CN110299741A - A kind of over-discharge recovery system of battery group - Google Patents
A kind of over-discharge recovery system of battery group Download PDFInfo
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- CN110299741A CN110299741A CN201910576289.4A CN201910576289A CN110299741A CN 110299741 A CN110299741 A CN 110299741A CN 201910576289 A CN201910576289 A CN 201910576289A CN 110299741 A CN110299741 A CN 110299741A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- General Chemical & Material Sciences (AREA)
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Abstract
A kind of over-discharge recovery system of battery group, comprising: battery group, battery voltage sampling circuit, over-discharge restore control circuit, selecting circuit, pulsed triggering circuit.After the over-discharge of battery group occurs, discharge switch is in an off state, and over-discharge restores enabled switch in an ON state, and solar battery array is battery charging by charging circuit and charging diode, while solar battery array provides bearing power.Restore threshold values when accumulator battery voltage rises to over-discharge, the median of three tunnel level signals is chosen as final trigger signal, trigger signal is sent respectively to pulsed triggering circuit, generates pulse signal, discharge switch is independently connected using driving circuit, system enters normal mode of operation.It finally disconnects over-discharge and restores enabled switch, prevent hardware from malfunctioning, improve reliability, safety that the over-discharge of battery group restores.The present invention independently realizes that over-discharge restores function, and high reliablity, structure is simple, is easy to Project Realization.
Description
Technical field
The present invention relates to a kind of over-discharge recovery systems of battery group, belong to space flight field of deep space exploration.
Background technique
Lithium ion battery refers to that inlaid scheme is the secondary cell of positive and negative electrode, ratio high, small in size by feat of its voltage
The features such as energy is big, the charge and discharge service life is long, discharge performance is stablized, becomes space accumulation power supply of new generation.
Different with hydrogen nickel, ickel-cadmium cell, safety when charging, electric discharge must be taken into consideration in lithium ion battery.Lithium-ion electric
During to load discharge, voltage can be gradually decreased in pond, when over-discharge occurs for battery, will lead to lithium-ions battery electrical property
It can decline, performance degradation, the working performance of extreme influence battery follow-up work and service life.
In order to effectively extend the service life of lithium-ions battery, lithium ion electric power storage is typically designed in space power system
Pond group over control technology avoids lithium-ions battery group that overdischarge occurs.I.e. battery is when electricity will exhaust
Automatically it is disconnected with external loading, there is no electricity outputs, thus can effectively avoid battery overdischarge, play protection
Effect.After increasing with solar battery array output power, to battery charging, ground sends instruction connection electric power storage tank discharge and opens
It closes.
For deep space exploration, Mars and the earth are apart from remote, and fiery direct communication window is limited daily, and one-way communication
Time delay is up to 22min, and ground will be unable to accomplish that real-time telemetry is remotely controlled, it is therefore desirable to reinforce power-supply system autonomous management ability,
Autonomous control is restored to battery group over-discharge.
Summary of the invention
Technology of the invention solves the problems, such as: overcome the deficiencies in the prior art, and the over-discharge for proposing a kind of battery group is extensive
Complex system increases solar battery array and gives battery charging access, with accumulator battery voltage after the over-discharge of battery group occurs
Rise, until when over-discharge restores threshold values, discharge switch is independently connected in the starting of over-discharge restoring circuit.The present invention builds hardware circuit certainly
Main realization over-discharge restores function, and high reliablity, structure is simple, is easy to Project Realization.
The technical scheme is that
A kind of over-discharge recovery system of battery group, comprising: battery group, battery voltage sampling circuit, over-discharge restore control
Circuit processed, selecting circuit, pulsed triggering circuit, driving circuit, over-discharge restore enabled switch S2；
Battery voltage sampling circuit: it is sent out for acquiring the total voltage of battery group, and by the total voltage collected
It gives 3N over-discharge and restores control circuit；
3N over-discharge restores the size that control circuit is respectively compared the total voltage and over-discharge restores threshold values, if total electricity
When pressure is less than over-discharge recovery threshold values, comparator exports low level to selecting circuit；If the total voltage is greater than the over-discharge
When restoring threshold values, comparator exports high level to selecting circuit；The N is positive integer；
Selecting circuit receives the level signal that 3N over-discharge restores control circuit transmission, when the high level quantity received is more
When low level quantity, the median of the high level received described in selection distinguishes the trigger signal as trigger signal
It is sent to multiple pulsed triggering circuits；
Pulsed triggering circuit: the trigger signal that selecting circuit is sent is received, the trigger signal is converted into pulse
Signal is sent to driving circuit；
Driving circuit: receiving the pulse signal that the pulsed triggering circuit is sent, and generates low electricity according to the pulse signal
Ordinary mail number is for driving discharge switch movement closure；
The two-way output of the pulsed triggering circuit passes through diode and the multiple driving circuits of resistance series connection, the driving
The other end connection over-discharge of one end grounding of circuit, the driving circuit restores enabled switch S2.
Compared with the prior art, the invention has the advantages that:
1) present invention selects the median of three tunnel level signals as final trigger signal, and greatly improve system can
By property, meanwhile, pulsed triggering circuit is turned trigger signal using the double Retargetable compiler monostable flipflops of high reliability parallel way
It is changed to the high level signal of driving circuit；
2) present invention include battery voltage sampling circuit, over-discharge restore control circuit, selecting circuit, pulsed triggering circuit,
Driving circuit, over-discharge restore enabled switch and constitute battery group over-discharge restoring circuit, when to rise to over-discharge extensive for accumulator battery voltage
When multiple threshold values, discharge switch is independently connected in the starting of over-discharge restoring circuit；
3) present invention restores enabled switch using over-discharge, after the over-discharge of battery group occurs, connects the switch；Complete over-discharge
After restoring function, the switch is disconnected, hardware is effectively prevent to malfunction, improves reliability, safety that the over-discharge of battery group restores.
Detailed description of the invention
Fig. 1 is a kind of over-discharge recovery system of battery group of the present invention；
Fig. 2 is that over-discharge of the present invention restores control circuit；
Fig. 3 is pulsed triggering circuit of the present invention.
Specific embodiment
Further detailed description is done to the present invention with reference to the accompanying drawings and detailed description.
As shown in Figure 1, the present invention provides a kind of over-discharge recovery system of battery group, comprising: battery group, discharge switch
S1, charging diode N6, battery voltage sampling circuit, over-discharge restore control circuit, selecting circuit, pulsed triggering circuit, two poles
Pipe N1, diode N2, diode N3, diode N4, resistance R41, resistance R42, resistance R43, resistance R44, driving circuit, over-discharge
Restore enabled switch S2；
Battery voltage sampling circuit: it is sent out for acquiring the total voltage of battery group, and by the total voltage collected
It gives 3N over-discharge and restores control circuit；
3N over-discharge restores the size that control circuit is respectively compared the total voltage and over-discharge restores threshold values, if total electricity
When pressure is less than over-discharge recovery threshold values, comparator exports low level to selecting circuit；If the total voltage is greater than the over-discharge
When restoring threshold values, comparator exports high level to selecting circuit；The N is positive integer, N=1 in the embodiment of the present invention.
Selecting circuit receives the level signal that 3N over-discharge restores control circuit transmission, when the high level quantity received is more
When low level quantity, the median of the high level received described in selection distinguishes the trigger signal as trigger signal
It is sent to multiple pulsed triggering circuits；
Pulsed triggering circuit: the trigger signal that selecting circuit is sent is received, the trigger signal is converted into pulse
Signal is sent to driving circuit；
Driving circuit: receiving the pulse signal that the pulsed triggering circuit is sent, and generates low electricity according to the pulse signal
Ordinary mail number is for driving discharge switch movement closure；
The two-way output of the pulsed triggering circuit passes through diode and the multiple driving circuits of resistance series connection, the driving
The other end connection over-discharge of one end grounding of circuit, the driving circuit restores enabled switch S2.
Specific connection relationship is as follows:
Solar battery array charging circuit connects the anode of battery group, charging two by diode N5 with charging diode N6
The both ends of pole pipe N6 are parallel with discharge switch S1；Battery voltage sampling circuit connects the both ends of battery group, and 3N over-discharge restores
One end of control circuit connects battery voltage sampling circuit, and over-discharge restores the other end connection selecting circuit input of control circuit
End, selecting circuit output end connect 2 pulse triggers, and one of pulse trigger passes through concatenated diode N1 and resistance
R41 and concatenated diode N2 connects a driving circuit input terminal with resistance R43, and by concatenated diode N1 and
Resistance R42 and concatenated diode N2 connect another driving circuit input terminal with resistance R44；Another one pulse touching
That a driving circuit is connected with resistance R43 is defeated by concatenated diode N3 and resistance R41 and concatenated diode N4 for hair device
Enter end, and another driving is connected with resistance R44 by concatenated diode N3 and resistance R42 and concatenated diode N4
The input terminal of circuit；Two equal groundings of driving circuit, and one end that over-discharge restores enabled switch S2 is connected simultaneously, over-discharge is extensive
One end of the other end connection discharge switch S1 of multiple enabled switch S2.
Charging diode N6 provides battery charging access after the over-discharge of battery group occurs, and solar battery array is defeated
Power is battery charging out.Discharge switch S1 is in an off state, after the over-discharge of battery group occurs in battery group mistake
After putting recovery, it is in autonomous on-state, normal mode battery group charging/discharging function walks the branch.The over-discharge restores
Accumulator battery voltage sampled signal is restored threshold values with over-discharge and is compared by control circuit, when accumulator battery voltage is lower, compares
Device exports low level, and with battery charging, voltage is gradually increasing, and when rising to over-discharge recovery threshold values, comparator output is high
Level generates trigger signal.
Selecting circuit three are passed by put restore control circuit output trigger signal choose, select three tunnel level signals
Median as final trigger signal, greatly improve the reliability of system.Pulsed triggering circuit uses high reliability simultaneously
Trigger signal, is converted to the high level signal of driving circuit by the double Retargetable compiler monostable flipflops of connection mode.Driving circuit will
The high level signal driving discharge switch movement of pulsed triggering circuit, it is autonomous to connect.
As shown in Fig. 2, over-discharge restores control circuit, comprising: resistance R11, resistance R12, resistance R13, resistance R14, resistance
R21, resistance R22, resistance R23, resistance R24, resistance R31, resistance R32, resistance R33, resistance R34, comparator ADC11, compare
Device ADC12, comparator ADC21, comparator ADC22, comparator ADC31, comparator ADC32, capacitor C11, capacitor C21, capacitor
C31。
One end of resistance R14 connects battery voltage sampling circuit, and the other end connection comparator ADC11's of resistance R14 is anti-
Threshold value is restored for receiving externally input over-discharge in phase input terminal, the one end resistance R11, and the other end of resistance R11 connects comparator
The non-inverting input terminal of ADC11 and one end of resistance R12, the output end and resistance of the other end connection comparator ADC11 of resistance R12
One end of R13, one end of the other end connection capacitor C11 of resistance R13 and the inverting input terminal of comparator ADC12, capacitor C11's
Other end grounding, the non-inverting input terminal of comparator ADC12 are used to receive externally input first reference voltage Verf1, than
Output end compared with device ADC12, which connects selecting circuit and exports over-discharge, restores signal to the selecting circuit；
One end of resistance R24 connects battery voltage sampling circuit, and the other end connection comparator ADC21's of resistance R24 is anti-
Threshold value is restored for receiving externally input over-discharge in phase input terminal, the one end resistance R21, and the other end of resistance R21 connects comparator
The non-inverting input terminal of ADC21 and one end of resistance R22, the output end and resistance of the other end connection comparator ADC21 of resistance R22
One end of R23, one end of the other end connection capacitor C21 of resistance R23 and the inverting input terminal of comparator ADC22, capacitor C21's
Other end grounding, the non-inverting input terminal of comparator ADC22 are used to receive externally input second reference voltage Verf2, than
Output end compared with device ADC22, which connects selecting circuit and exports over-discharge, restores signal to the selecting circuit；
One end of resistance R34 connects battery voltage sampling circuit, and the other end connection comparator ADC31's of resistance R34 is anti-
Threshold value is restored for receiving externally input over-discharge in phase input terminal, the one end resistance R31, and the other end of resistance R31 connects comparator
The non-inverting input terminal of ADC31 and one end of resistance R32, the output end and resistance of the other end connection comparator ADC31 of resistance R32
One end of R33, one end of the other end connection capacitor C31 of resistance R33 and the inverting input terminal of comparator ADC32, capacitor C31's
Other end grounding, the non-inverting input terminal of comparator ADC32 are used to receive externally input third reference voltage Verf3, than
Output end compared with device ADC32, which connects selecting circuit and exports over-discharge, restores signal to the selecting circuit；The first benchmark electricity
Press the second reference voltage of Verf1=Verf2=third reference voltage Verf3.
As shown in figure 3, pulsed triggering circuit include: resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6,
Resistance R7, resistance R8, resistance R9, resistance R10, capacitor C1, capacitor C2, capacitor C3, pulse trigger U1.
One end of resistance R1 connects external power supply Vcc, and the voltage of external power supply Vcc described in the embodiment of the present invention is+
One end of the power input VDD and resistance R2 of the other end connection pulse trigger U1 of 12V, resistance R1, resistance R2's is another
The other end connection pulse touching of first control the resistance terminal 1RC, capacitor C1 of one end and pulse trigger U1 of end connection capacitor C1
Send out the first control capacitance terminal 1C of device U1；The external selecting circuit of one end connection of resistance R3, the other end connection of resistance R3
The first non-inverting input terminal 1TR+ of pulse trigger U1；One end of resistance R4 connects external power supply Vcc, and the other end of resistance R4 connects
Meet the first inverting input terminal 1TR- of pulse trigger U1；One end of one end connection resistance R2 of resistance R6, resistance R6's is another
The other end connection pulse touching of second control the resistance terminal 2RC, capacitor C2 of one end and pulse trigger U1 of end connection capacitor C2
Send out the second control capacitance terminal 2C of device U1；One end of one end connection resistance R3 of resistance R7, the other end of resistance R7 connect pulse
The second non-inverting input terminal 2TR+ of trigger U1；One end of resistance R8 connects external power supply Vcc, and the other end of resistance R8 connects arteries and veins
Rush the second inverting input terminal 2TR- of trigger U1；The earth signal input terminal VSS of one end connection pulse trigger U1 of capacitor C3
And grounding, one end of the other end connection resistance R10 of capacitor C3 and the reset terminal RESET, resistance R10 of pulse trigger U1
The other end connect external power supply Vcc；The second reversed-phase output 2OUT- of one end connection pulse trigger U1 of resistance R9, electricity
Hinder the other end grounding of R9；The the first reversed-phase output 1OUT-, resistance R5 of one end connection pulse trigger U1 of resistance R5
Other end grounding；The first positive output end 1OUT+ connection outer secondary pipe of pulse trigger U1, pulse trigger U1
The second positive output end 2OUT+ connection outer secondary pipe.
The reset terminal RESET of control pulsed triggering circuit is slowly reached high level when capacitor C3 is used to power on initial, realizes
The soft start function of pulsed triggering circuit prevents battery group over-discharge from restoring function and powers on initial time malfunction.
In embodiment, after solar battery array, charging circuit, charging diode constitute the over-discharge of battery group, battery group
Charging path.Charging circuit connects solar battery array, load and charging diode N6.After the over-discharge of battery group occurs, electric discharge is opened
It closes S1 to be in an off state, solar battery array passes through charging circuit and charging diode N6 as battery charging, while the sun
Cell array provides bearing power.
In embodiment, battery voltage sampling circuit, over-discharge restore control circuit, selecting circuit, pulsed triggering circuit, driving
Circuit, over-discharge restore enabled switch S2 and constitute battery group over-discharge restoring circuit.Battery voltage sampling circuit connects battery group,
Accumulator battery voltage is subjected to sampling processing, sampled signal, which is sent to over-discharge, restores control circuit, and over-discharge restores control circuit totally three
Road, accumulator battery voltage restore threshold values with over-discharge respectively and are compared, and when accumulator battery voltage is lower, comparator exports low electricity
Flat, with battery charging, voltage is gradually increasing, and when rising to over-discharge recovery threshold values, comparator exports high level, chooses electricity
Road three are passed by put restore control circuit output level signal choose, select three tunnel level signals median generate touching
It signals, trigger signal is sent to pulsed triggering circuit, and trigger signal is converted to pulse signal and is sent to drive by pulsed triggering circuit
Dynamic circuit.Over-discharge at this time restores enabled switch in an ON state, and driving circuit, which generates low level according to the pulse signal, to be believed
Number driving discharge switch S1 movement, discharge switch S1 independently connects, and system enters normal mode of operation, normal mode battery group
Charging/discharging function walks discharge switch branch.It finally disconnects over-discharge and restores enabled switch, to prevent hardware from malfunctioning, improve and store
The reliability of battery pack over-discharge recovery, safety.
The content that description in the present invention is not described in detail belongs to the well-known technique of professional and technical personnel in the field.
Claims (3)
1. a kind of over-discharge recovery system of battery group characterized by comprising battery group, battery voltage sampling circuit, mistake
It puts and restores control circuit, selecting circuit, pulsed triggering circuit, driving circuit, the enabled switch S2 of over-discharge recovery；
Battery voltage sampling circuit: it is sent to for acquiring the total voltage of battery group, and by the total voltage collected
3N over-discharge restores control circuit；
3N over-discharge restores the size that control circuit is respectively compared the total voltage and over-discharge restores threshold values, if the total voltage is small
When the over-discharge restores threshold values, comparator exports low level to selecting circuit；If the total voltage is restored greater than the over-discharge
When threshold values, comparator exports high level to selecting circuit；The N is positive integer；
Selecting circuit: the level signal that 3N over-discharge restores control circuit transmission is received, when the high level quantity received is more than
When low level quantity, the median of the high level received described in selection sends out the trigger signal as trigger signal respectively
Give multiple pulsed triggering circuits；
Pulsed triggering circuit: the trigger signal that selecting circuit is sent is received, the trigger signal is converted into pulse signal
It is sent to driving circuit；
Driving circuit: receiving the pulse signal that the pulsed triggering circuit is sent, and generates low level letter according to the pulse signal
Number for drive discharge switch movement closure；
The two-way output of the pulsed triggering circuit passes through diode and the multiple driving circuits of resistance series connection, the driving circuit
Output end connection over-discharge restore enabled switch S2.
2. a kind of over-discharge recovery system of battery group according to claim 1, which is characterized in that the over-discharge restores control
Circuit processed includes: resistance R11, resistance R12, resistance R13, resistance R14, resistance R21, resistance R22, resistance R23, resistance R24, electricity
Hinder R31, resistance R32, resistance R33, resistance R34, comparator ADC11, comparator ADC12, comparator ADC21, comparator
ADC22, comparator ADC31, comparator ADC32, capacitor C11, capacitor C21, capacitor C31；
One end of resistance R14 connects battery voltage sampling circuit, and the reverse phase of the other end connection comparator ADC11 of resistance R14 is defeated
Enter end, threshold value is restored for receiving externally input over-discharge in the one end resistance R11, and the other end of resistance R11 connects comparator ADC11
Non-inverting input terminal and resistance R12 one end, the output end and resistance R13 of the other end connection comparator ADC11 of resistance R12
One end, one end of the other end connection capacitor C11 of resistance R13 and the inverting input terminal of comparator ADC12, capacitor C11's is another
Grounding is held, the non-inverting input terminal of comparator ADC12 is for receiving externally input first reference voltage Verf1, comparator
The output end connection selecting circuit of ADC12 simultaneously exports over-discharge recovery signal to the selecting circuit；
One end of resistance R24 connects battery voltage sampling circuit, and the reverse phase of the other end connection comparator ADC21 of resistance R24 is defeated
Enter end, threshold value is restored for receiving externally input over-discharge in the one end resistance R21, and the other end of resistance R21 connects comparator ADC21
Non-inverting input terminal and resistance R22 one end, the output end and resistance R23 of the other end connection comparator ADC21 of resistance R22
One end, one end of the other end connection capacitor C21 of resistance R23 and the inverting input terminal of comparator ADC22, capacitor C21's is another
Grounding is held, the non-inverting input terminal of comparator ADC22 is for receiving externally input second reference voltage Verf2, comparator
The output end connection selecting circuit of ADC22 simultaneously exports over-discharge recovery signal to the selecting circuit；
One end of resistance R34 connects battery voltage sampling circuit, and the reverse phase of the other end connection comparator ADC31 of resistance R34 is defeated
Enter end, threshold value is restored for receiving externally input over-discharge in the one end resistance R31, and the other end of resistance R31 connects comparator ADC31
Non-inverting input terminal and resistance R32 one end, the output end and resistance R33 of the other end connection comparator ADC31 of resistance R32
One end, one end of the other end connection capacitor C31 of resistance R33 and the inverting input terminal of comparator ADC32, capacitor C31's is another
Grounding is held, the non-inverting input terminal of comparator ADC32 is for receiving externally input third reference voltage Verf3, comparator
The output end connection selecting circuit of ADC32 simultaneously exports over-discharge recovery signal to the selecting circuit；First reference voltage
Verf1=the second reference voltage Verf2=third reference voltage Verf3.
3. a kind of over-discharge recovery system of battery group according to one of claims 1 or 2, which is characterized in that the arteries and veins
Rushing trigger circuit includes: resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance
R9, resistance R10, capacitor C1, capacitor C2, capacitor C3, pulse trigger U1；
One end of resistance R1 connects external power supply Vcc, the power input VDD of the other end connection pulse trigger U1 of resistance R1
With one end of resistance R2, one end of the other end connection capacitor C1 of resistance R2 and the first control resistance terminal of pulse trigger U1
The first control capacitance terminal 1C of the other end connection pulse trigger U1 of 1RC, capacitor C1；Described in one end connection outside of resistance R3
Selecting circuit, the first non-inverting input terminal 1TR+ of the other end connection pulse trigger U1 of resistance R3；One end of resistance R4 connects
The first inverting input terminal 1TR- of the other end connection pulse trigger U1 of external power supply Vcc, resistance R4；One end of resistance R6 connects
One end of connecting resistance R2, one end of the other end connection capacitor C2 of resistance R6 and the second control resistance terminal of pulse trigger U1
The second control capacitance terminal 2C of the other end connection pulse trigger U1 of 2RC, capacitor C2；One end connection resistance R3's of resistance R7
One end, the second non-inverting input terminal 2TR+ of the other end connection pulse trigger U1 of resistance R7；One end of resistance R8 connects external
Power Vcc, the second inverting input terminal 2TR- of the other end connection pulse trigger U1 of resistance R8；One end of capacitor C3 connects arteries and veins
Rush the earth signal input terminal VSS and grounding of trigger U1, one end of the other end connection resistance R10 of capacitor C3 and pulse touching
The reset terminal RESET of device U1 is sent out, the other end of resistance R10 connects external power supply Vcc；One end of resistance R9 connects pulse trigger
The second reversed-phase output 2OUT- of U1, the other end grounding of resistance R9；One end connection pulse trigger U1's of resistance R5
The other end grounding of first reversed-phase output 1OUT-, resistance R5；The first positive output end 1OUT+ of pulse trigger U1
Connect outer secondary pipe, the second positive output end 2OUT+ connection outer secondary pipe of pulse trigger U1.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112803574A (en) * | 2021-03-23 | 2021-05-14 | 中国人民解放军国防科技大学 | Multi-stage security protection method and system for small satellite power supply |
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