CN103248100B - A kind of back-up power source charging-dischargingcontrol control circuit - Google Patents
A kind of back-up power source charging-dischargingcontrol control circuit Download PDFInfo
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- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/28—Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
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Abstract
The invention provides a kind of back-up power source charging-dischargingcontrol control circuit, comprise DC power supplier, electrical storage device, power supply modular converter, electrical storage device charge control module and electrical storage device control of discharge module, when DC power supplier is powered, when DC power supplier is not powered, power supply modular converter controls electrical storage device and powers to subscriber terminal equipment, and electrical storage device charge control module detects the voltage of electrical storage device and controls electrical storage device and whether be in charged state; Electrical storage device control of discharge module detects the voltage of electrical storage device and controls electrical storage device and whether be in discharge condition.Circuit structure of the present invention is simple, and cost is low, and stability and reliability are relatively high.
Description
Technical field
The present invention relates to a kind of power communications device, specifically a kind of back-up power source charging-dischargingcontrol control circuit, belongs to communication technical field.
Background technology
Back-up source be a kind of drive circuit of subscriber terminal equipment that effectively prevents without the there won't be any problem power supply of a kind of automatic driving during normal voltage, in order to the power supply providing subscriber terminal equipment normally to work.
Back-up source can realize zero-time switching to the power supply of all kinds of electric supply installation, and the length of power itself time is optional, and has the feature of voltage stabilizing, frequency stabilization, purification, is ensure for electrical stability and successional visual plant.Back-up source solves the problems such as the power-off of existing electric power, under-voltage, overvoltage, makes power electronic equipment and computer system run more safe and reliable.At present, back-up source has been widely used the industries such as computer, traffic, bank, security, communication, medical treatment, Industry Control, and little by little enters family.
The operation principle of traditional back-up source is normally: when there being civil power, first civil power is become direct current by AC/DC converter, this direct current is carried out power factor correction by DC/DC converter, and then supplies subscriber terminal equipment after being reverse into alternating current by DC/AC converter; When not having civil power, the direct current of storage battery first by DC/DC conversion boosting, then by DC/AC converter, supplies subscriber terminal equipment after being reverse into alternating current.The voltage of civil power and storage battery all must pass through secondary or cubic transformation, just can obtain the power supply matched with subscriber terminal equipment, and in this process, electric energy loss is large, thus overall efficiency is low; Simultaneously because peripheral electron unit pieces is many, circuit is complicated, causes interelement mutually to disturb, failure rate is high, stability and reliability relatively low.
In recent years, along with telecommunications, UNICOM and mobile upgrading optical fiber, the equipment such as light cat need power supply, and family has a power failure and wireless fixed telephone phone just cannot be used to converse; Office space power-off causes being unable to get through on the telephone, notebook and computer be without network signal thus cannot normal office work; Wireless router, light cat, switch power-off cause mobile phone, panel computer not to use WIFI.Along with the requirement of people to quality of life is more and more higher, many users also install back-up source at home or in some small-sized Administrative Areas, and when occurring extremely cannot powering in order to civil power, the communication network of family or Administrative Area interrupts.
Modern back-up source is generally the back-up source of no-ningerse transformer, idle, directly removes the AC/DC rectifier converter in mains passage, DC/DC converter, DC/AC inverter; Remove the DC/DC booster converter in storage battery direct current channel, DC/DC recharging converter and DC/AC inverter; After removing these five kinds of power inverters, whole back-up source is remaining static switch, storage battery and charge controller thereof only, when civil power is normal, forms direct current supplying power for outside by civil power after reorganizer, when mains failure, directly powered to subscriber terminal equipment by storage battery.
Existing Chinese patent literature CN1750355A discloses a kind of green back-up source, comprise storage battery, rectifier, sinusoidal cutting level, capability correction level, inverter stage and filtering stage, civil power not filtering by rectifier paraphase, after obtaining monolateral sinusoidal voltage, keep first-harmonic composition wherein, when civil power is less than or equal to rated value, with power adjusting level, power factor correction and voltage compensation are carried out to monolateral sinusoidal voltage; When civil power is too high, adopt sinusoidal cutting level, the partial feedback exceeding rated value is carried out the voltage compensation of input voltage to input stage with this, then carry out power factor correction in monolateral sinusoidal voltage; When commercial power interruption, relay switches to storage battery power supply, by sine cutting level, storage battery direct current is cut into monolateral sinusoidal voltage and carry out voltage compensation, and the remainder of lower for cutting in battery tension monolateral sinusoidal voltage is fed back to input, by the monolateral sinusoidal voltage after low-voltage compensation, be reduced into sinewave output voltage by inverter stage again, be smoothed to direct voltage by filtering stage.
In fact, the current electrical network quality of power supply can meet the demand of general domestic consumer, and required power does not correct; Because the terminal equipment in modern times is all with the power supply adaptor of self, i.e. rectifier, terminal equipment inherently has the function that can control output amplitude according to the change of dispatch from foreign news agency, can reach the voltage stabilizing requirement of system, not need to add a reorganizer again; Above-mentioned technical scheme does not effectively control the discharge and recharge of storage battery, and the life-span that all can have a strong impact on storage battery is put in overcharging and crossing of storage battery; Meanwhile, in this technical scheme circuit, electronic component is many, and circuit is complicated, causes the distance of components and parts intensive, and the interference between components and parts is comparatively large, thus affect the stability of circuit and reliability not high; Therefore, need, on the basis of the existing terminal equipment of public users, to utilize Modern Power Electronic Devices, develop and a kind ofly design brief, stability and the high back-up power source charging-dischargingcontrol control circuit of reliability.
Summary of the invention
Technical problem to be solved by this invention is that existing standby power source control circuit electronic component is many, and circuit is complicated, the problem that stability and reliability are not high, thus provides a kind of and design brief, stability and the high back-up power source charging-dischargingcontrol control circuit of reliability.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of back-up power source charging-dischargingcontrol control circuit, comprising:
DC power supplier, comprises an output, and described DC power supplier is used for externally providing direct current;
Electrical storage device, comprises an input and an output, and described electrical storage device is used for externally providing direct current;
Power supply modular converter, comprise the galvanic first input end for receiving the output of described DC power supplier, for receiving galvanic second input and an output of the output of described electrical storage device, the first input end of described power supply modular converter is connected with the output of described DC power supplier, for receiving the direct current that described DC power supplier provides; Second input of described power supply modular converter is connected with the output of described electrical storage device, for receiving the direct current that described electrical storage device provides; The output of described power supply modular converter is connected with subscriber terminal equipment; Described power supply modular converter is for controlling described DC power supplier and described electrical storage device carries out power supply conversion, when described DC power supplier externally provides direct current, the direct current of described DC power supplier is supplied to subscriber terminal equipment by described power supply modular converter, when described DC power supplier does not externally provide direct current, the direct current of described electrical storage device is supplied to subscriber terminal equipment by described power supply modular converter;
Electrical storage device charge control module, comprise an input and an output, the input of described electrical storage device charge control module is connected with the output of described DC power supplier, for receiving the direct current that described DC power supplier provides; The output of described electrical storage device charge control module is connected with the input of described electrical storage device, whether is in charged state for controlling described electrical storage device; When DC power supplier externally provides direct current, the voltage of described electrical storage device charge control module to described electrical storage device detects, if the voltage of described electrical storage device is less than preset upper limit voltage lower threshold value, the output of described electrical storage device charge control module exports direct current to the input of described electrical storage device, if the voltage of described electrical storage device is greater than or equal to described preset upper limit voltage upper threshold value, the output of described electrical storage device charge control module stops exporting direct current to the input of described electrical storage device;
Electrical storage device control of discharge module, comprises an input, and the input of described electrical storage device control of discharge module is connected with the output of described electrical storage device; When described electrical storage device externally provides direct current, the voltage of described electrical storage device control of discharge module to described electrical storage device detects, if the voltage of described electrical storage device is less than or equal to pre-determined lower limit voltage, described in described electrical storage device control of discharge module controls, the output of electrical storage device does not externally export direct current, if the voltage of described electrical storage device is greater than described pre-determined lower limit voltage, described in described electrical storage device control of discharge module controls, the output of electrical storage device externally exports direct current.
Described electrical storage device control of discharge module comprises under-voltage detection control unit and under-voltage protection unit.
Described under-voltage detection control unit, comprises an input and an output, the input of described under-voltage detection control unit as described electrical storage device control of discharge module input termination described in the output of electrical storage device; Described under-voltage detection control unit is for detecting the voltage of described electrical storage device; when the voltage of described electrical storage device is less than or equal to described pre-determined lower limit voltage; described under-voltage detection control unit is to described under-voltage protection unit output action signal; when the voltage of described electrical storage device is greater than described pre-determined lower limit voltage, described under-voltage detection control unit exports to described under-voltage protection unit signal of being failure to actuate.
Described under-voltage protection unit, comprises an input, the output of under-voltage detection control unit described in the input termination of described under-voltage protection unit, for receiving the output signal of described under-voltage detection control unit; When described under-voltage protection unit receives the actuating signal of described under-voltage detection control unit output; the action of described under-voltage protection unit thus control described electrical storage device stop externally providing direct current; when described under-voltage protection unit receive that described under-voltage detection control unit exports be failure to actuate signal time; described under-voltage protection unit is failure to actuate, and described electrical storage device continues externally to provide direct current.
Described electrical storage device charge control module comprises direct-flow voltage regulation unit and voltage detecting control unit.
Described direct-flow voltage regulation unit, comprise an input and an output, the input of described direct-flow voltage regulation unit is connected with the output of described DC power supplier, the galvanic voltage constant of described direct-flow voltage regulation unit for keeping DC power supplier to export, and provide direct current to voltage detecting control unit.
Described voltage detecting control unit, comprise the galvanic first input end for receiving the output of described DC power supplier, for receiving galvanic second input and an output of the output of described direct-flow voltage regulation unit, the first input end of described voltage detecting control unit is connected with the output of described DC power supplier, for receiving the direct current that described DC power supplier exports, second input of described voltage detecting control unit is connected with the output of described direct-flow voltage regulation unit, for receiving the direct current of described direct-flow voltage regulation unit output as working power, electrical storage device described in the output termination of described voltage detecting control unit, described voltage detecting control unit is for detecting the voltage of electrical storage device and controlling the charging of described electrical storage device, when upper threshold value lower than preset upper limit voltage lower threshold value of the voltage of described electrical storage device, described voltage detecting control unit sends charging signals, the backward described electrical storage device charging of the direct current transformation that described DC power supplier is exported, when described electrical storage device voltage higher than or when equaling the lower threshold value of preset upper limit voltage upper threshold value, described voltage detecting control unit sends and stops filling signal, control described DC power supplier to stop charging to described electrical storage device.
Described power supply modular converter comprises diode D7, light-emitting diode D8, resistance R11, relay J 3, J4, J5, relay J 4 transfer contact 2, relay J 5 transfer contact 2, the positive pole of diode D7, the negative pole of light-emitting diode D8, relay J 3, J4, J5 coil one end, the normally opened contact of described relay J 4 transfer contact 2 connects the rear common first input end negative pole as described power supply modular converter and connects described DC power supplier negative pole of output end, the positive pole of described light-emitting diode D8 is connected with one end of resistance R11, the resistance R11 other end, the negative pole of diode D7, relay J 3, J4, the other end of J5 coil, the normally opened contact of described relay J 5 transfer contact 2 connects described DC power supplier output head anode as the first input end positive pole of described power supply modular converter, the normally-closed contact of described relay J 5 transfer contact 2 connects the output head anode of described electrical storage device as the second input anode of described power supply modular converter, the normally-closed contact of described relay J 4 transfer contact 2 is connected with the negative pole of output end of described electrical storage device as the second input cathode of described power supply modular converter, subscriber terminal equipment described in the common output termination as described power supply modular converter after the common of relay J 5 transfer contact 2 is connected with the common of relay J 4 transfer contact 2.
Described under-voltage detection control unit comprises resistance R20, R18, R21, R19, electric capacity C11, C12, polar capacitor C13, C14, diode D11, D12, D14, triode Q2, relay J 1, controllable silicon DR1; Described under-voltage protection unit comprise magnetic latching relay J2, relay J 1 transfer contact 1,2, relay J 3 transfer contact 1,2; The normally opened contact of one end of one end of described resistance R18, one end of described electric capacity C11, the positive pole of described diode D14, described resistance R20, one end of described relay J 1 coil, described relay J 1 transfer contact 1 connects the rear common input as electrical storage device control of discharge module and is connected with the output of described electrical storage device; Jointly be connected with the base stage of described triode Q2 after one end connection of the negative pole of described diode D14, one end of described resistance R19, described electric capacity C12, the emitter of the other end of described resistance R18, the other end of described electric capacity C11, the other end of described resistance R19, the other end of described electric capacity C12, described triode Q2 connects rear common ground; Jointly be connected with the other end of described resistance R20 after the control pole connection of the collector electrode of described triode Q2, one end of described resistance R21, the positive pole of described polar capacitor C13, described controllable silicon DR1, common ground after the other end of described resistance R21 is connected with the negative pole of the negative pole of described polar capacitor C13, described controllable silicon DR1; The other end of described relay J 1 coil is connected with the positive pole of described diode D11, the positive pole of described diode D12 simultaneously, the negative pole of described diode D11 is connected with the positive pole of described controllable silicon DR1, the negative pole of described diode D12 is connected with the positive pole of described polar capacitor C14, and the negative pole of described polar capacitor C14 is connected rear common ground with the normally opened contact of described relay J 1 transfer contact 2; The common of described relay J 1 transfer contact 2 connects the normally-closed contact of described relay J 3 transfer contact 2, the common of described relay J 3 transfer contact 2 connects one end of described magnetic latching relay J2, the common of relay J 3 transfer contact 1 described in another termination of described magnetic latching relay J2, the normally opened contact ground connection of described relay J 3 transfer contact 1, the normally-closed contact of described relay J 3 transfer contact 1 connects the common of described relay J 1 transfer contact 1.
Described electrical storage device comprises storage power, fuse F2, magnetic latching relay J2 transfer contact 1, relay J 4 transfer contact 1; The output head anode of described storage power is connected with one end of described fuse F2, the other end of described fuse F2 is connected with the common of the transfer contact 1 of magnetic latching relay J2, after the normally-closed contact of the transfer contact 1 of described magnetic latching relay J2, the common of described relay J 4 transfer contact 1 connect, the common output as described electrical storage device externally exports direct current, and the normally-closed contact of described relay J 4 transfer contact 1 is connected with the normally-closed contact of described relay J 5 transfer contact 2; The negative pole of output end of the normally opened contact of the transfer contact 1 of described magnetic latching relay J2, described storage power connects rear common ground; The normally opened contact of described relay J 4 transfer contact 1 is connected with the output of described electrical storage device charge control module as the input of described electrical storage device.
Described electrical storage device control of discharge module also comprises the debugging unit for debugging by described under-voltage detection control unit electric current, and described debugging unit comprises resistance R16, R17; One end of described resistance R16 is connected with the normally opened contact of described relay J 1 transfer contact 1 as the input of described debugging unit, the other end of described resistance R16 is connected with one end of described resistance R17, and the described resistance R17 other end is connected with the positive pole of described diode D14 as the output of described debugging unit.
Described back-up power source charging-dischargingcontrol control circuit also comprises driver module, described driver module comprises for driving the first driver element of described power supply modular converter and for driving the second driver element of described electrical storage device control of discharge module, described first driver element comprises resistance R10 and polar capacitor C10, and described second driver element comprises polar capacitor C8 and resistance R15;
The positive pole of one end of described resistance R10, described polar capacitor C10 connects the output head anode that the rear common input anode as described first driver element connects described DC power supplier, for receiving the DC power supply that described DC power supplier provides; The negative pole of the other end of described resistance R10, described polar capacitor C10 connects one end that the rear common negative pole of output end as described first driver element meets described relay J 3, J4, J5, the negative pole of output end of DC power supplier described in another termination of described relay J 3, J4, J5; The normally opened contact of relay J 3 transfer contact 2 described in the common output termination as described second driver element after the negative pole of one end of resistance R15, polar capacitor C8 connects, the output of electrical storage device charge control module described in the common input termination as described second driver element after the positive pole of the other end of resistance R15, described polar capacitor C8 connects.
Described back-up power source charging-dischargingcontrol control circuit also comprises and is used to indicate the discharge and recharge indicating member whether described electrical storage device is in charging and discharging state, described discharge and recharge indicating member comprises the transfer contact 1 of relay J 5, Light-Emitting Diode D8, D9, electric capacity C9, resistance R13, R12; The common of the transfer contact 1 of described relay J 5 is connected with the output of described electrical storage device as the input of described discharge and recharge indicating member, the normally opened contact of the transfer contact 1 of described relay J 5 is connected with one end of described resistance R12, and the other end of described resistance R12 is connected with the positive pole of described Light-Emitting Diode D8; One end of described electric capacity C9 is connected the rear common output as described discharge and recharge indicating member and is connected with the input of electrical storage device control of discharge module with the normally-closed contact of one end of described resistance R13, the transfer contact 1 of described relay J 5, the other end ground connection of described electric capacity C9, the other end of described resistance R13 is connected with the positive pole of described Light-Emitting Diode D9, and the negative pole of described Light-Emitting Diode D8, D9 connects rear common ground.
Described electrical storage device control of discharge module also comprises and is used to indicate the under-voltage indicating member whether described electrical storage device is in under-voltage condition, described under-voltage indicating member comprises resistance R14, light-emitting diode D10, described resistance R14 one end is connected with the normally opened contact of described magnetic latching relay J2 transfer contact 1, the positive pole of Light-Emitting Diode D10 described in another termination of described resistance R14, the minus earth of described light-emitting diode D10.
Export to described direct-flow voltage regulation unit after the described electrical storage device charge control module direct current also comprised for exporting DC power supplier carries out secondary rectification, and judge that described DC power supplier exports the rectification unit of galvanic both positive and negative polarity, described rectification unit comprises diode D1, D2, D3, D4, described diode D1, D2, D3, D4 forms full bridge rectifier, described rectification unit comprises first input end, second input, cathode output end and cathode output end, the positive pole of described diode D1 and the link of described diode D2 negative pole connect the negative pole of output end of described DC power supplier as the first input end of described rectification unit, the positive pole of described diode D3 and the link of described diode D4 negative pole input the output head anode of DC power supplier described in termination as second of described rectification unit, the negative pole of described diode D1 and the link of described diode D3 negative pole connect the input of described direct-flow voltage regulation unit as the cathode output end of described rectification unit simultaneously, the first input end of described voltage detecting control unit, the positive pole of described diode D2 and the link of described diode D4 positive pole are as the cathode output end ground connection of described rectification unit.
Described direct-flow voltage regulation unit comprises voltage stabilizing chip 7809, polar capacitor C1, C2, electric capacity C3, C4; One end of the Vin pin of described voltage stabilizing chip 7809, the positive pole of described polar capacitor C1 and described electric capacity C4 links together jointly, jointly as the output of the input of described direct-flow voltage regulation unit, described DC power supplier, the first input end of described voltage detecting control unit; One end common ground of the other end of described electric capacity C4, the negative pole of described polar capacitor C1, the GND pin of described voltage stabilizing chip 7809, the negative pole of described polar capacitor C2 and described electric capacity C3, the Vout pin of the other end of described electric capacity C3, the positive pole of described polar capacitor C2 and described voltage stabilizing chip 7809 links together jointly, and the Vout pin of described voltage stabilizing chip 7809 is that the output of described direct-flow voltage regulation unit is connected with the second input of described voltage detecting control unit;
Described voltage detecting control unit comprises NE556 chip, transformer T2, field effect transistor VD, resistance R1, R2, R3, R4, R5, R6, R8, R9, electric capacity C5, C6, C7, diode D5;
The second input that 13 pins of described NE556 chip link together as described voltage detecting control unit through 14 pins of resistance R1 and NE556 chip, 4 pins is connected with the output of described direct-flow voltage regulation unit, 12 pins of described NE556 chip are connected with 13 pins of described NE556 chip through described resistance R2, 11 pins of described NE556 chip are through described electric capacity C7 ground connection, 10 pins of described NE556 chip are connected with 5 pins, after 8 pins of described NE556 chip are connected with 12 pins of described NE556 chip common after described electric capacity C5 ground connection, 3 pins of described NE556 chip are through described electric capacity C6 ground connection, 9 pins of described NE556 chip jointly connect the grid G of described field effect transistor after described resistance R3 is connected with one end of described resistance R6, the other end ground connection of described resistance R6, the drain D of described field effect transistor is connected with second input of described transformer T2, and the first input end of described transformer T2 is connected with the output of described DC power supplier as the first input end of described voltage detecting control unit, the positive pole of described diode D5 is connected with first output of described transformer T2, and one end of the negative pole of described diode D5, one end of described resistance R8, described resistance R9 links together and is jointly connected with the input anode of described electrical storage device as the output head anode of described voltage detecting control unit, one end of the common connecting resistance R4 of 6 pin of the described resistance R8 other end and described NE556 chip, 2 pins of the described resistance R9 other end and described NE556 chip connect one end of described resistance R5 jointly, the source S of the other end of described resistance R4, the other end of resistance R5, described field effect transistor, 7 pins of described NE556 chip, second output of transformer T2 link together, and the negative pole of output end jointly as described voltage detecting control unit is connected with the input cathode of described electrical storage device.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) a kind of back-up power source charging-dischargingcontrol control circuit of the present invention, comprise DC power supplier, electrical storage device, power supply modular converter, electrical storage device charge control module and electrical storage device control of discharge module, when described DC power supplier provides DC power supply to subscriber terminal equipment, electrical storage device charge control module detects the voltage of electrical storage device, if the voltage of electrical storage device is greater than or equal to preset upper limit voltage lower threshold value, electrical storage device charge control module controls electrical storage device and stops charging, if the voltage of electrical storage device is less than preset upper limit voltage upper threshold value, electrical storage device charge control module exports direct current to electrical storage device, when described DC power supplier does not externally provide DC power supply, described power supply modular converter controls described electrical storage device and powers to subscriber terminal equipment, electrical storage device control of discharge module detects the voltage of electrical storage device, if the voltage of described electrical storage device is greater than described pre-determined lower limit voltage, described in described electrical storage device control of discharge module controls, the output of electrical storage device externally exports direct current, if the voltage of described electrical storage device is less than or equal to pre-determined lower limit voltage, electrical storage device described in described electrical storage device control of discharge module controls stops powering to subscriber terminal equipment, subscriber terminal equipment is maintained normally work and protect the unlikely damage of its software and hardware.Circuit structure of the present invention is simple, and cost is low, is on the basis at public users existing equipment, utilizes Modern Power Electronic Devices, develops a kind of stability and the relatively high back-up power source charging-dischargingcontrol control circuit of reliability.It is complicated that above-mentioned back-up power source charging-dischargingcontrol control circuit effectively prevent back-up power source charging-dischargingcontrol control circuit in prior art, and unreasonable structure, causes the problem that the stability of circuit and reliability are not high.
(2) back-up power source charging-dischargingcontrol control circuit of the present invention, the core of described electrical storage device charge and discharge control module is 556 timing circuits, described 556 timing circuits comprise two 555 timers, first 555 timer and peripheral electron element form a comparator, resistance R8, the Signal transmissions detected to described comparator to judge whether to stop charging by R9 respectively, output voltage and charge initiation voltage simultaneously, by changing resistance R8, R9 regulates its voltage swing, whether the oscillator that second 555 timer and peripheral electron element are formed carrys out the work of control transformer T2 thus controls to charge to electrical storage device.Relatively for prior art, less electronic devices and components are used to design, circuit is simple, in the circuit board of same size, the distribution space of electronic devices and components is relatively large, interference is each other less, thus it is complicated to effectively prevent charging control circuit circuit in prior art, the problem that stability and reliability are not high.
(3) back-up power source charging-dischargingcontrol control circuit of the present invention, when described electrical storage device externally provides DC power supply, electrical storage device described in described electrical storage device control of discharge module controls externally provides galvanic and detects the voltage of described electrical storage device simultaneously, if the voltage of described electrical storage device is less than or equal to pre-determined lower limit voltage, described in described electrical storage device control of discharge module controls, electrical storage device does not externally export DC power supply, the protection unlikely over-discharge can of electrical storage device and can affect useful life of electrical storage device; Can be limited the electric current of described under-voltage detection control unit by the resistance R16 changing debugging unit, arrange the pre-determined lower limit voltage of described electrical storage device, the technical program is simple, flexibly and easily simultaneously.
(4) back-up power source charging-dischargingcontrol control circuit of the present invention, described backup circuit also comprises energy-conservation driver module, described energy-conservation driver module comprises for driving the first driver element of described power supply modular converter and for driving the second driver element of described under-voltage protection unit electrical storage device control of discharge module, described driver module is by comprising polar capacitor and resistance forms, inverse electromotive force when utilizing polar capacitor to discharge is to strengthen the energy-conservation drive current of relay coil, accelerate the responsiveness of transfer contact, resistance is utilized to reduce the electric current flowing through relay upon actuation, reach and reduce relay power consumption, play energy-conservation effect, the reliability of circuit is improve while reducing power consumption.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below in conjunction with accompanying drawing, the present invention is further detailed explanation, wherein,
Fig. 1 is the structured flowchart of back-up power source charging-dischargingcontrol control circuit of the present invention;
Fig. 2 is the johning knot composition of back-up power source charging-dischargingcontrol control circuit described in embodiment 1;
Fig. 3 is the johning knot composition of back-up power source charging-dischargingcontrol control circuit described in embodiment 2;
Fig. 4 is the johning knot composition of back-up power source charging-dischargingcontrol control circuit described in embodiment 3;
Fig. 5 is the johning knot composition of back-up power source charging-dischargingcontrol control circuit described in embodiment 4;
Fig. 6 is the johning knot composition of back-up power source charging-dischargingcontrol control circuit described in embodiment 5;
Fig. 7 is the back-up source charge control module circuit connection structure figure of back-up power source charging-dischargingcontrol control circuit described in embodiment 1.
Reference numeral: 1-DC power supplier, 2-electrical storage device, 3-powers modular converter, 4-electrical storage device charge control module, 5-electrical storage device control of discharge module, 61-first driver element, 62-second driver element, 7-debugging unit, 8-discharge and recharge indicating member, 9-is under-voltage indicating member, 101-direct-flow voltage regulation unit, 102-voltage detecting control unit, 103-rectification unit.
Embodiment
Embodiment 1:
The present embodiment provides a kind of back-up power source charging-dischargingcontrol control circuit, and as shown in Figure 1, it comprises DC power supplier 1, electrical storage device 2, power supply modular converter 3, electrical storage device charge control module 4 and electrical storage device control of discharge module 5 to its structured flowchart.
Described DC power supplier 1, comprises an output, and described DC power supplier 1 is for externally providing direct current.
In the present embodiment, described DC power supplier 1 comprises AC power and rectifier, wherein, described rectifier is used for AC rectification to become direct current, described rectifier comprises an input and an output, the input of described rectifier is connected with the output of described AC power, and the output of described rectifier externally exports direct current.
Described electrical storage device 2, comprises an input and an output, and described electrical storage device is used for externally providing direct current.
As Fig. 2, described electrical storage device 2 comprises storage power, fuse F2, magnetic latching relay J2 transfer contact 1, relay J 4 transfer contact 1; The output head anode of described storage power is connected with one end of described fuse F2, the other end of described fuse F2 is connected with the common of the transfer contact 1 of magnetic latching relay J2, after the normally-closed contact of the transfer contact 1 of described magnetic latching relay J2, the common of described relay J 4 transfer contact 1 connect, the common output as described electrical storage device externally exports direct current, and the normally-closed contact of described relay J 4 transfer contact 1 is connected with the normally-closed contact of described relay J 5 transfer contact 2; The negative pole of output end of the normally opened contact of the transfer contact 1 of described magnetic latching relay J2, described storage power connects rear common ground; The normally opened contact of described relay J 4 transfer contact 1 is connected with the output of described electrical storage device charge control module 4 as the input of described electrical storage device 2.
In the present embodiment, described storage power is lithium battery.
As other execution modes, described storage power can be nickel-cadmium cell, sodium-sulphur battery, lead-acid battery, nickel-zinc cell etc.
Described power supply modular converter 3, comprise the galvanic first input end for receiving the output of described DC power supplier 1, for receiving galvanic second input and an output of the output of described electrical storage device 2, the first input end of described power supply modular converter 3 is connected with the output of described DC power supplier 1, for receiving the direct current that described DC power supplier 1 provides; Second input of described power supply modular converter 3 is connected with the output of described electrical storage device 2, for receiving the direct current that described electrical storage device 2 provides; The output of described power supply modular converter 3 is connected with subscriber terminal equipment; Described power supply modular converter 3 carries out power supply conversion for controlling described DC power supplier 1 with described electrical storage device 2, when described DC power supplier 1 externally provides direct current, the direct current of described DC power supplier 1 is supplied to subscriber terminal equipment by described power supply modular converter 3, when described DC power supplier 1 does not externally provide direct current, the direct current of described electrical storage device 2 is supplied to subscriber terminal equipment by described power supply modular converter 3.
In the present embodiment, as shown in Figure 2, described power supply modular converter 3 comprises diode D7, light-emitting diode D8, resistance R11, relay J 3, J4, J5, relay J 4 transfer contact 2, relay J 5 transfer contact 2, the positive pole of diode D7, the negative pole of light-emitting diode D8, relay J 3, J4, after J5 coil one end connects, the common first input end negative pole as described power supply modular converter 3 connects described DC power supplier 1 negative pole of output end, the positive pole of described light-emitting diode D8 is connected with one end of resistance R11, the resistance R11 other end, the negative pole of diode D7, relay J 3, J4, the other end of J5 coil, the normally opened contact of described relay J 5 transfer contact 2 connects described DC power supplier 1 output head anode as the first input end positive pole of described power supply modular converter 3, the normally opened contact of described relay J 4 transfer contact 2 connects described DC power supplier 1 negative pole of output end as the first input end negative pole of described power supply modular converter 3, the normally-closed contact of described relay J 5 transfer contact 2 inputs the output head anode of electrical storage device 2 described in termination as second of described power supply modular converter 3, the normally-closed contact of described relay J 4 transfer contact 2 is connected with the negative pole of output end of described electrical storage device 2 as the second input cathode of described power supply modular converter, the common of relay J 5 transfer contact 2 and the common of relay J 4 transfer contact 2 jointly as described power supply modular converter 3 output termination described in subscriber terminal equipment.
Electrical storage device charge control module 4, comprises an input and an output, and the input of described electrical storage device charge control module 4 is connected with the output of described DC power supplier 1, for receiving the direct current that described DC power supplier 1 provides; The output of described electrical storage device charge control module 4 is connected with the input of described electrical storage device, whether is in charged state for controlling described electrical storage device; When DC power supplier 1 externally provides direct current, the voltage of described electrical storage device charge control module 4 to described electrical storage device 2 detects, if the voltage of described electrical storage device 2 is less than preset upper limit voltage lower threshold value, the output of described electrical storage device charge control module 4 exports direct current to the input of described electrical storage device 2, if the voltage of described electrical storage device 2 is greater than or equal to described preset upper limit voltage upper threshold value, the output of described electrical storage device charge control module 4 stops exporting direct current to the input of described electrical storage device 2.
In the present embodiment, described electrical storage device charge control module 4 comprises direct-flow voltage regulation unit 101 and voltage detecting control unit 102.
Described direct-flow voltage regulation unit 101, comprise an input and an output, the input of described direct-flow voltage regulation unit 101 is connected with the output of described DC power supplier, the described galvanic voltage constant of described direct-flow voltage regulation unit 101 for keeping DC power supplier to export, and provide direct current to voltage detecting control unit 102
In the present embodiment, as shown in Figure 7, described direct-flow voltage regulation unit 101 comprises voltage stabilizing chip 7809, polar capacitor C1, C2, electric capacity C3, C4, one end of the Vin pin of described voltage stabilizing chip 7809, the positive pole of described polar capacitor C1 and described electric capacity C4 links together jointly, as the first input end of the input of described direct-flow voltage regulation unit 101 and the output of described DC power supplier 1 and described voltage detecting control unit 102, the other end of described electric capacity C4, the negative pole of described polar capacitor C1, the GND pin of described voltage stabilizing chip 7809, the negative pole of described polar capacitor C2 and one end common ground of described electric capacity C3, the other end of described electric capacity C3, the positive pole of described polar capacitor C2 and the Vout pin of described voltage stabilizing chip 7809 link together jointly, the Vout pin of described voltage stabilizing chip 7809 is that the output of described direct-flow voltage regulation unit 101 is connected with the second input of described voltage detecting control unit 102, the direct current that described voltage stabilizing chip 7809 exports 9V is the NE556 chip power supply of described voltage detecting control unit 103, electric capacity C1, C2, C3, C4 forms filter circuit, the interference of shielding outer signals.
As shown in Figure 7, described voltage detecting control unit 102, comprise the galvanic first input end for receiving the output of described DC power supplier 1, for receiving galvanic second input and an output of the output of described direct-flow voltage regulation unit 101, the first input end of described voltage detecting control unit 102 is connected with the output of described DC power supplier, for receiving the direct current that described DC power supplier exports, second input of described voltage detecting control unit 102 is connected with the output of described direct-flow voltage regulation unit 101, for receiving the direct current of described direct-flow voltage regulation unit 101 output as working power, electrical storage device 2 described in the output termination of described voltage detecting control unit 102, described voltage detecting control unit 102 is for detecting the voltage of electrical storage device 2 and controlling the charging of described electrical storage device 2, when the voltage of described electrical storage device 2 is lower than preset upper limit voltage lower threshold value, described voltage detecting control unit 102 sends charging signals, the backward described electrical storage device 2 of the direct current transformation described DC power supplier exported charges, when described electrical storage device 2 voltage higher than or when equaling preset upper limit voltage upper threshold value, described voltage detecting control unit 102 sends and stops filling signal, control described DC power supplier 1 to stop charging to described electrical storage device 2.
In the present embodiment, as shown in Figure 7, described voltage detecting control unit 102 comprises NE556 chip, transformer T2, field effect transistor VD, resistance R1, R2, R3, R4, R5, R6, R8, R9, electric capacity C5, C6, C7, diode D5, the second input that 13 pins of described NE556 chip link together as described voltage detecting control unit 102 through 14 pins of resistance R1 and NE556 chip, 4 pins is connected with the output of described direct-flow voltage regulation unit 101, 12 pins of described NE556 chip are connected with 13 pins of described NE556 chip through described resistance R2, 11 pins of described NE556 chip are through described electric capacity C7 ground connection, 10 pins of described NE556 chip are connected with 5 pins, after 8 pins of described NE556 chip are connected with 12 pins of described NE556 chip common after described electric capacity C5 ground connection, 3 pins of described NE556 chip are through described electric capacity C6 ground connection, 9 pins of described NE556 chip jointly connect the grid G of described field effect transistor after described resistance R3 is connected with one end of described resistance R6, the other end ground connection of described resistance R6, the drain D of described field effect transistor is connected with second input of described transformer T2, and the first input end of described transformer T2 is connected with the output of described DC power supplier as the first input end of described voltage detecting control unit 102, the positive pole of described diode D5 is connected with first output of described transformer T2, and the output head anode that one end of the negative pole of described diode D5, one end of described resistance R8, described resistance R9 links together jointly as described voltage detecting control unit 102 is connected with the input anode of described electrical storage device 2, one end of the common connecting resistance R4 of 6 pin of the described resistance R8 other end and described NE556 chip, 2 pins of the described resistance R9 other end and described NE556 chip connect one end of described resistance R5 jointly, the source S of the other end of described resistance R4, the other end of resistance R5, described field effect transistor, 7 pins of described NE556 chip, second output of transformer T2 link together jointly, and the negative pole of output end jointly as described voltage detecting control unit 102 is connected with the input cathode of described electrical storage device 2.
As shown in Figure 7, the core of described voltage detecting control unit 102 is made up of 556 timing circuits, described 556 timing circuits comprise two 555 timers, first 555 timer pin comprises 1 to No. 6 pins of described NE556 chip, described first 555 timer and described divider resistance R8, R9, described resistance R4, R5 forms the electric voltage observation circuit of described electrical storage device 2, second 555 timer pin comprises 8 to No. 13 pins of described NE556 chip, described second 555 timer and described electric capacity C5, described resistance R1, R2 forms an oscillator to control the ON-OFF state of described field effect transistor VD, the direct current that described DC power supplier 1 exports is become square wave, square wave amplitude is improved again through described transformer T2, be rectified into direct current by diode D5 to charge to storage power.
Described comparator operation principle: when described resistance R9 detects described lithium battery voltage lower than preset upper limit voltage lower threshold value, described first 555 timer output end 5 pin are high level, putting described second 555 timer reset 10 pin is high level, described second 555 timer normally work, control described transformer T2 to work, the DC conversion described DC power supplier exported becomes the voltage matched with the electric pressure of described electrical storage device 2, and lithium battery charges normal; When described resistance R8 detects that lithium battery voltage is elevated to upper voltage limit, described first 555 timer export as low level, putting described second 555 timer reset 10 pin is low level, described oscillator quits work, described field effect transistor VD is in cut-off state, control described transformer T2 to quit work, described lithium battery stops charging.
Described oscillator operation principle: when described second 555 timer reset 10 pin are high level, the normal operating circuit of described oscillator is connected, described electric capacity C5 charges, when described electric capacity C5 voltage Vc reaches 2/3Voc, Vcc is described 556 chip operating voltages, described second 555 timer output end 5 pin are low level, described field effect transistor gate-source voltage Vgs is 0, its drain current Id is very little, drain-source pole is ended, described second 555 timers inner triode T conducting simultaneously, described electric capacity C5 is discharged by described resistance R2 and described triode T, Vc declines, when Vc drops to 1/3Vcc, described second 555 timer output end 5 pin upset are high level, electric discharge terminates, T2 ends, described field effect transistor Vgs increases, Id electric current increases, leak source conduction, by adjusting described electric capacity C5 and described resistance R1, the value of R2 just can form the oscillator of fixed frequency, the following formula of frequency computation part:
The core of described voltage detecting control unit 102 comprises 556 timing circuits, described 556 timing circuits comprise two 555 timers, described first 555 timer and peripheral electron element form a comparator, the Signal transmissions that detects is given described comparator by described resistance R8, R9 respectively, described comparator, by relatively judging whether to stop charging, regulates preset upper limit voltage upper threshold value and preset upper limit voltage lower threshold value by changing described resistance R8, R9 resistance simultaneously respectively; Whether whether the oscillator that described second 555 timer and peripheral electron element are formed worked by control transformer thus control to charge to electrical storage device 2.Relatively for prior art, less electronic devices and components are used to design, circuit is simple, in the circuit board of same size, the distribution space of electronic devices and components is relatively large, interference is each other less, thus it is complicated to effectively prevent charging control circuit circuit in prior art, the problem that stability and reliability are not high.
In the present embodiment, described electrical storage device control of discharge module 5 comprises under-voltage detection control unit and under-voltage protection unit.
Described under-voltage detection control unit, comprises an input and an output, the input of described under-voltage detection control unit as described electrical storage device control of discharge module 5 input termination described in the output of electrical storage device 2; Described under-voltage detection control unit is for detecting the voltage of described electrical storage device 2; when the voltage of described electrical storage device 2 is less than or equal to described pre-determined lower limit voltage; described under-voltage detection control unit is to described under-voltage protection unit output action signal; when the voltage of described electrical storage device 2 is greater than described pre-determined lower limit voltage, described under-voltage detection control unit exports to described under-voltage protection unit signal of being failure to actuate.
Described under-voltage protection unit, comprises an input, the output of under-voltage detection control unit described in the input termination of described under-voltage protection unit, for receiving the output signal of described under-voltage detection control unit; When described under-voltage protection unit receives the actuating signal of described under-voltage detection control unit output; described under-voltage protection unit action thus control described electrical storage device 2 and stop externally providing direct current; when described under-voltage protection unit receive that described under-voltage detection control unit exports be failure to actuate signal time; described under-voltage protection unit is failure to actuate, and described electrical storage device 2 continues externally to provide direct current.
As Fig. 2, described under-voltage detection control unit comprises resistance R20, R18, R21, R19, electric capacity C11, C12, polar capacitor C13, C14, diode D11, D12, D14, triode Q2, relay J 1, controllable silicon DR1; Described under-voltage protection unit comprise magnetic latching relay J2, relay J 1 transfer contact 1,2, relay J 3 transfer contact 1,2; The normally opened contact of one end of one end of described resistance R18, one end of described electric capacity C11, the positive pole of described diode D14, described resistance R20, one end of described relay J 1 coil, described relay J 1 transfer contact 1 connects the rear common input as electrical storage device control of discharge module 5 and is connected with the output of described electrical storage device 2; Jointly be connected with the base stage of described triode Q2 after one end connection of the negative pole of described diode D14, one end of described resistance R19, described electric capacity C12, the emitter of the other end of described resistance R18, the other end of described electric capacity C11, the other end of described resistance R19, the other end of described electric capacity C12, described triode Q2 connects rear common ground; Jointly be connected with the other end of described resistance R20 after the control pole connection of the collector electrode of described triode Q2, one end of described resistance R21, the positive pole of described polar capacitor C13, described controllable silicon DR1, common ground after the other end of described resistance R21 is connected with the negative pole of the negative pole of described polar capacitor C13, described controllable silicon DR1; The other end of described relay J 1 coil is connected with the positive pole of described diode D11 and the positive pole of described diode D12 simultaneously, the negative pole of described diode D11 is connected with the positive pole of described controllable silicon DR1, the negative pole of described diode D12 is connected with the positive pole of described polar capacitor C14, and the negative pole of described polar capacitor C14 is connected rear common ground with the normally opened contact of described relay J 1 transfer contact 2; The common of described relay J 1 transfer contact 2 connects the normally-closed contact of described relay J 3 transfer contact 2, the common of described relay J 3 transfer contact 2 connects one end of described magnetic latching relay J2, the common of relay J 3 transfer contact 1 described in another termination of described magnetic latching relay J2, the normally opened contact ground connection of described relay J 3 transfer contact 1, the normally-closed contact of described relay J 3 transfer contact 1 connects the common of described relay J 1 transfer contact 1.
A kind of back-up power source charging-dischargingcontrol control circuit provided described in the present embodiment, when described DC power supplier 1 exports direct current, the relay J 3 of described power supply modular converter 3, J4, the coil of J5 is charged, described relay J 3, J4, the normally opened contact of J5 closes, powered to subscriber terminal equipment by described DC power supplier 1, the voltage of electrical storage device 2 is detected described in the voltage detection unit of simultaneously described electrical storage device charge control module 4, if the voltage of described electrical storage device 2 is greater than or equal to preset upper limit voltage upper threshold value, described electrical storage device 2 charge control module controls electrical storage device 2 and stops charging, if the voltage of described electrical storage device 2 is less than preset upper limit voltage lower threshold value, described electrical storage device charge control module 4 exports direct current to described electrical storage device 2, described electrical storage device 2 is made to be in charged state, when described DC power supplier 1 does not externally provide direct current, the relay J 3 of described power supply modular converter 3, J4, the coil losing electricity of J5, described relay J 3, J4, the normally-closed contact of J5 closes, described power supply modular converter 3 controls described electrical storage device 2 and powers to subscriber terminal equipment, described electrical storage device control of discharge module 5 detects the voltage of electrical storage device 2, if the voltage of described electrical storage device 2 is greater than described pre-determined lower limit voltage, the output that described electrical storage device control of discharge module 5 controls described electrical storage device 2 simultaneously externally exports direct current, if the voltage of described electrical storage device 2 is less than or equal to pre-determined lower limit voltage, described triode Q1 ends, the control pole of described controllable silicon DR1 has electric current to pass through, described controllable silicon DR1 conducting, described relay J 1 moment is charged, described magnetic latching relay J2 has reverse current to flow through under the effect of described relay J 1, the transfer contact 1 of described relay J 2 overturns, normally opened contact is switched to by normally-closed contact, described electrical storage device control of discharge module 5 controls described electrical storage device 2 and stops powering to subscriber terminal equipment, when described DC power supplier 1 exports direct current, described power supply modular converter 3 controls described DC power supplier 1 and powers to subscriber terminal equipment.
Embodiment 2:
On the basis of embodiment 1, the described electrical storage device control of discharge module 5 of described back-up power source charging-dischargingcontrol control circuit also comprises the debugging unit 7 for debugging by described under-voltage detection control unit electric current, as shown in Figure 3, described debugging unit 7 comprises resistance R16, R17; One end of described resistance R16 is connected with the normally opened contact of described relay J 1 transfer contact 1 as the input of described debugging unit 7, the other end of described resistance R16 is connected with one end of described resistance R17, and the described resistance R17 other end is connected with the positive pole of described diode D14 as the output of described debugging unit 7.The size of triode Q2 base current is defined through by changing resistance R16, the pre-determined lower limit voltage of described electrical storage device 2 is set, the method simple and flexible, is skillfully constructed, and can arrange different pre-determined lower limit voltage by changing described resistance R16 according to different electrical storage devices.
Back-up power source charging-dischargingcontrol control circuit of the present invention, when described electrical storage device 2 externally provides DC power supply, electrical storage device control of discharge module 5 detects the voltage of electrical storage device 2 and controls electrical storage device 2 and whether be in discharge condition, if the voltage of described electrical storage device 2 is less than or equal to pre-determined lower limit voltage, described electrical storage device control of discharge module 5 controls described electrical storage device 2 and does not externally export DC power supply, the protection unlikely over-discharge can of electrical storage device 2 thus affect useful life of electrical storage device 2; Can be limited the electric current of described under-voltage detection control unit by the resistance R16 changing debugging unit 7, arrange the pre-determined lower limit voltage of described electrical storage device 2, the technical program is simple, flexibly and easily simultaneously.
Embodiment 3:
On the basis of above-described embodiment, described back-up power source charging-dischargingcontrol control circuit also comprises driver module, described driver module comprises for driving the first driver element 61 of described power supply modular converter 3 and for driving the second driver element 62 of described electrical storage device control of discharge module 5, as shown in Figure 4, described first driver element 61 comprises resistance R10 and polar capacitor C10, and described second driver element 62 comprises polar capacitor C8 and resistance R15; The positive pole of one end of described resistance R10, described polar capacitor C10 connects the output head anode that the rear common input anode as described first driver element 61 connects described DC power supplier 1, for receiving the DC power supply that described DC power supplier provides; The negative pole of the other end of described resistance R10, described polar capacitor C10 after connecting the negative pole of output end of DC power supplier described in the common output termination as described first driver element 61 connect one end of described relay J 3, J4, J5, the negative pole of output end of DC power supplier described in another termination of described relay J 3, J4, J5; The normally opened contact of relay J 3 transfer contact 2 described in the common output termination as described second driver element 62 after the negative pole of one end of resistance R15, polar capacitor C8 connects, the output of electrical storage device charge control module 4 described in the common input termination as described second driver element 62 after the positive pole of the other end of resistance R15, described polar capacitor C8 connects.Inverse electromotive force when described first driver element 61 utilizes described polar capacitor C10 to discharge is to strengthen the energy-conservation drive current of relay coil, accelerate the responsiveness of transfer contact, described resistance R10 is utilized to reduce the electric current flowing through relay upon actuation, reach and reduce relay power consumption, play energy-conservation effect; Inverse electromotive force when described first driver element 62 utilizes described polar capacitor C10 to discharge, to strengthen the energy-conservation drive current of relay coil, accelerates the responsiveness of transfer contact.The reliability of circuit is improve while reducing power consumption.
Embodiment 4:
On the basis of above-described embodiment, described back-up power source charging-dischargingcontrol control circuit also comprises and is used to indicate the discharge and recharge indicating member discharge and recharge indicating member 8 that described electrical storage device 2 is in whether charging and discharging state, as shown in Figure 5, described discharge and recharge indicating member discharge and recharge indicating member 8 comprises the transfer contact 1 of relay J 5, Light-Emitting Diode D8, D9, electric capacity C9, resistance R13, R12; The common of the transfer contact 1 of described relay J 5 is connected with the output of described electrical storage device 2 as the input of described discharge and recharge indicating member discharge and recharge indicating member 8, the normally opened contact of the transfer contact 1 of described relay J 5 is connected with one end of described resistance R12, and the other end of described resistance R12 is connected with the positive pole of described Light-Emitting Diode D8; One end of described electric capacity C9 is connected the rear common output as described discharge and recharge indicating member discharge and recharge indicating member 8 and is connected with the input of electrical storage device control of discharge module 5 with the normally-closed contact of one end of described resistance R13, the transfer contact 1 of described relay J 5, the other end ground connection of described electric capacity C9, the other end of described resistance R13 is connected with the positive pole of described Light-Emitting Diode D9, and the negative pole of described Light-Emitting Diode D8, D9 connects rear common ground.When described light-emitting diode D8 is bright, represent that described electrical storage device 2 is in charged state; When described light-emitting diode D8 does not work, represent that described electrical storage device 2 is in stopping charged state; When described Light-Emitting Diode D9 is bright, represent that described electrical storage device 2 is in discharge condition; When described Light-Emitting Diode D9 does not work, represent that described electrical storage device 2 does not externally provide direct current.
Embodiment 5:
On the basis of above-described embodiment, described electrical storage device control of discharge module 5 also comprises and is used to indicate the under-voltage indicating member 9 whether described electrical storage device 2 is in under-voltage condition, as shown in Figure 6, described under-voltage indicating member 9 comprises resistance R14, light-emitting diode D10, described resistance R14 one end is connected with the normally opened contact of described magnetic latching relay J2 transfer contact 1, the positive pole of Light-Emitting Diode D10 described in another termination of described resistance R14, the minus earth of described light-emitting diode D10.When the voltage of described electrical storage device 2 is lower than pre-determined lower limit voltage, the normally opened contact of described magnetic latching relay J2 transfer contact closes, and described light-emitting diode D10 is bright, represents that described electrical storage device 2 is in under-voltage condition.
Embodiment 6:
On the basis of above-described embodiment, export to described direct-flow voltage regulation unit 101 after described electrical storage device charge control module 4 direct current also comprised for exporting DC power supplier carries out secondary rectification, and judge that described DC power supplier exports the rectification unit 103 of galvanic both positive and negative polarity.
As Fig. 7, described rectification unit 103 comprises diode D1, D2, D3, D4, described diode D1, D2, D3, D4 forms full bridge rectifier, described rectification unit 103 comprises first input end, second input, cathode output end and cathode output end, the positive pole of described diode D1 and the link of described diode D2 negative pole connect the negative pole of output end of described DC power supplier as the first input end of described rectification unit 103, the positive pole of described diode D3 and the link of described diode D4 negative pole input the output head anode of DC power supplier described in termination as second of described rectification unit 103, the negative pole of described diode D1 and the link of described diode D3 negative pole as described rectification unit 103 output termination described in the input of direct-flow voltage regulation unit 101, the first input end of described voltage detecting control unit 102, the positive pole of described diode D2 and the link of described diode D4 positive pole are as the cathode output end ground connection of described rectification unit 103.
A kind of back-up power source charging-dischargingcontrol control circuit of the present invention, comprise DC power supplier 1, electrical storage device 2, power supply modular converter 3, electrical storage device 2 charge control module and electrical storage device control of discharge module 5, when described DC power supplier 1 pair of subscriber terminal equipment provides DC power supply, electrical storage device charge control module 4 detects the voltage of electrical storage device 2, if the voltage of electrical storage device 2 is greater than or equal to preset upper limit voltage upper threshold value, electrical storage device 2 charge control module controls electrical storage device 2 and stops charging, if the voltage of electrical storage device 2 is less than preset upper limit voltage lower threshold value, electrical storage device charge control module 4 exports direct current to electrical storage device 2, when described DC power supplier 1 does not externally provide DC power supply, described power supply modular converter 3 controls described electrical storage device 2 and powers to subscriber terminal equipment, electrical storage device control of discharge module 5 detects the voltage of electrical storage device 2, if the voltage of described electrical storage device 2 is greater than described pre-determined lower limit voltage, the output that described electrical storage device control of discharge module 5 controls described electrical storage device 2 externally exports direct current, if the voltage of described electrical storage device 2 is less than or equal to pre-determined lower limit voltage, described electrical storage device control of discharge module 5 controls described electrical storage device 2 and stops powering to subscriber terminal equipment, subscriber terminal equipment is maintained normally work and protect the unlikely damage of its software and hardware.Circuit structure of the present invention is simple, and cost is low, is on the basis at public users existing equipment, utilizes Modern Power Electronic Devices, develops a kind of stability and the relatively high back-up power source charging-dischargingcontrol control circuit of reliability.It is complicated that above-mentioned back-up power source charging-dischargingcontrol control circuit effectively prevent back-up power source charging-dischargingcontrol control circuit in prior art, and unreasonable structure, causes the problem that the stability of circuit and reliability are not high.
The described energy-conservation driver module of back-up power source charging-dischargingcontrol control circuit of the present invention comprises polar capacitor and resistance, inverse electromotive force when utilizing polar capacitor to discharge is to strengthen the energy-conservation drive current of relay coil, accelerate the responsiveness of transfer contact, resistance is utilized to reduce the electric current flowing through relay upon actuation, reach and reduce relay power consumption, play energy-conservation effect, while reducing power consumption, improve the reliability of circuit.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range of the invention.
Claims (11)
1. a back-up power source charging-dischargingcontrol control circuit, is characterized in that, comprising:
DC power supplier, comprises an output, and described DC power supplier is used for externally providing direct current;
Electrical storage device, comprises an input and an output, and described electrical storage device is used for externally providing direct current;
Power supply modular converter, comprise the galvanic first input end for receiving the output of described DC power supplier, for receiving galvanic second input and an output of the output of described electrical storage device, the first input end of described power supply modular converter is connected with the output of described DC power supplier, for receiving the direct current that described DC power supplier provides, second input of described power supply modular converter is connected with the output of described electrical storage device, for receiving the direct current that described electrical storage device provides, the output of described power supply modular converter is connected with subscriber terminal equipment, described power supply modular converter is for controlling described DC power supplier and described electrical storage device carries out power supply conversion, when described DC power supplier externally provides direct current, the direct current of described DC power supplier is supplied to subscriber terminal equipment by described power supply modular converter, when described DC power supplier does not externally provide direct current, the direct current of described electrical storage device is supplied to subscriber terminal equipment by described power supply modular converter, wherein, described power supply modular converter comprises diode D7, light-emitting diode D8, resistance R11, relay J 3, J4, J5, relay J 4 transfer contact 2, relay J 5 transfer contact 2, the positive pole of diode D7, the negative pole of light-emitting diode D8, relay J 3, J4, J5 coil one end, the normally opened contact of described relay J 4 transfer contact 2 connects the rear common first input end negative pole as described power supply modular converter and connects described DC power supplier negative pole of output end, the positive pole of described light-emitting diode D8 is connected with one end of resistance R11, the resistance R11 other end, the negative pole of diode D7, relay J 3, J4, the other end of J5 coil, the normally opened contact of described relay J 5 transfer contact 2 connects described DC power supplier output head anode as the first input end positive pole of described power supply modular converter, the normally-closed contact of described relay J 5 transfer contact 2 connects the output head anode of described electrical storage device as the second input anode of described power supply modular converter, the normally-closed contact of described relay J 4 transfer contact 2 is connected with the negative pole of output end of described electrical storage device as the second input cathode of described power supply modular converter, subscriber terminal equipment described in the common output termination as described power supply modular converter after the common of relay J 5 transfer contact 2 is connected with the common of relay J 4 transfer contact 2,
Electrical storage device charge control module, comprise an input and an output, the input of described electrical storage device charge control module is connected with the output of described DC power supplier, for receiving the direct current that described DC power supplier provides; The output of described electrical storage device charge control module is connected with the input of described electrical storage device, whether is in charged state for controlling described electrical storage device; When DC power supplier externally provides direct current, the voltage of described electrical storage device charge control module to described electrical storage device detects, if the voltage of described electrical storage device is less than preset upper limit voltage, the output of described electrical storage device charge control module exports direct current to the input of described electrical storage device, if the voltage of described electrical storage device is greater than or equal to described preset upper limit voltage, the output of described electrical storage device charge control module stops exporting direct current to the input of described electrical storage device;
Electrical storage device control of discharge module, comprises an input, and the input of described electrical storage device control of discharge module is connected with the output of described electrical storage device; When described electrical storage device externally provides direct current, the voltage of described electrical storage device control of discharge module to described electrical storage device detects, if the voltage of described electrical storage device is less than or equal to pre-determined lower limit voltage, described in described electrical storage device control of discharge module controls, the output of electrical storage device does not externally export direct current, if the voltage of described electrical storage device is greater than described pre-determined lower limit voltage, described in described electrical storage device control of discharge module controls, the output of electrical storage device externally exports direct current.
2. back-up power source charging-dischargingcontrol control circuit according to claim 1, is characterized in that: described electrical storage device control of discharge module comprises under-voltage detection control unit and under-voltage protection unit, wherein,
Described under-voltage detection control unit, comprises an input and an output, the input of described under-voltage detection control unit as described electrical storage device control of discharge module input termination described in the output of electrical storage device; Described under-voltage detection control unit is for detecting the voltage of described electrical storage device, when the voltage of described electrical storage device is less than or equal to described pre-determined lower limit voltage, described under-voltage detection control unit is to described under-voltage protection unit output action signal, when the voltage of described electrical storage device is greater than described pre-determined lower limit voltage, described under-voltage detection control unit exports to described under-voltage protection unit signal of being failure to actuate;
Described under-voltage protection unit, comprises an input, the output of under-voltage detection control unit described in the input termination of described under-voltage protection unit, for receiving the output signal of described under-voltage detection control unit; When described under-voltage protection unit receives the actuating signal of described under-voltage detection control unit output; the action of described under-voltage protection unit thus control described electrical storage device stop externally providing direct current; when described under-voltage protection unit receive that described under-voltage detection control unit exports be failure to actuate signal time; described under-voltage protection unit is failure to actuate, and described electrical storage device continues externally to provide direct current.
3. back-up power source charging-dischargingcontrol control circuit according to claim 1, is characterized in that: described electrical storage device charge control module comprises direct-flow voltage regulation unit and voltage detecting control unit, wherein,
Described direct-flow voltage regulation unit, comprise an input and an output, the input of described direct-flow voltage regulation unit is connected with the output of described DC power supplier, the galvanic voltage constant of described direct-flow voltage regulation unit for keeping DC power supplier to export, and provide direct current to voltage detecting control unit;
Described voltage detecting control unit, comprise the galvanic first input end for receiving the output of described DC power supplier, for receiving galvanic second input and an output of the output of described direct-flow voltage regulation unit, the first input end of described voltage detecting control unit is connected with the output of described DC power supplier, for receiving the direct current that described DC power supplier exports; Second input of described voltage detecting control unit is connected with the output of described direct-flow voltage regulation unit, for receiving the direct current of described direct-flow voltage regulation unit output as working power, electrical storage device described in the output termination of described voltage detecting control unit; Described voltage detecting control unit is for detecting the voltage of electrical storage device and controlling the charging of described electrical storage device, when upper threshold value lower than preset upper limit voltage of the voltage of described electrical storage device, described voltage detecting control unit sends charging signals, the backward described electrical storage device charging of the direct current transformation that described DC power supplier is exported, when described electrical storage device voltage higher than or when equaling the lower threshold value of preset upper limit voltage, described voltage detecting control unit sends and stops filling signal, controls described DC power supplier and stops charging to described electrical storage device.
4. back-up power source charging-dischargingcontrol control circuit according to claim 2, is characterized in that:
Described under-voltage detection control unit comprises resistance R20, R18, R21, R19, electric capacity C11, C12, polar capacitor C13, C14, diode D11, D12, D14, triode Q2, relay J 1, controllable silicon DR1; Described under-voltage protection unit comprise magnetic latching relay J2, relay J 1 transfer contact 1,2, relay J 3 transfer contact 1,2;
The normally opened contact of one end of one end of described resistance R18, one end of described electric capacity C11, the positive pole of described diode D14, described resistance R20, one end of described relay J 1 coil, described relay J 1 transfer contact 1 connects the rear common input as electrical storage device control of discharge module and is connected with the output of described electrical storage device; Jointly be connected with the base stage of described triode Q2 after one end connection of the negative pole of described diode D14, one end of described resistance R19, described electric capacity C12, the emitter of the other end of described resistance R18, the other end of described electric capacity C11, the other end of described resistance R19, the other end of described electric capacity C12, described triode Q2 connects rear common ground; Jointly be connected with the other end of described resistance R20 after the control pole connection of the collector electrode of described triode Q2, one end of described resistance R21, the positive pole of described polar capacitor C13, described controllable silicon DR1, common ground after the other end of described resistance R21 is connected with the negative pole of the negative pole of described polar capacitor C13, described controllable silicon DR1; The other end of described relay J 1 coil is connected with the positive pole of described diode D11, the positive pole of described diode D12 simultaneously, the negative pole of described diode D11 is connected with the positive pole of described controllable silicon DR1, the negative pole of described diode D12 is connected with the positive pole of described polar capacitor C14, and the negative pole of described polar capacitor C14 is connected rear common ground with the normally opened contact of described relay J 1 transfer contact 2; The common of described relay J 1 transfer contact 2 connects the normally-closed contact of described relay J 3 transfer contact 2, the common of described relay J 3 transfer contact 2 connects one end of described magnetic latching relay J2, the common of relay J 3 transfer contact 1 described in another termination of described magnetic latching relay J2, the normally opened contact ground connection of described relay J 3 transfer contact 1, the normally-closed contact of described relay J 3 transfer contact 1 connects the common of described relay J 1 transfer contact 1.
5. back-up power source charging-dischargingcontrol control circuit according to claim 1, is characterized in that: described electrical storage device comprises storage power, fuse F2, magnetic latching relay J2 transfer contact 1, relay J 4 transfer contact 1; The output head anode of described storage power is connected with one end of described fuse F2, the other end of described fuse F2 is connected with the common of the transfer contact 1 of magnetic latching relay J2, after the normally-closed contact of the transfer contact 1 of described magnetic latching relay J2, the common of described relay J 4 transfer contact 1 connect, the common output as described electrical storage device externally exports direct current, and the normally-closed contact of described relay J 4 transfer contact 1 is connected with the normally-closed contact of described relay J 5 transfer contact 2; The negative pole of output end of the normally opened contact of the transfer contact 1 of described magnetic latching relay J2, described storage power connects rear common ground; The normally opened contact of described relay J 4 transfer contact 1 is connected with the output of described electrical storage device charge control module as the input of described electrical storage device.
6. back-up power source charging-dischargingcontrol control circuit according to claim 2, it is characterized in that: described electrical storage device control of discharge module also comprises the debugging unit for debugging by described under-voltage detection control unit electric current, and described debugging unit comprises resistance R16, R17; One end of described resistance R16 is connected with the normally opened contact of described relay J 1 transfer contact 1 as the input of described debugging unit, the other end of described resistance R16 is connected with one end of described resistance R17, and the described resistance R17 other end is connected with the positive pole of described diode D14 as the output of described debugging unit.
7. back-up power source charging-dischargingcontrol control circuit according to claim 1, is characterized in that:
Described back-up power source charging-dischargingcontrol control circuit also comprises driver module, described driver module comprises for driving the first driver element of described power supply modular converter and for driving the second driver element of described electrical storage device control of discharge module, described first driver element comprises resistance R10 and polar capacitor C10, and described second driver element comprises polar capacitor C8 and resistance R15;
The positive pole of one end of described resistance R10, described polar capacitor C10 connects the output head anode that the rear common input anode as described first driver element connects described DC power supplier, for receiving the DC power supply that described DC power supplier provides; The negative pole of the other end of described resistance R10, described polar capacitor C10 connects one end that the rear common negative pole of output end as described first driver element meets described relay J 3, J4, J5, the negative pole of output end of DC power supplier described in another termination of described relay J 3, J4, J5; The normally opened contact of relay J 3 transfer contact 2 described in the common output termination as described second driver element after the negative pole of one end of resistance R15, polar capacitor C8 connects, the output of electrical storage device charge control module described in the common input termination as described second driver element after the positive pole of the other end of resistance R15, described polar capacitor C8 connects.
8. back-up power source charging-dischargingcontrol control circuit according to claim 1, is characterized in that:
Described back-up power source charging-dischargingcontrol control circuit also comprises and is used to indicate the discharge and recharge indicating member whether described electrical storage device is in charging and discharging state, described discharge and recharge indicating member comprises the transfer contact 1 of relay J 5, Light-Emitting Diode D8, D9, electric capacity C9, resistance R13, R12; The common of the transfer contact 1 of described relay J 5 is connected with the output of described electrical storage device as the input of described discharge and recharge indicating member, the normally opened contact of the transfer contact 1 of described relay J 5 is connected with one end of described resistance R12, and the other end of described resistance R12 is connected with the positive pole of described Light-Emitting Diode D8; One end of described electric capacity C9 is connected the rear common output as described discharge and recharge indicating member and is connected with the input of electrical storage device control of discharge module with the normally-closed contact of one end of described resistance R13, the transfer contact 1 of described relay J 5, the other end ground connection of described electric capacity C9, the other end of described resistance R13 is connected with the positive pole of described Light-Emitting Diode D9, and the negative pole of described Light-Emitting Diode D8, D9 connects rear common ground.
9. back-up power source charging-dischargingcontrol control circuit according to claim 4, is characterized in that:
Described electrical storage device control of discharge module also comprises and is used to indicate the under-voltage indicating member whether described electrical storage device is in under-voltage condition, described under-voltage indicating member comprises resistance R14, light-emitting diode D10, described resistance R14 one end is connected with the normally opened contact of described magnetic latching relay J2 transfer contact 1, the positive pole of light-emitting diode D10 described in another termination of described resistance R14, the minus earth of described light-emitting diode D10.
10. back-up power source charging-dischargingcontrol control circuit according to claim 3, it is characterized in that: export to described direct-flow voltage regulation unit after the described electrical storage device charge control module direct current also comprised for exporting DC power supplier carries out secondary rectification, and judge that described DC power supplier exports the rectification unit of galvanic both positive and negative polarity;
Described rectification unit comprises diode D1, D2, D3, D4, described diode D1, D2, D3, D4 forms full bridge rectifier, described rectification unit comprises first input end, second input, cathode output end and cathode output end, the positive pole of described diode D1 and the link of described diode D2 negative pole connect the negative pole of output end of described DC power supplier as the first input end of described rectification unit, the positive pole of described diode D3 and the link of described diode D4 negative pole input the output head anode of DC power supplier described in termination as second of described rectification unit, the negative pole of described diode D1 and the link of described diode D3 negative pole connect the input of described direct-flow voltage regulation unit as the cathode output end of described rectification unit simultaneously, the first input end of described voltage detecting control unit, the positive pole of described diode D2 and the link of described diode D4 positive pole are as the cathode output end ground connection of described rectification unit.
11. back-up power source charging-dischargingcontrol control circuit according to claim 3 or 10, is characterized in that:
Described direct-flow voltage regulation unit comprises voltage stabilizing chip 7809, polar capacitor C1, C2, electric capacity C3, C4; One end of the Vin pin of described voltage stabilizing chip 7809, the positive pole of described polar capacitor C1 and described electric capacity C4 links together jointly, is connected as the first input end of the input of described direct-flow voltage regulation unit with the output of described DC power supplier and described voltage detecting control unit; One end common ground of the other end of described electric capacity C4, the negative pole of described polar capacitor C1, the GND pin of described voltage stabilizing chip 7809, the negative pole of described polar capacitor C2 and described electric capacity C3, the Vout pin of the other end of described electric capacity C3, the positive pole of described polar capacitor C2 and described voltage stabilizing chip 7809 links together jointly, and the Vout pin of described voltage stabilizing chip 7809 is that the output of described direct-flow voltage regulation unit is connected with the second input of described voltage detecting control unit;
Described voltage detecting control unit comprises NE556 chip, transformer T2, field effect transistor VD, resistance R1, R2, R3, R4, R5, R6, R8, R9, electric capacity C5, C6, C7, diode D5;
The second input that 13 pins of described NE556 chip link together as described voltage detecting control unit through 14 pins of resistance R1 and NE556 chip, 4 pins is connected with the output of described direct-flow voltage regulation unit, 12 pins of described NE556 chip are connected with 13 pins of described NE556 chip through described resistance R2, 11 pins of described NE556 chip are through described electric capacity C7 ground connection, 10 pins of described NE556 chip are connected with 5 pins, after 8 pins of described NE556 chip are connected with 12 pins of described NE556 chip common after described electric capacity C5 ground connection, 3 pins of described NE556 chip are through described electric capacity C6 ground connection, 9 pins of described NE556 chip jointly connect the grid G of described field effect transistor after described resistance R3 is connected with one end of described resistance R6, the other end ground connection of described resistance R6, the drain D of described field effect transistor is connected with second input of described transformer T2, and the first input end of described transformer T2 is connected with the output of described DC power supplier as the first input end of described voltage detecting control unit, the positive pole of described diode D5 is connected with first output of described transformer T2, and one end of the negative pole of described diode D5, one end of described resistance R8, described resistance R9 links together and is jointly connected with the input anode of described electrical storage device as the output head anode of described voltage detecting control unit, one end of the common connecting resistance R4 of 6 pin of the described resistance R8 other end and described NE556 chip, 2 pins of the described resistance R9 other end and described NE556 chip connect one end of described resistance R5 jointly, the source S of the other end of described resistance R4, the other end of resistance R5, described field effect transistor, 7 pins of described NE556 chip, second output of transformer T2 link together, and the negative pole of output end jointly as described voltage detecting control unit is connected with the input cathode of described electrical storage device.
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| CN106230065A (en) * | 2016-08-30 | 2016-12-14 | 许尚密 | A kind of for storing one charging device |
| CN107834691B (en) * | 2017-10-24 | 2023-10-24 | 常熟市通用电器厂有限公司 | Emergent converting circuit of microcomputer system power |
| CN108808778B (en) * | 2018-06-20 | 2024-03-26 | 国网江苏省电力有限公司泰州供电分公司 | Intelligent storage battery charging and discharging structure |
| CN110556970A (en) * | 2019-08-20 | 2019-12-10 | 朔黄铁路发展有限责任公司 | charging and discharging control circuit, power generation and supply control system and electric locomotive |
| CN112515758A (en) * | 2019-09-18 | 2021-03-19 | 广州星际悦动股份有限公司 | Depilating instrument and control method thereof |
| CN112744101B (en) * | 2020-12-25 | 2023-02-17 | 中国第一汽车股份有限公司 | Charging and discharging control system and method and vehicle |
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