CN105610318A - Control circuit - Google Patents

Control circuit Download PDF

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Publication number
CN105610318A
CN105610318A CN201610069774.9A CN201610069774A CN105610318A CN 105610318 A CN105610318 A CN 105610318A CN 201610069774 A CN201610069774 A CN 201610069774A CN 105610318 A CN105610318 A CN 105610318A
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China
Prior art keywords
signal
power supply
control circuit
processing unit
timing
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Granted
Application number
CN201610069774.9A
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Chinese (zh)
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CN105610318B (en
Inventor
曹发银
水伟
马迅
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Huawei Digital Power Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201610069774.9A priority Critical patent/CN105610318B/en
Publication of CN105610318A publication Critical patent/CN105610318A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/02Conversion of dc power input into dc power output without intermediate conversion into ac
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00Details of apparatus for conversion
    • H02M1/0048Circuits or arrangements for reducing losses
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

The application relates to the field of circuit design and discloses a control circuit used for achieving low power consumption of a linear power supply. The control circuit controls the linear power supply to be dormant and wakeup states on time; when the linear power supply is in the dormant state, the linear power supply is disconnected with a path between circuits for supplying power to the linear power supply; and when the linear power supply is in the wakeup state, the linear power supply is connected with the path between the circuits for supplying power to the linear power supply, thus, the problem of high power consumption brought by connection of the linear power supply all the time is prevented, the power consumption of the linear power supply is also reduced, and the requirement of low power consumption in the circuit is met. Moreover, the control circuit designed according to the embodiment of the application is simple in design mode and relatively low in cost, and is convenient to control and easy to implement.

Description

A kind of control circuit
Technical field
The application relates to circuit design technique field, particularly a kind of control circuit.
Background technology
Linear power supply has the inherent characteristic that power consumption is large, cannot meet the requirement of low-power consumption in application process,Reduce energy utilization rate.
For example, (English: Photovoltaic is called for short: PV) component technology is by installing Intelligent photovoltaicDetection means realizes the information such as voltage, temperature of each PV assembly is detected, thereby realizes more accurateFault report, make photovoltaic generating system more intelligent, safer. For cost-saving, detection means is commonBe directly to utilize the generating positive and negative voltage of PV assembly as input power, receive electric power by linear circuit. DetectDevice can comprise two parts: linear power supply and rear class load, therefore, the power consumption of detection means has linear electricityPower consumption two parts composition of the power consumption in source and rear class load. In order to improve PV assembly power supply efficiency, need to the greatest extentAmount reduces the power consumption of detection means. Existing scheme is to be realized and being fallen by the power consumption of reduction rear class load mostlyThe power consumption of low detection means, but linear power supply self also has higher power consumption, and linear power supply is connecingEnter after circuit always in on-state, greatly reduce like this power supplying efficiency of PV assembly.
To sum up, it is urgently to be resolved hurrily that the power consumption that how to reduce linear power supply meets the requirement of low-power consumption in circuitProblem.
Summary of the invention
The embodiment of the present application provides a kind of control circuit, meets in circuit in order to the power consumption that reduces linear power supplyThe requirement of low-power consumption.
The concrete technical scheme that the embodiment of the present application provides is as follows:
First aspect, provides a kind of control circuit, described control circuit for control linear power supply dormancy andWake up, make when linear power supply is during in resting state, linear power supply and providing between the circuit of electric power for itPath disconnect, when linear power supply is during in wake-up states, linear power supply with provide for it electric power circuit itBetween path just connect.
Like this, avoid linear power supply to connect and the high power problems that brings always, namely reduced linearityThe power consumption of power supply, meets the requirement of low-power consumption in circuit.
In conjunction with first aspect, in the possible implementation of the first of first aspect, described control circuit is usedIn connecting linear power supply and providing the power supply circuits of electric power for described linear power supply;
Described control circuit comprises major loop gauge tap, signal processing unit, timing control circuit, controlDevice, described major loop gauge tap is placed on the major loop that described linear power supply is connected with described power supply circuits,Described timing control circuit, described controller, described major loop gauge tap all with described signal processing unitConnect, described controller also connects described linear power supply; Wherein:
Described controller and described timing control circuit, all for carrying signal to described signal processing unit;
Described signal processing unit, for defeated according to the described timing control circuit and the described controller that receiveAt least one road signal sending, carries and is used for controlling described major loop gauge tap to described major loop gauge tapThe first closed control signal or the second control signal disconnecting for controlling described major loop gauge tap;
Described major loop gauge tap, in the time that described signal processing unit is carried described the first control signalClosure, realizes described power supply circuits and provides electric power to described linear power supply; Or, at described signalWhen processing unit is carried described the second control signal, disconnect, realize and cut off described power supply circuits to described linearityPower supply provides electric power. The control circuit design of the embodiment of the present application design is simple, and it is convenient to control, costLower, be easy to realize.
In conjunction with the possible implementation of the first of first aspect or first aspect, at the second of first aspectIn possible implementation, described timing control circuit is also connected with described power supply circuits, described controller;
Described timing control circuit specifically for:
In the time of the described power supply circuits of access, start the recording timing time, or, under the control of described controllerStart the recording timing time;
In the time that the timing of record arrives the time threshold arranging, the electricity providing according to described power supply circuitsPower, carries first signal to described signal processing unit, and described first signal is used for notifying described signal processingMajor loop gauge tap closure described in unit controls;
Described signal processing unit specifically for: in the time receiving described first signal, to described major loop controlSwitch processed is carried described the first control signal.
In conjunction with the first or the possible implementation of the second of first aspect, first aspect, in first aspectThe third possible implementation in, record timing arrive arrange time threshold time, described inMajor loop gauge tap is in off-state.
In conjunction with the first of first aspect and first aspect to any in the third possible implementation,In the 4th kind of possible implementation of first aspect,
Described controller specifically for:
In the time receiving the electric power that described linear power supply provides, carry the second letter to described signal processing unitNumber, described secondary signal is used for notifying described signal processing unit to maintain described major loop gauge tap closure;
Described signal processing unit specifically for:
In the time receiving described secondary signal, carry described first to control letter to described major loop gauge tapNumber.
In conjunction with any in four kinds of possible implementations of the first to the of first aspect and first aspect,In the 5th kind of possible implementation of first aspect, described controller also for:
Carrying after secondary signal to described signal processing unit, carrying the 3rd letter to described timing control circuitNumber, described the 3rd signal is for notifying described timing control circuit to empty recorded timing and to describedSignal processing unit is carried the 4th signal; And
In the time determining that need to cut off described power supply circuits provides electric power to described linear power supply, to described signal placeThe 5th signal is carried in reason unit;
Described the 4th signal and described the 5th signal are jointly for notifying described in described signal processing unit controlMajor loop gauge tap disconnects;
Described signal processing unit specifically for:
In the time receiving described the 4th signal and described the 5th signal, carry institute to described major loop gauge tapState the second control signal.
In conjunction with any in five kinds of possible implementations of the first to the of first aspect and first aspect,In the 6th kind of possible implementation of first aspect,
Before carrying the 5th signal to described signal processing unit, carry the 6th to described timing control circuitSignal, described the 6th signal is used for notifying described timing control circuit to start the recording timing time.
In conjunction with any in six kinds of possible implementations of the first to the of first aspect and first aspect,In the 7th kind of possible implementation of first aspect,
Described signal processing unit specifically for:
Receive in described first signal and described secondary signal at least one time, to described major loop controlSwitch processed is carried the first control signal for controlling described major loop gauge tap closure; And
In the time receiving described the 4th signal and described the 5th signal, carry and use to described major loop gauge tapIn the second control signal of controlling described major loop gauge tap disconnection.
In conjunction with the 5th kind or the 6th kind of possible implementation of first aspect, can the 8th kind of first aspectIn the implementation of energy,
Described timing control circuit comprises capacitor discharge switch, the first capacitor and the first fixed value resistance; InstituteState capacitor discharge switch and be connected with described the first Parallel-connected Capacitor, described in a tie point after being connected in parallelBe connected with described controller, another tie point is connected with described first fixed value resistance one end, and described first is fixedThe other end of value resistance connects described power supply circuits;
Described capacitor discharge switch is used for, and in the time receiving described the 3rd signal of described controller conveying, closesClose, in the time receiving described the 6th signal of described controller conveying, disconnect;
Described the first capacitor is used for, and in the time that described capacitor discharge switch is closed, puts by described capacitorElectric switch discharges; And, in the time that described capacitor discharge switch disconnects, by described the first definite value electricityThe electric power that resistance receives described power supply circuits to be provided charges;
Described the first capacitor and described the first fixed value resistance, jointly for controlling described the first capacitor chargingTime used.
In conjunction with the 5th kind of possible implementation of first aspect, in the 9th kind of possible realization of first aspectIn mode,
In the time that described timing control circuit accesses described power supply circuits, receive institute by described the first fixed value resistanceThe electric power that stating power supply circuits provides charges.
In conjunction with the 5th kind or the 6th kind of possible implementation of first aspect, can the tenth kind of first aspectIn the implementation of energy, described timing control circuit comprises timing controlled chip, the second fixed value resistance and the 3rdFixed value resistance; In described timing controlled chip, be provided with the second capacitor, described timing controlled chip is by pipePin connect respectively described controller, described signal processing unit, described the second fixed value resistance one end, described inOne end of the 3rd fixed value resistance, another of the other end of described the second fixed value resistance and described the 3rd fixed value resistanceEnd is connected;
Described timing controlled chip is used for, described the 3rd signal controlling of carrying according to the described controller receivingThe electric discharge of described the second capacitor, or, described the 6th signal control of carrying according to the described controller receivingMake the charging of described the second capacitor;
Described the second fixed value resistance and described the 3rd fixed value resistance, fill for controlling described the second capacitor jointlyThe time that electricity is used.
In conjunction with the tenth kind of possible implementation of first aspect, in the 11 kind of possible reality of first aspectIn existing mode, described timing controlled chip also for, access described power supply circuits at described timing control circuitTime, the electric power providing according to described power supply circuits is that described the second capacitor charges.
In above aspect, the described charging time used is described time threshold.
Second aspect, provides a kind of electric power system, comprises linear power supply, provides the confession of electric power for linear power supplyElectricity circuit and the control electricity as described in any in ten kinds of the first to the of first aspect and first aspectRoad.
The third aspect, provides a kind of computer-readable storage medium, for saving as the power supply described in above-mentioned aspectThe computer software instructions that circuit is used, it comprises for carrying out the designed program in above-mentioned aspect.
The control circuit that the application provides can avoid linear power supply to connect always and the high power consumption brought is askedInscribe, namely reduced the power consumption of linear power supply, meet the requirement of low-power consumption in circuit, and the application is realThe control circuit design of executing example design is simple, and it is convenient to control, and cost is lower, is easy to realize.
Brief description of the drawings
Fig. 1 is the system architecture schematic diagram of control circuit application in the embodiment of the present application;
Fig. 2 is the structural representation of control circuit in the embodiment of the present application;
Fig. 3 is signal type corresponding relation schematic diagram in the embodiment of the present application;
Fig. 4 a is the first design structure diagram of timing control circuit in the embodiment of the present application;
Fig. 4 b is the second design structure diagram of timing control circuit in the embodiment of the present application;
Fig. 5 is the specific works process flow diagram flow chart of each device in control circuit in the embodiment of the present application.
Detailed description of the invention
In order to make the application's object, technical scheme and advantage clearer, below in conjunction with accompanying drawing to this ShenPlease be described in further detail, obviously, described embodiment is only some embodiments of the present application,Instead of whole embodiment. Based on the embodiment in the application, those of ordinary skill in the art are not doingGo out all other embodiment that obtain under creative work prerequisite, all belong to the scope of the application's protection.
In the process that is applied to circuit, cannot meet circuit due to the high power consumption of self for linear power supplyThe problem that middle low-power consumption requires, the embodiment of the present application has designed a kind of control circuit, for controlling linear power supplyThe dormancy of timing and waking up, when linear power supply is during in resting state, linear power supply and provide electric power for itPath between circuit disconnects, when linear power supply is during in wake-up states, linear power supply with provide electric power for itCircuit between path just connect, so just avoided linear power supply to connect and the high power consumption brought is asked alwaysInscribe, namely reduced the power consumption of linear power supply, meet the requirement of low-power consumption in circuit, and the application is realThe control circuit design of executing example design is simple, and it is convenient to control, and cost is lower, is easy to realize.
The control circuit of the embodiment of the present application design is applicable to low-power consumption to require higher scene, can applyIn fields such as intelligent PV assembly monitoring, the monitorings of back-up source battery pack string, the application is only to be applied to intelligencePV assembly monitoring is introduced for example.
In the application of intelligence PV component technology, utilize detection means to detect the information such as voltage, temperature of PV assemblyApplication scenarios, because PV component count is huge, therefore require all higher to hardware cost and power consumption.
Below with reference to accompanying drawing, the application's preferred embodiment is elaborated.
Consult shown in Fig. 1, in the embodiment of the present application, the system architecture of control circuit application comprises power supply circuits101, control circuit 102, linear power supply 103 and rear class load 104.
Wherein, power supply circuits 101 are used to linear power supply 103 that electric power is provided; Control circuit 102 control linesConnecting or disconnecting of property power supply 103, that is to say that control circuit 102 controls that linear power supply 103 receives orPerson disconnects and receives the electric power that power supply circuits 101 provide; Linear power supply 103 provides electric power for rear class load 104.
Taking the application scenarios of intelligent PV assembly as example, linear power supply 103 is generally to rely on PV assemblyThe voltage difference providing provides electric power as power supply circuits 101, detection means comprise linear power supply 103, afterLevel load 104 and control circuit 102, in order to improve the efficiency of PV assembly, expect the electricity that PV assembly providesPower flows to application PV assembly, and to carry out the power receiving equipment of work The more the better, and therefore, detection means consumesElectric energy is more few better, in the embodiment of the present application, utilizes control circuit 102 to control the connection of linear power supply 103And disconnection, reduce the electric energy that linear power supply 103 and rear class load 104 consume, thereby reduce detection meansThe electric energy consuming, the efficiency of raising PV assembly.
Introduce in detail the circuit design of control circuit 102 below.
Consult shown in Fig. 2, control circuit 102 for connect linear power supply and for described linear power supply provide electricityThe power supply circuits of power;
Control circuit 102 comprises major loop gauge tap 1021, signal processing unit 1022, timing controlledCircuit 1023, controller 1024, major loop gauge tap 1021 is placed in linear power supply 103 and power supply circuitsOn 101 major loops that connect, timing control circuit 1023, controller 1024, major loop gauge tap 1021All be connected with signal processing unit 1022; Wherein:
Controller 1024 and timing control circuit 1023, all for carrying signal to signal processing unit 1022.
The signal relating in the embodiment of the present application can comprise high level in logic level (representing with 1) andLow level (representing with 0), preferably, logic level be transistor-transistor logic level (English:TransistorTransistorLogic, is called for short: TTL), wherein high level signal is with respect to low level signalVoltage is higher, and the side's of conveying devices use high level signal and low level signal transmit different letters to recipientBreath. Certainly the control circuit that the embodiment of the present application provides also can be applied other signal indication modes and transmit notSame information.
Signal processing unit 1022, the timing control circuit 1023 and the controller 1024 that receive for basisAt least one road signal of carrying, carries and is used for controlling major loop gauge tap to major loop gauge tap 1021The first control signal of 1021 closures or the second control letter disconnecting for controlling major loop gauge tap 1021Number.
Wherein, signal processing unit 1022 can receive timing control circuit 1023 and controller 1024 is defeatedThe signal sending, and the signal receiving is processed, determine and need to carry to major loop gauge tap 1021Signal type (suppose that the first control signal is high level signal, the second control signal is low level signal),Control the closed of major loop gauge tap 1021 or disconnect.
Suppose that timing control circuit 1023 and controller 1024 all can carry high level signal (representing with 1)And low level signal (representing with 0), signal processing unit 1022 is carried to major loop gauge tap 1021When high level signal, can control major loop gauge tap 1021 closures, connect linear power supply 103; SignalWhen processing unit 1022 is carried low level signal to major loop gauge tap 1021, can control major loop controlSwitch 1021 processed disconnects, and disconnects linear power supply 103. Timing control circuit 1023, controller 1024, letterThe signal that number processing unit 1022 is carried represents with S1, S2 and S3 respectively, signal processing unit 1022Output signal type and timing control circuit 1023 and controller 1024 are carried the corresponding relation of signal typeA kind of example as shown in Figure 3.
In Fig. 3, can find out, when signal processing unit 1022 receives timing control circuit 1023 and controlsWhen the high level signal that carries at least one road in device 1024, just can determine to major loop gauge tap1021 carry high level signal, control major loop gauge tap 1021 closures; When signal processing unit 1022While receiving the low level signal that timing control circuit 1023 and controller 1024 carry simultaneously, just can be trueDirected major loop gauge tap 1021 is carried low level signal, and control major loop gauge tap 1021 and disconnect,Certainly, when low level signals and another road are carried not in timing control circuit 1023 and controller 1024 Zhong Yi roadsWhile carrying signal, signal processing unit 1022 also can be determined to major loop gauge tap 1021 and carry low electricityFlat signal, controls major loop gauge tap 1021 and disconnects.
Major loop gauge tap 1021, for closing in the time that signal processing unit 1022 is carried the first control signalClose, realize power supply circuits 101 and provide electric power for linear power supply 103; Or, single for processing at signalUnit 1022 disconnects while carrying the second control signal, realizes and cuts off power supply circuits 101 for linear power supply 103Electric power is provided.
Preferably, timing control circuit 1023 is also connected with power supply circuits 101, controller 1024, regularlyControl circuit 1023 specifically for:
In the time of access power supply circuits 101, start the recording timing time, or, in the control of controller 1024The lower beginning recording timing time;
In the time that the timing of record arrives the time threshold arranging, the electric power providing according to power supply circuits 101,Carry first signal to signal processing unit 1022, first signal is controlled for notification signal processing unit 1022Major loop gauge tap closure processed.
As shown in the example of Fig. 3, the first signal here can be high level signal.
In practical application, the timing recording at timing control circuit 1023 arrives the time threshold arrangingTime, because major loop gauge tap 1021 disconnects, controller 1024 can't receive linear power supply103 electric power that provide.
Preferably, controller 1024 is also connected with linear power supply 103, controller 1024 specifically for:
In the time receiving the electric power that linear power supply 103 provides, carry the second letter to signal processing unit 1022Number, described secondary signal maintains major loop gauge tap 1021 closures for notification signal processing unit 1022.
As shown in the example of Fig. 3, the secondary signal here can be high level signal.
In practical application, when after major loop gauge tap 1021 closures, linear power supply 103 just can be connectedPower supply circuits 101, thus controller 1024 just can receive the electric power that linear power supply 103 provides, to signalProcessing unit 1022 is carried high level signal, and now timing control circuit just can stop to signal processingHigh level signal is carried in unit. Therefore, controller 1024 also for:
Carrying after secondary signal to signal processing unit 1022, carrying the 3rd to timing control circuit 1023Signal, the 3rd signal is for notifying timing control circuit 1023 to empty recorded timing and to signalProcessing unit 1022 is carried the 4th signal; And
Carry to signal processing unit 1022 at timing control circuit 1023 in the process of the 4th signal, determineNeed to cut off power supply circuits 101 while providing electric power for linear power supply 103, defeated to signal processing unit 1022Send the 5th signal;
Described the 4th signal and described the 5th signal are jointly controlled and are led back for notification signal processing unit 1022Way control switch 1021 disconnects.
Wherein, the 3rd signal can be high level signal; As shown in the example of Fig. 3, the 4th signal hereWith the 5th can be low level signal, when timing control circuit 1023 and controller 1024 are all to signal placeWhen low level signal is carried in reason unit 1022, signal processing unit 1022 can be to major loop gauge tap 1021Carry low level signal, control major loop gauge tap 1021 and disconnect, cut off linear power supply 103 from opening. ToolBody, controller, after other normal work such as data acquisition, data communication, need to enter low meritWhen consumption pattern, determine that need to cut off power supply circuits 101 provides electric power for linear power supply 103
In addition, carry to signal processing unit 1022 at timing control circuit 1023 in the process of the 4th signal,Controller 1024 is before carrying the 5th signal to signal processing unit 1022, to timing control circuit 1023Carry the 6th signal, the 6th signal is used for notifying described timing control circuit to start the recording timing time.
As mentioned above, if the 3rd signal high level signal, the 6th signal is here low level signal.
Controller 1024, by before carrying low level signal control cut-out linear power supply 103, needs elder generationControl timing control circuit 1023 and start timing, so that follow-up timing of recording at timing control circuit 1023While arriving described setting threshold, triggering sent high level signal to signal processing unit 1022 and caused timeConnect follow-up a series of above-mentioned processes such as linear power supply 103.
To sum up, under the effect of control circuit 102, can realize timing and connect and cut off linear power supply 103,Realize the low-power consumption of linear power supply 103.
Below the circuit design of timing control circuit in the embodiment of the present application 1023 is described in detail. FixedTime control circuit 1023 can be, but not limited to comprise following two kinds of designs:
The first designs as shown in Fig. 4 a, timing control circuit 1023 comprise capacitor discharge switch 10231,The first capacitor 10232 and the first fixed value resistance 10233.
As shown in Fig. 4 a, capacitor discharge switch 10231 and the first capacitor 10232 are connected in parallel, andA tie point after connection connects is connected with controller 1024, another tie point and the first fixed value resistance10233 one end connect, and the other end of the first fixed value resistance 10233 connects power supply circuits 101;
Capacitor discharge switch 10231 is for, above-mentioned the 3rd signal that is receiving controller 1024 and carryTime closure, in the time receiving above-mentioned the 6th signal that controller 1024 carries, disconnect;
The first capacitor 10232 for, in the time that capacitor discharge switch 10231 is closed, put by capacitorElectric switch 10231 discharges; And, in the time that capacitor discharge switch 10231 disconnects, fixed by firstThe electric power that value resistance 10233 receives power supply circuits 101 to be provided charges; .
In fact,, after the first capacitor 10232 discharges, timing control circuit 1023 will be exported lowLevel, namely above-mentioned the 4th signal. When the first capacitor 10232 starts to charge, start recording timingTime, the process of charging is the process of recording timing time.
The first capacitor 10232 and the first fixed value resistance 10233, jointly for controlling the first capacitor 10232Charge the time used, the time used of charging is above-mentioned time threshold. Particularly, the first capacitor 10232Capacitance and the resistance value of the first fixed value resistance 10233, determine charging time used.
In addition, the first capacitor 10232 also for, access power supply circuits 101 at timing control circuit 1023Time, the electric power that is received power supply circuits 101 and provided by the first fixed value resistance 10233 charges.
In the time that timing control circuit 1023 has just accessed power supply circuits 101, major loop gauge tap is to disconnect, linear power supply 103 cannot receive the electric power that power supply circuits 101 provide, but timing control circuit 1023In the time of access power supply circuits 101, just can receive the electric power that power supply circuits 101 provide, thus the first capacitor10232 just can charge in the time that timing control circuit 1023 accesses power supply circuits 101, start recordTiming.
The second designs as shown in Figure 4 b, timing control circuit 1023 comprise timing controlled chip 10234,The second fixed value resistance 10235 and the 3rd fixed value resistance 10236; In timing controlled chip 10234, be provided withTwo capacitors, timing controlled chip 10234 connects respectively controller 1024, signal processing unit by pin1022, one end of one end of the second fixed value resistance 10235, the 3rd fixed value resistance 10236, the second definite value electricityThe other end of resistance 10235 is connected with the other end of the 3rd fixed value resistance 10236;
Timing controlled chip 10234 for, according to controller 1024 the 3rd signal controlling of carrying receivingThe electric discharge of the second capacitor, or, the 6th signal controlling second of carrying according to the controller 1024 receivingThe charging of capacitor.
In fact, timing controlled chip 10234 is being controlled after the second capacitor discharge, timing control circuit1023 will output low level, namely above-mentioned the 4th signal. Timing controlled chip 10234 is controlling secondWhen capacitor charging, timing controlled chip 10234 starts the recording timing time, and the process of so-called chargingThe process of recording timing time.
The second fixed value resistance 10235 and the 3rd fixed value resistance 10236, fill for controlling the second capacitor jointlyThe time that electricity is used, the time used of charging is above-mentioned time threshold.
In addition, timing controlled chip 10234 also for, access power supply circuits at timing control circuit 1023101 o'clock, the electric power providing according to power supply circuits 101 was that the second capacitor charges.
In the time that timing control circuit 1023 has just accessed power supply circuits 101, major loop gauge tap is to disconnect, linear power supply 103 cannot receive the electric power that power supply circuits 101 provide, but timing control circuit 1023In the time of access power supply circuits 101, just can receive the electric power that power supply circuits 101 provide, thus timing control coremakingSheet 10234 can be just that the second capacitor carries out in the time that timing control circuit 1023 accesses power supply circuits 101Charging, starts the recording timing time.
Based on the above-mentioned control circuit providing, below in conjunction with concrete flow process by the mistake of above-mentioned control circuit workJourney elaborates. Suppose an application device of the common composition of control circuit, linear power supply and rear class load,This application device is applied in power supply circuits, and power supply circuits provide electric power for this application device, in order to carryThe power supplying efficiency of high power supply circuits need to reduce the power that this application device consumes as far as possible, and the application passes throughThe power consumption that reduces linear power supply reduces the power that this application device consumes. Consult shown in Fig. 5, realizingReduce in the process of power consumption of linear power supply, in control circuit, the specific works process of each device is as described below.
Step 501: timing control circuit record timing arrive set time threshold time, Xiang XinNumber processing unit is carried signal S1.
Suppose that the S1 carrying is high level signal herein, high level signal S1 is for notification signal processing unitRemove closed major loop gauge tap.
Particularly, above-mentioned application device is in the time just accessing power supply circuits, and major loop gauge tap disconnects,Linear power supply just cannot receive the electric power that power supply circuits provide so, but timing control circuit is directly and suppliesElectricity circuit connects, and therefore timing control circuit can, in the time of above-mentioned application device access power supply circuits, just canTo start the recording timing time. In the time that timing arrives the time threshold of setting, timing control circuit just needsTo, by carrying high level signal to signal processing unit, finally reach the order of closed major loop gauge tap, namely connect linear power supply. Concrete time threshold is set according to the scene of practical application and empirical value,In application process, can constantly upgrade optimization.
Step 502: signal processing unit is in the time receiving the signal S1 of timing control circuit conveying, to leading backWay control switch is carried signal S3.
Suppose that the S3 carrying is high level signal herein, high level signal S3 is for controlling in off-stateMajor loop gauge tap closure.
It should be noted that, in this step, linear power supply is not also connected, namely controller cannot receiveThe electric power that linear power supply provides, controller is to not output signal of signal processing unit.
Step 503: major loop gauge tap is closure in the time receiving signal S3, connects thereby trigger linear power supplyLogical, power supply circuits can be linear power supply power supply.
Once linear power supply is connected, controller just can normally be worked.
Step 504: controller is carried signal S2 to signal processing unit.
Suppose that signal S2 is high level signal. High level signal S2 returns for controlling in the master of closure stateWay control switch continues to maintain closure state.
Step 505: controller is carried signal S4 to timing control circuit.
Once linear power supply is connected, controller just can normally be worked.
Suppose that signal S4 is high level signal. High level signal S4 is used for controlling timing control circuit and stops workDo, also in other words, control timing control circuit and stop carrying high level signal S1 to signal processing unit, because ofJust can maintain major loop gauge tap for controlling high level signal S4 that forward direction timing control circuit carriesClosure state, ensures linear power supply connection.
Step 506: timing control circuit is in the time receiving the high level signal S4 of controller conveying, and it is fixed to controlTime capacitor discharge in control circuit, after electric discharge, just can carry low level signal to signal processing unit.
Generally, make to carry level to be low to moderate can to meet TTL low level to want by capacitor dischargeFor example, while asking (0.8V), signal processing unit just can be thought and receive low level signal.
Step 507: controller is carried signal S4 to timing control circuit, now signal S4 is low level letterNumber.
Controller completes after other normal work, can determine that cutting off linear power supply realizes linear power supplyLow-power consumption, but before cutting off linear power supply, need to control timing control circuit and start the recording timing time,So that the flow process of linear power supply is connected in follow-up realization.
Step 508: controller is carried signal S2 to signal processing unit, now signal S2 is low level letterNumber.
Controller is carried low level signal S2 to signal processing unit, due to timing control circuit now toSignal processing unit has been carried low level signal S1, can pass through the low level signal notification signal of two-way placeReason unit disconnects major loop gauge tap.
Step 509: signal processing unit receives low level signal S1 and low level signal S2, to major loopGauge tap is carried low level signal S3, controls major loop gauge tap and disconnects.
It is all low level signal that signal processing unit receives two paths of signals, therefore also can hold to major loop controlClose and carry low level signal.
Step 510: major loop gauge tap disconnects while receiving low level signal S3, realizes the disconnected of linear power supplyOpen.
Linear power supply, disconnecting with after being connected of power supply circuits, will be realized the power consumption of reduction linear power supply.
After step 510 finishes, return to execution step 501.
Those skilled in the art should understand, the application's embodiment can be provided as method, system or meterCalculation machine program product. Therefore, the application can adopt complete hardware implementation example, completely implement software example or knotClose the form of the embodiment of software and hardware aspect. And the application can adopt at one or more wherein bagsThe computer-usable storage medium that contains computer usable program code (include but not limited to magnetic disc store,CD-ROM, optical memory etc.) form of the upper computer program of implementing.
The application is that reference is according to the method for the embodiment of the present application, equipment (system) and computer program productThe flow chart of product and/or block diagram are described. Should understand can be by computer program instructions realization flow figure and/ or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/Or the combination of square frame. Can provide these computer program instructions to all-purpose computer, special-purpose computer, embeddingThe processor of formula processor or other programmable data processing device, to produce a machine, makes by calculatingThe instruction that the processor of machine or other programmable data processing device is carried out produces for realizing at flow chart oneThe device of the function of specifying in square frame of individual flow process or multiple flow process and/or block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or other programmable data processing are establishedIn the standby computer-readable memory with ad hoc fashion work, make to be stored in this computer-readable memoryInstruction produce and comprise the manufacture of command device, this command device is realized in flow process or multiple of flow chartThe function of specifying in square frame of flow process and/or block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makeMust on computer or other programmable devices, carry out sequence of operations step to produce computer implemented placeReason, thus the instruction of carrying out on computer or other programmable devices is provided for realizing one of flow chartThe step of the function of specifying in square frame of flow process or multiple flow process and/or block diagram or multiple square frame.
Although described the application's preferred embodiment, once those skilled in the art obtain cicada baseThis creative concept, can make other change and amendment to these embodiment. So appended right is wantedAsk and be intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the application's scope.
Obviously, those skilled in the art can carry out various changes and modification and de-to the embodiment of the present applicationFrom the spirit and scope of the embodiment of the present application. Like this, if these amendments and the modification of the embodiment of the present application belong toWithin the scope of the application's claim and equivalent technologies thereof, the application be also intended to comprise these change andModification is interior.

Claims (10)

1. a control circuit, is characterized in that, described control circuit is used for connecting linear power supply and is instituteStating linear power supply provides the power supply circuits of electric power;
Described control circuit comprises major loop gauge tap, signal processing unit, timing control circuit, controlDevice, described major loop gauge tap is placed on the major loop that described linear power supply is connected with described power supply circuits,Described timing control circuit, described controller, described major loop gauge tap all with described signal processing unitConnect, described controller also connects described linear power supply; Wherein:
Described controller and described timing control circuit, all for carrying signal to described signal processing unit;
Described signal processing unit, for defeated according to the described timing control circuit and the described controller that receiveAt least one road signal sending, carries and is used for controlling described major loop gauge tap to described major loop gauge tapThe first closed control signal or the second control signal disconnecting for controlling described major loop gauge tap;
Described major loop gauge tap, in the time that described signal processing unit is carried described the first control signalClosure, realizes described power supply circuits and provides electric power to described linear power supply; Or, at described signalWhen processing unit is carried described the second control signal, disconnect, realize and cut off described power supply circuits to described linearityPower supply provides electric power.
2. control circuit as claimed in claim 1, is characterized in that, described timing control circuit also withDescribed power supply circuits, described controller are connected;
Described timing control circuit specifically for:
In the time of the described power supply circuits of access, start the recording timing time, or, under the control of described controllerStart the recording timing time;
In the time that the timing of record arrives the time threshold arranging, the electricity providing according to described power supply circuitsPower, carries first signal to described signal processing unit, and described first signal is used for notifying described signal processingMajor loop gauge tap closure described in unit controls;
Described signal processing unit specifically for: in the time receiving described first signal, to described major loop controlSwitch processed is carried described the first control signal.
3. control circuit as claimed in claim 1 or 2, is characterized in that,
Described controller specifically for:
In the time receiving the electric power that described linear power supply provides, carry the second letter to described signal processing unitNumber, described secondary signal is used for notifying described signal processing unit to maintain described major loop gauge tap closure;
Described signal processing unit specifically for:
In the time receiving described secondary signal, carry described first to control letter to described major loop gauge tapNumber.
4. control circuit as claimed in claim 3, is characterized in that, described controller is also with described fixedTime control circuit be connected, described controller also for:
Carrying after secondary signal to described signal processing unit, carrying the 3rd letter to described timing control circuitNumber, described the 3rd signal is for notifying described timing control circuit to empty recorded timing and to describedSignal processing unit is carried the 4th signal; And
In the time determining that need to cut off described power supply circuits provides electric power to described linear power supply, to described signal placeThe 5th signal is carried in reason unit;
Described the 4th signal and described the 5th signal are jointly for notifying described in described signal processing unit controlMajor loop gauge tap disconnects;
Described signal processing unit specifically for:
In the time receiving described the 4th signal and described the 5th signal, carry institute to described major loop gauge tapState the second control signal.
5. control circuit as claimed in claim 4, is characterized in that, described controller also for:
Before carrying the 5th signal to described signal processing unit, carry the 6th to described timing control circuitSignal, described the 6th signal is used for notifying described timing control circuit to start the recording timing time.
6. the control circuit as described in claim 4 or 5, is characterized in that, described timing control circuitComprise capacitor discharge switch, the first capacitor and the first fixed value resistance; Described capacitor discharge switch and instituteState the first Parallel-connected Capacitor and connect, described in a tie point after being connected in parallel be connected with described controller, separatelyA tie point is connected with described first fixed value resistance one end, and the other end of described the first fixed value resistance connects instituteState power supply circuits;
Described capacitor discharge switch is used for, and in the time receiving described the 3rd signal of described controller conveying, closesClose, in the time receiving described the 6th signal of described controller conveying, disconnect;
Described the first capacitor is used for, and in the time that described capacitor discharge switch is closed, puts by described capacitorElectric switch discharges; And, in the time that described capacitor discharge switch disconnects, by described the first definite value electricityThe electric power that resistance receives described power supply circuits to be provided charges;
Described the first capacitor and described the first fixed value resistance, jointly for controlling described the first capacitor chargingTime used.
7. control circuit as claimed in claim 6, is characterized in that, described the first capacitor also for,In the time that described timing control circuit accesses described power supply circuits, receive described confession by described the first fixed value resistanceThe electric power that electricity circuit provides charges.
8. the control circuit as described in claim 4 or 5, is characterized in that, described timing control circuitComprise timing controlled chip, the second fixed value resistance and the 3rd fixed value resistance; In described timing controlled chip, arrangeHave the second capacitor, described timing controlled chip connects respectively described controller, described signal place by pinReason unit, one end of described the second fixed value resistance, one end of described the 3rd fixed value resistance, described the second definite valueThe other end of resistance is connected with the other end of described the 3rd fixed value resistance;
Described timing controlled chip is used for, described the 3rd signal controlling of carrying according to the described controller receivingThe electric discharge of described the second capacitor, or, described the 6th signal control of carrying according to the described controller receivingMake the charging of described the second capacitor;
Described the second fixed value resistance and described the 3rd fixed value resistance, fill for controlling described the second capacitor jointlyThe time that electricity is used.
9. control circuit as claimed in claim 8, is characterized in that, described timing controlled chip is also usedIn, in the time that described timing control circuit accesses described power supply circuits, the electric power providing according to described power supply circuitsFor described the second capacitor charges.
10. the control circuit as described in claim 6-9 any one, is characterized in that, described charging is usedTime be described time threshold.
CN201610069774.9A 2016-02-01 2016-02-01 A kind of control circuit Active CN105610318B (en)

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Citations (4)

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Publication number Priority date Publication date Assignee Title
US20120326502A1 (en) * 2011-06-27 2012-12-27 Hap Nguyen System and method of eliminating wasted energy known as vampire electricity or phantom load loss
US20140062190A1 (en) * 2008-03-07 2014-03-06 Glithouby Mgmt. Llc Energy conserving (stand-by mode) power saving design for battery chargers and power supplies with a control signal
CN104238421A (en) * 2014-09-16 2014-12-24 福建捷联电子有限公司 Method and circuit for achieving electronic product zero power consumption standby
CN204391769U (en) * 2014-08-26 2015-06-10 深圳市哈勃智联电子有限公司 The charging device of Zero-power-consumption standby

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140062190A1 (en) * 2008-03-07 2014-03-06 Glithouby Mgmt. Llc Energy conserving (stand-by mode) power saving design for battery chargers and power supplies with a control signal
US20120326502A1 (en) * 2011-06-27 2012-12-27 Hap Nguyen System and method of eliminating wasted energy known as vampire electricity or phantom load loss
CN204391769U (en) * 2014-08-26 2015-06-10 深圳市哈勃智联电子有限公司 The charging device of Zero-power-consumption standby
CN104238421A (en) * 2014-09-16 2014-12-24 福建捷联电子有限公司 Method and circuit for achieving electronic product zero power consumption standby

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