuit 1 of each power module is that can determine whether this according to bus voltage size
Situation of the redundant power with the presence or absence of electricity redundancy.
When in the absence of electricity redundancy, the regulation control power module normal work of circuit 1, outputting standard voltage, isolation electricity
Road 4 turns on, and power module is normally load supplying.
When there is electricity redundancy, start cold redundancy control, the regulation circuit 1 of one of power module adjusts the power supply
Module output voltage makes it below normal voltage, and isolation circuit 4 is ended, and power module is not load supplying, in holding state.
Regulation circuit 1 receives the feedback signal of feedback circuit 2, maintains its output voltage to be less than according to the feedback signal and bus voltage
Normal voltage.
When the power module failure of independent power supply, the regulation circuit 1 of standby power module judges certainly according to feedback signal
Body is in holding state, judges now power to the load according to bus voltage change, and the regulation regulation power supply module of circuit 1 is defeated
Go out voltage and be increased to normal voltage, isolation circuit 4 is turned on, and the power module smoothly receives load, be its power supply.
Because existing redundant power generally has voltage stabilizing, flow equalizing function, when regulation circuit 1 turns down the output electricity of power module
The regulation electrical voltage point that signal can influence cold redundancy to control is flowed during pressure, in circuit.So, cold redundancy control electricity of the present utility model
Also include being connected to the equal of stabilized power source module output voltage and electric current with regulation circuit 1 and power module outlet in road
Flow control circuit 3.The control of the modulated circuit 1 of the equalizing control circuit 3, when cold redundancy control is started, regulation circuit 1 is controlled
Equalizing control circuit 3 does not work, it is to avoid the regulation electrical voltage point of influence cold redundancy control.When power module normal work, regulation
Circuit 1 controls the normal work of equalizing control circuit 3.
Cold redundancy of the present utility model controls the circuit diagram of circuit one embodiment as shown in Figure 2.Cold redundancy control electricity
Road includes：Feedback circuit 2, regulation circuit 1, equalizing control circuit 3 and isolation circuit 4.
Feedback circuit 2 includes first resistor R1, second resistance R2, the 4th resistance R4, the first electric capacity C1 and the one or two pole
Pipe D1；The of the positive pole of power module outlet and the first diode D1, second end of the first electric capacity C1 and second resistance R2
Two ends connect, and the negative pole of the first diode D1 is connected with redundant power output end of main；The first end and first of the first electric capacity C1
The first of the second end connection of resistance R1, the first end of first resistor R1 and the first end of second resistance R2 and the 4th resistance R4
End connection；Second end of the 4th resistance R4 is connected with regulation circuit 1.
Regulation circuit 1 includes MCU, the 6th resistance R6, the 8th resistance R8, the 9th resistance R9, the second electric capacity C2, the 3rd electric capacity
C3 and the first metal-oxide-semiconductor Q1；
Second end of the feedback pin of MCU and the 4th resistance R4, the first end of the 6th resistance R6 and the 8th resistance R8's
First end is connected；Second end of the 6th resistance R6 is connected with the first end of the second electric capacity C2 and the first end of the 9th resistance R9；
The second end connection reference ground of the second electric capacity C2, second end of the 9th resistance R9 is connected with the drain electrode of the first metal-oxide-semiconductor Q1；8th electricity
The second end for hindering R8 is connected reference ground with second end of the 3rd electric capacity C3 and the source electrode of the first metal-oxide-semiconductor Q1；
The output pin of MCU is connected with the first end of the 3rd electric capacity C3 and the grid of the first metal-oxide-semiconductor Q1；The input of MCU
Pin is connected with redundant power bus, for data acquisition bus voltage；
When total output loading of redundant power controls threshold value more than cold redundancy, the MCU's of each power module of redundant power
Output pin exports high level, power module outputting standard voltage, in normal operating conditions；
When total output loading of redundant power is not more than cold redundancy control threshold value, the one of power module of redundant power
The output pin output low level of MCU, one of power module output voltage is less than normal voltage, into holding state.
Equalizing control circuit 3 includes：3rd resistor R3, the 5th resistance R5, the 7th resistance R7, the 4th electric capacity C4, the 2nd MOS
Pipe Q2 and triode Q3；
The first end of the 7th resistance R7 is sharing control signal input part, the second end and the 4th electric capacity C4 of the 7th resistance R7
First end and triode Q3 base stage connection；The emitter stage of triode Q3 is connected with the first end of the 5th resistance R5, and the 5th
Second end of resistance R5 is connected with the drain electrode of the second metal-oxide-semiconductor Q2；The grid of the second metal-oxide-semiconductor Q2 is connected with the output pin of MCU；The
The source electrode of two metal-oxide-semiconductor Q2 and the second end connection reference ground of the 4th electric capacity C4；The colelctor electrode of triode Q3 and 3rd resistor R3's
First end is connected with second end of second resistance R2 and the positive pole of the first diode D1；Second end of 3rd resistor R3 with isolate electricity
Road 4 connects；
When power module is in normal operating conditions, the second metal-oxide-semiconductor Q2 conductings, the normal work of equalizing control circuit 3；
When power module is in holding state, the second metal-oxide-semiconductor Q2 shut-offs, equalizing control circuit 3 does not work.
Isolation circuit 4 includes the second diode D2, and the positive pole of the second diode D2 is connected with power module outlet, and it is born
Pole is connected with redundant power bus；
When power module outputting standard voltage, the second diode D2 conductings, power module is load supplying；
When power module output voltage is less than normal voltage, the second diode D2 cut-offs；Power module is not load supplying.
Specifically, the operation principle of cold redundancy control circuit is as follows：
There is a cold redundancy control circuit in each power module.Cold redundancy control threshold value has been previously written in its MCU
And information of address bit of the power module in simultaneously electromechanical source.For example, the information of address bit of the first power module is 1, second
The address of power module is that information is 2.
After redundant power normal boot-strap shown in Fig. 1, power module output voltage Va is by main circuit (not shown)
There is provided, power module output voltage Va flows after second resistance R2, the 4th resistance R4 in feedback control loop are flowed through through 3rd resistor R3
To the feedback pin of MCU.Input (not shown in Fig. 2) the collection band of MCU carries bus voltage Vbus, when band carries bus voltage value
Threshold value is controlled more than the cold redundancy write in MCU, i.e., when in the absence of the situation of electricity redundancy.The output of each power module MCU
End OUT output high level, the first metal-oxide-semiconductor Q1 conductings, the lower inclined resistance of feedback circuit 2 for the 6th resistance R6, the 8th resistance R8 with
And the 9th resistance R9.Inclined resistance diminishes down, MCU be the voltage stabilization by feedback pin FB in 2.5V, output control signals to master
Power conversion circuit in circuit, power conversion circuit is by adjusting Duty ratio control power module output voltage Va for standard electric
Pressure 12V.Conducting voltage of the 12V normal voltages more than the second diode D2, the second diode D2 conductings, the power module is load
Power supply.
Because MCU output ends OUT exports high level, the second metal-oxide-semiconductor Q2 conductings, sharing control signal passes through triode Q3's
Colelctor electrode output control signal value power module outlet Va, realizes voltage stabilizing and flow stabilizing function.When power module outlet is to negative
When the circuit distance of load end (i.e. bus voltage output end) is more long, power attenuation will be produced.The now negative pole of the first diode D1
Terminal voltage is load terminal voltage, and positive pole terminal voltage is power module outlet voltage Va, and negative pole terminal voltage is less than positive pole terminal voltage,
First diode D1 is turned on.On 3rd resistor R3 produce differential pressure promote power module output voltage raise, and through 3rd resistor R3,
First diode D1 flows to load end, lifts the voltage of load end to make up the loss of electrical wiring generation more long.
Output loading reduction, then bus voltage reduction.When bus voltage controls threshold value less than or equal to cold redundancy, MCU
Judge the address bit of power module, this power module is placed in standby shape by the preceding power module MCU controls of address ranking order
State.In the present embodiment, the output end OUT output low levels of the MCU of the first power module, the first metal-oxide-semiconductor Q1 shut-offs, feedback electricity
The lower inclined resistance on road 2 is the 8th resistance R8.Inclined resistance becomes big down, and MCU is in 2.5V, output by the voltage stabilization of feedback pin FB
Power conversion circuit in control signal to main circuit, power conversion circuit turns down power module output electricity by adjusting dutycycle
Pressure Va is 11.6V.Conducting voltage of the 11.6V voltages less than the second diode D2, the second diode D2 cut-offs, the power module is not
It is load supplying, in holding state.May be appreciated when, the power module at this moment still in there is voltage output, simply by
Acted in the cut-off of the second diode D2, its voltage is exported to load.Second source module normally exports 12V voltages extremely
Load.
Because MCU output ends OUT exports low level, the second metal-oxide-semiconductor Q2 shut-offs, triode Q3 cut-offs, sharing control signal
Cannot be by triode Q3 output control signal value power module outlets Va.Now the negative pole terminal voltage of the first diode D1 is
Load terminal voltage 12V, positive pole terminal voltage is 11.6V for power module outlet voltage Va, and negative pole terminal voltage is more than positive terminal electricity
Pressure, the first diode D1 cut-offs.
When the power module failure of independent power supply, the MCU of standby power module judges itself positive place according to feedback signal
In holding state, judge now power to the load according to bus voltage change.The output end OUT output high level of MCU, first
Metal-oxide-semiconductor Q1 is turned on, and the lower inclined resistance of feedback circuit 2 is the 6th resistance R6, the 8th resistance R8 and the 9th resistance R9.Inclined resistance down
Diminish, MCU is, in 2.5V, to output control signals to the power conversion circuit in main circuit by the voltage stabilization of feedback pin FB,
Power conversion circuit is by adjusting Duty ratio control power module output voltage Va for normal voltage 12V.12V normal voltages are more than
The conducting voltage of the second diode D2, the second diode D2 conductings, the power module is load supplying.
In certain embodiments, from metal-oxide-semiconductor as isolation circuit 4.Specifically, the drain electrode of the 3rd metal-oxide-semiconductor and power supply mould
Block output end is connected, and its source electrode is connected with redundant power bus；
When power module outputting standard voltage, the conducting of the 3rd metal-oxide-semiconductor, power module is load supplying；
When power module output voltage is less than normal voltage, the cut-off of the 3rd metal-oxide-semiconductor；Power module is not load supplying.
It should be understood that can be judged according to other modes should be using which power module as standby standby electricity
Source, for example, the big power module of selection address sequential bits.
It should be understood that the power module of redundant power can have multiple, according to output loading and the relation of power source loads,
Judge whether electricity redundancy.When there is electricity redundancy, as needed, the output voltage of corresponding power module is adjusted, made
It is in holding state.
Cold redundancy of the present utility model controls circuit, when judging to occur electricity redundancy condition according to bus voltage, starts cold
Redundant Control, the regulation circuit regulation output voltage of one of power module makes it below normal voltage, and isolation circuit is ended,
It is not load supplying to make the power module, in holding state.Regulation circuit receives the feedback signal of feedback circuit, anti-according to this
Feedback signal and bus voltage maintain its output voltage less than normal voltage, standby when the power module failure of independent power supply
Power module smoothly receives load, and whole redundant power output voltage excursion is small, and considerable influence will not be produced to load.
It should be understood that above example only expresses preferred embodiment of the present utility model, its description is more specific
With it is detailed, but can not therefore and be interpreted as the limitation to the utility model the scope of the claims；It should be pointed out that for this area
Those of ordinary skill for, without departing from the concept of the premise utility, freedom can be carried out to above-mentioned technical characterstic
Combination, various modifications and improvements can be made, these belong to protection domain of the present utility model；Therefore, it is all with this practicality
The equivalents that new right is done and modification, all should belong to the covering scope of the utility model claim.
Claims (8)
1. a kind of cold redundancy controls circuit, for redundant power, it is characterised in that including：
It is connected with power module outlet, for sampling and outputting voltage and the feedback circuit of output feedback signal；
It is connected with the feedback circuit, for receiving the feedback signal, and is adjusted according to bus voltage and the feedback signal
Control the regulation circuit of the power module working condition；
It is connected between the power module outlet and redundant power bus, for the working condition according to the power module
Control the power module whether be load supplying isolation circuit.
2. cold redundancy according to claim 1 controls circuit, it is characterised in that also including adjusting circuit and institute with described
State the equalizing control circuit that power module outlet is connected to stablize the power module output voltage and electric current.
3. cold redundancy according to claim 2 control circuit, it is characterised in that the feedback circuit include first resistor,
Second resistance, the 4th resistance, the first electric capacity and the first diode；
Positive pole of the power module outlet with first diode, the second end of first electric capacity and described second
The second end connection of resistance, the negative pole of first diode is connected with redundant power output end of main；First electric capacity
First end is connected with the second end of the first resistor, the first end of the first end of the first resistor and the second resistance with
And the first end connection of the 4th resistance；Second end of the 4th resistance is connected with the regulation circuit.
4. cold redundancy according to claim 3 controls circuit, it is characterised in that the regulation circuit includes MCU, the 6th electricity
Resistance, the 8th resistance, the 9th resistance, the second electric capacity, the 3rd electric capacity and the first metal-oxide-semiconductor；
The feedback pin of the MCU and the second end of the 4th resistance, the first end and the described 8th of the 6th resistance
The first end connection of resistance；Second end of the 6th resistance and the first end of second electric capacity and the 9th resistance
First end is connected；The second end connection reference ground of second electric capacity, the second end and first metal-oxide-semiconductor of the 9th resistance
Drain electrode connection；Second end of the 8th resistance and the second end of the 3rd electric capacity and the source electrode of first metal-oxide-semiconductor
Connection reference ground；
The output pin of the MCU is connected with the first end of the 3rd electric capacity and the grid of first metal-oxide-semiconductor；It is described
The input pin of MCU is connected with redundant power bus, for data acquisition bus voltage；
When total output loading of the redundant power controls threshold value more than cold redundancy, each power module of redundant power
The output pin output high level of MCU, the power module outputting standard voltage, in normal operating conditions；
When total output loading of the redundant power is not more than cold redundancy control threshold value, the one of power supply of redundant power
The output pin output low level of module MCU, one of power module output voltage is less than normal voltage, into standby
State.
5. cold redundancy according to claim 4 controls circuit, it is characterised in that the equalizing control circuit includes：3rd
Resistance, the 5th resistance, the 7th resistance, the 4th electric capacity, the second metal-oxide-semiconductor and triode；
The first end of the 7th resistance is sharing control signal input part, the second end of the 7th resistance and the described 4th electricity
The base stage connection of the first end of appearance and the triode；The emitter stage of the triode connects with the first end of the 5th resistance
Connect, the second end of the 5th resistance is connected with the drain electrode of second metal-oxide-semiconductor；The grid of second metal-oxide-semiconductor and the MCU
Output pin connection；The second end connection reference ground of the source electrode of second metal-oxide-semiconductor and the 4th electric capacity；The triode
Colelctor electrode and the positive pole of the first end of the 3rd resistor and the second end of the second resistance and first diode connect
Connect；Second end of the 3rd resistor is connected with isolation circuit；
When the power module is in normal operating conditions, the second metal-oxide-semiconductor conducting, the normal work of equalizing control circuit
Make；
When the power module is in holding state, the second metal-oxide-semiconductor shut-off, the equalizing control circuit does not work.
6. cold redundancy according to claim 5 controls circuit, it is characterised in that the isolation circuit includes the two or two pole
Pipe, the positive pole of second diode is connected with the power module outlet, and its negative pole is connected with the redundant power bus；
When the power module outputting standard voltage, second diode current flow, the power module is load supplying；
When the power module output voltage is less than normal voltage, the second diode cut-off；The power module is not negative
Carry power supply.
7. cold redundancy according to claim 5 controls circuit, it is characterised in that the isolation circuit includes the 3rd metal-oxide-semiconductor,
The drain electrode of the 3rd metal-oxide-semiconductor is connected with the power module outlet, and its source electrode is connected with redundant power bus；
When the power module outputting standard voltage, the 3rd metal-oxide-semiconductor conducting, the power module is load supplying；
When the power module output voltage is less than normal voltage, the 3rd metal-oxide-semiconductor cut-off；The power module is not load
Power supply.
8. a kind of redundant power, it is characterised in that including at least two power modules, right such as is provided with the power module will
The cold redundancy described in 1~7 any one is asked to control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621188436.9U CN206259743U (en) | 2016-10-28 | 2016-10-28 | Cold redundancy controls circuit and redundant power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621188436.9U CN206259743U (en) | 2016-10-28 | 2016-10-28 | Cold redundancy controls circuit and redundant power |
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| Publication Number | Publication Date |
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| CN206259743U true CN206259743U (en) | 2017-06-16 |
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| CN201621188436.9U Active CN206259743U (en) | 2016-10-28 | 2016-10-28 | Cold redundancy controls circuit and redundant power |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109947161A (en) * | 2017-12-20 | 2019-06-28 | 致茂电子(苏州)有限公司 | The control method of power system and power system |
| CN112230751A (en) * | 2020-10-13 | 2021-01-15 | 北京中科宇航技术有限公司 | High-reliability triple-modular redundancy computer power supply circuit |
| CN114301153A (en) * | 2020-09-22 | 2022-04-08 | 西安诺瓦星云科技股份有限公司 | Power supply backup control circuit card and LED display control system |
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2016
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109947161A (en) * | 2017-12-20 | 2019-06-28 | 致茂电子(苏州)有限公司 | The control method of power system and power system |
| CN114301153A (en) * | 2020-09-22 | 2022-04-08 | 西安诺瓦星云科技股份有限公司 | Power supply backup control circuit card and LED display control system |
| CN114301153B (en) * | 2020-09-22 | 2024-05-10 | 西安诺瓦星云科技股份有限公司 | Power supply backup control circuit card and LED display control system |
| CN112230751A (en) * | 2020-10-13 | 2021-01-15 | 北京中科宇航技术有限公司 | High-reliability triple-modular redundancy computer power supply circuit |
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Address after: 518000 Guangdong city of Shenzhen province Baoan District two road Xixiang Street Gushu Xing Hui industrial plant workshop one or two, three (A, B, Xing Hui Science Park building C) Patentee after: Shenzhen Europe Lu Tong Electronic Limited by Share Ltd Address before: 518000 Guangdong, Shenzhen, Xixiang City, the town of the world on the road No. 111 Fuyuan Industrial City C7 building /C8 building Patentee before: Oulutong Electronic Co., Ltd., Shenzhen |