CN107846001B - The super temperature protective device of electronics three-stage overcurrent - Google Patents
The super temperature protective device of electronics three-stage overcurrent Download PDFInfo
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- CN107846001B CN107846001B CN201610835740.6A CN201610835740A CN107846001B CN 107846001 B CN107846001 B CN 107846001B CN 201610835740 A CN201610835740 A CN 201610835740A CN 107846001 B CN107846001 B CN 107846001B
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- H02J7/0091—
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
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Abstract
A kind of electronics three-stage overcurrent super temperature protective device of pair of different voltages grade battery second protection.By constantly detecting electric current of the battery in charge and discharge process; it is divided into three sections of three kinds of delay times according to size of current; the guard mode of battery is controlled by the comparison amplification to feedback signal; Simultaneous Monitoring battery temperature; protect battery in charge and discharge process from overcurrent, the damage of short circuit and overtemperature degree; battery is scrapped and explodes caused by avoiding because of battery from overcurrent, short circuit with overtemperature degree; not only realize battery enter protection after by again charging restore battery normal function, while ensure battery using safe.
Description
Technical field
The present invention relates to the safety devices of a kind of pair of different voltages grade battery second protection, especially battery charging and discharging mistake
From overcurrent, the damage of short circuit and overtemperature degree in journey, realization battery, which enters after protection, is restoring battery just by charging again
The super temperature protective device of electronics three-stage overcurrent of Chang Gongneng.
Background technique
Currently, well known be applied to mobile phone, tablet computer, there are four types of cells in notebook computer second protection schemes, PTC,
FUSE (three end fuses), BREAKER (breaker), protection IC and MOSFET.PTC has a wide range of application, and price is low, but it is protected
Actuation time is slow, influenced by ambient temperature big, unstable, only has overcurrent protection function；FUSE (three end fuses) belongs to one
Secondary property protects device, and protection IC and peripheral components cooperating are matched outside its need of work, and opposite occupied space is big, melts after protection
It is disconnected, restore the job very difficult of battery；BREAKER (breaker) is necessarily mounted on battery, it is mechanical contact, vibrated
After hit can occur, stability is poor, influenced by ambient temperature also big；Protection IC and MOSFET is molding second protection in recent years
It is outer with device to realize that defencive function needs for technology, and opposite occupied space is bigger, and relative price is also high.It is a currently not yet
Function is complete, small in size, and the second protection of different voltages grade is suitble to integrate IC device.
Summary of the invention
In order to overcome existing different voltages grade battery second protection actuation time slow, influenced by ambient temperature big, stable
Property it is poor, overcurrent protection function is few, to battery protection inconvenience maintenance, protection after restore battery job very difficult, it is vibrated after
Hit, component number can occur mostly and the opposite bigger deficiency of occupied space, the present invention provide a kind of electronics three-stage mistake
Super temperature protective device is flowed, which can not only be suitable for mobile phone, tablet computer, notes
The second protection of this computer battery, and it is integrated small in size, complete overcurrent, short circuit and super temperature protection function, protection
After can restore the normal defencive function of battery by charging again.
The technical solution adopted by the present invention to solve the technical problems is: in the protection circuit, electric current is flowed to from terminal IN1
Terminal IN2 claims forward current, and electric current flows to terminal IN1 from terminal IN2 and claims reverse current, by the 2 of comparison amplifier IC2-1,3 feet
Compare one section of detection positive primary overload current, 2,3 feet of comparison amplifier IC3-1 compare one section of detection reversed primary overload electricity
Stream, 5,6 feet of comparison amplifier IC2-2 compare two sections of advanced overload currents of forward direction of detection, 5,6 feet of comparison amplifier IC3-2
Comparing two sections of reversed advanced overload currents of detection, 9,10 feet of comparison amplifier IC2-3 compare three sections of detection positive short circuit currents,
9,10 feet of comparison amplifier IC3-3 compare three sections of reversed short circuit currents of detection；When detecting primary overload electricity forward or backwards
Stream, comparison amplifier IC2-1 or the overturning of comparison amplifier IC3-1 circuit, comparison amplifier IC2-1 or comparison amplifier IC3-1
1 foot export high potential, release binary counter IC1 through triode V9, V2 and V1 and reset, binary counter IC1 starts
Timing, then timing output loop is connected to V4 through triode V7, timing is arrived, by triode V25 and V24 or triode V19 and V18
The G electrode potential of MOSFET pipe Q2 or Q1 is drawn high in conducting, disconnects current supply circuit；When detecting advanced overload current forward or backwards,
Comparison amplifier IC2-2 or the overturning of comparison amplifier IC3-2 circuit, the 7 of comparison amplifier IC2-2 or comparison amplifier IC3-2
Foot exports high potential, releases binary counter IC1 through triode V10, V2 and V1 and resets, binary counter IC1 starts to count
When, then timing output loop is connected to V5 through triode V8, timing is arrived, and is led by triode V25 and V24 or triode V19 and V18
The logical G electrode potential for drawing high MOSFET pipe Q2 or Q1, disconnects current supply circuit；When detecting short circuit current forward or backwards, compares and put
The 8 feet output of big device IC2-3 or the overturning of comparison amplifier IC3-3 circuit, comparison amplifier IC2-3 or comparison amplifier IC3-3
High potential releases binary counter IC1 through triode V12, V2 and V1 and resets, and binary counter IC1 starts timing, then passes through
Triode V11 is connected to timing output loop with V6, and timing is arrived, and is connected and is drawn high with V18 with V24 or triode V19 by triode V25
The G electrode potential of MOSFET pipe Q2 or Q1 disconnect current supply circuit.Comparison amplifier IC2-4 phase judgment, forward current compare and put
14 feet of big device IC2-4 export high potential, and triode V13, V17, V21 are connected with V20, make the be voltage across poles of triode V18
It is zero, guarantees that MOSFET pipe Q1 is in the conductive state always, MOSFET pipe Q2 is controlled when forward current；Reverse current compares and puts
14 feet of big device IC2-4 export low potential, triode V13 cut-off, and triode V16, V23 are connected with V22, make triode V24's
Be voltage across poles is zero, guarantees that MOSFET pipe Q2 is in the conductive state always, MOSFET pipe Q1 is controlled when reverse current.Compare and puts
12, the 13 foot current potentials of big device IC3-4 compare detection, and when temperature increases, thermistor NTC resistance value is reduced, comparison amplifier IC3-4
It is flipped 14 feet output high potential, the G electrode potential for drawing high MOSFET pipe Q2 is connected with V24 by triode V25 when forward current,
MOSFET pipe Q2 cut-off, disconnects current supply circuit；When reverse current triode V19 be connected with V18 draw high MOSFET pipe Q1 G it is extremely electric
Position, MOSFET pipe Q1 cut-off, disconnects current supply circuit.The different protections of setting are adjusted to terminal COM through connection terminal T1, T2 or T3
Temperature.The protective current of setting is adjusted to terminal IL0 through connection terminal IL1, IL2, IL3, IL4 and IL5.Terminal FUS is used for
External control, when terminal FUS is in low potential, triode V15 conducting, triode V25 is connected with V24 when forward current draws high MOSFET
The G electrode potential of pipe Q2, MOSFET pipe Q2 cut-off；The pole G for drawing high MOSFET pipe Q1 is connected with V18 by triode V19 when reverse current
Current potential, MOSFET pipe Q1 cut-off, disconnects current supply circuit.
The invention has the advantages that protecting battery in charge and discharge process from overcurrent, the damage of short circuit and overtemperature degree
Evil, battery is scrapped and explodes caused by avoiding because of battery from overcurrent, short circuit with overtemperature degree, not only realizes logical after battery enters protection
Cross again charging restore battery normal function, while ensure battery using safe.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Attached drawing is circuit diagram of the invention
Attached drawing: IN1, IN2, FUS, T1~T3, COM, VSS, IL0~IL5. terminal, R1~R58. resistance, RP1~RP9.
Adjustable resistance, NTC1~NTC3. thermistor, C1, C2. capacitor, D1~D11. diode, ZD1~ZD3. zener diode, V1
~V25. triode, Q1, Q2.MOSFET pipe, IC1. binary counter, IC2-1~IC2-4, IC3-1~IC3-4. are relatively put
Big device.
Specific embodiment
The pole D of terminal IN1, MOSFET pipe Q1,1 foot of adjustable resistance RP2 fixing end are connected with the one end resistance R28 in the figure,
The pole S of MOSFET pipe Q1, diode D1 anode, zener diode ZD2 cathode, the pole e of triode V18, resistance R34 one end, three
The pole e, the one end resistance R37, the one end resistance R38, the one end resistance R39, diode D8 cathode, one end resistance R42, electricity of pole pipe V20
Hinder the one end R43, the one end resistance R44, the pole e of triode V22, the one end resistance R49, the pole e of triode V24, zener diode ZD3
Cathode is extremely connected with the S of MOSFET pipe Q2, and diode D1 cathode is connected with the one end resistance R1, and the resistance R1 other end compares amplification
4 feet of device IC2-4, the pole e of triode V14, the pole e of triode V16, the pole e of triode V17, comparison amplifier IC3-1 4
Foot, the one end resistance R26,1 foot of adjustable resistance RP3 fixing end, zener diode ZD1 cathode, the pole e of triode V1, triode V2
The pole e, 16 feet of binary counter IC1, the one end capacitor C2, the one end resistance R14, the one end resistance R18 and triode V15 e
Extremely it is connected, adjustable resistance RP2 is adjustable 2 foot of end, diode D2 cathode are connected with 12 feet of comparison amplifier IC2-4, compare amplification
13 feet of device IC2-4 are connected with adjustable 2 foot of end of adjustable resistance RP1,14 feet of comparison amplifier IC2-4, diode D2 anode with
The one end resistance R2 is connected, and the resistance R2 other end is extremely connected with the b of triode V13, the pole c, the one end resistance R3 and the electricity of triode V13
It hinders the one end R4 to be connected, the resistance R3 other end is extremely connected with the b of triode V17, the pole c and the one end the resistance R33 phase of triode V17
Even, the resistance R33 other end is extremely connected with the b of triode V21, and the pole c of triode V21 is connected with the one end resistance R36, resistance R36
The other end is extremely connected with the b of triode V20, the pole c, the resistance R34 other end, the one end resistance R35 and the triode of triode V20
The b of V18 is extremely connected, the pole c of triode V18, the pole G of MOSFET pipe Q1, zener diode ZD2 anode and the one end resistance R30 phase
Even, the resistance R4 other end is extremely connected with the b of triode V14, the pole c of triode V14, the pole b of triode V16 and the one end resistance R5
It is connected, the pole c of triode V16 is connected with the one end resistance R48, and the resistance R48 other end is extremely connected with the b of triode V23, triode
The pole c of V23 is connected with the one end resistance R47, and the resistance R47 other end is extremely connected with the b of triode V22, the pole c of triode V22, electricity
Resistance the R49 other end, the one end resistance R50 are extremely connected with the b of triode V24, the pole c of triode V24, the pole G of MOSFET pipe Q2, surely
Pressure diode ZD3 anode is connected with the one end resistance R51, the pole c of triode V1,12 feet of binary counter IC1 and resistance R6
One end be connected, the pole b of triode V1, the pole c of triode V2 are connected with the one end resistance R7,11 feet of binary counter IC1 and
The one end resistance R8 is connected, and the resistance R8 other end, the one end resistance R9, the one end capacitor C1 are extremely connected with the c of triode V3, triode V3
The pole b be connected with the one end resistance R10, the resistance R10 other end, the pole c of triode V4, the pole c of triode V5, triode V6 c
Pole is connected with diode D3 anode, and the resistance R9 other end is connected with 10 feet of binary counter IC1, binary counter IC1
9 feet be connected with the capacitor C1 other end, 3 feet of binary counter IC1 are extremely connected with the e of triode V4, the pole b of triode V4
It is connected with the one end resistance R11, the resistance R11 other end is extremely connected with the c of triode V7, the pole b and the one end resistance R21 of triode V7
It is connected, 6 feet of binary counter IC1 are extremely connected with the e of triode V5, and the pole b of triode V5 is connected with the one end resistance R12,
The resistance R12 other end is extremely connected with the c of triode V8, and the pole b of triode V8 is connected with the one end resistance R23, binary counter
7 feet of IC1 are extremely connected with the e of triode V6, and the pole b of triode V6 is connected with the one end resistance R13, the resistance R13 other end and three
The c of pole pipe V11 is extremely connected, and the pole b of triode V11 is connected with the one end resistance R25, the pole b of triode V2, the resistance R14 other end,
The one end resistance R15, the one end resistance R16 are connected with the one end resistance R17, and the resistance R15 other end is extremely connected with the c of triode V9, and three
The pole b of pole pipe V9 is connected with the one end resistance R20, and the resistance R16 other end is extremely connected with the c of triode V10, the pole b of triode V10
It is connected with the one end resistance R22, the resistance R17 other end is extremely connected with the c of triode V12, the pole b of triode V12 and resistance R24 mono-
End be connected, the resistance R18 other end, triode V15 the pole b be connected with the one end resistance R19, the resistance R19 other end and terminal FUS phase
Even, the resistance R20 other end, diode D4 cathode, the resistance R21 other end are connected with diode D9 cathode, the resistance R22 other end,
Diode D5 cathode, the resistance R23 other end are connected with diode D10 cathode, the resistance R24 other end, diode D6 cathode, resistance
The R25 other end is connected with diode D11 cathode, and diode D4 anode is connected with 1 foot of comparison amplifier IC3-1, compares amplification
2 feet of device IC3-1, the resistance R28 other end, 6 feet of comparison amplifier IC3-2, comparison amplifier IC3-3 9 feet and resistance R29
One end is connected, and 3 feet of comparison amplifier IC3-1 are connected with adjustable 2 foot of end of adjustable resistance RP4, and diode D5 anode is put compared with
7 feet of big device IC3-2 are connected, and 5 feet of comparison amplifier IC3-2 are connected with adjustable 2 foot of end of adjustable resistance RP5, and diode D6 is just
Pole is connected with 8 feet of comparison amplifier IC3-3, and 10 feet of comparison amplifier IC3-3 are connected with adjustable 2 foot of end of adjustable resistance RP6,
Diode D9 anode is connected with 1 foot of comparison amplifier IC2-1, and 2 feet of comparison amplifier IC2-1, compare at the one end resistance R52
6 feet of amplifier IC2-2,9 feet of comparison amplifier IC2-3 are connected with the one end resistance R58,3 feet of comparison amplifier IC2-1 with
Adjustable resistance RP9 is adjustable, and 2 foot of end is connected, and diode D10 anode is connected with 7 feet of comparison amplifier IC2-2, comparison amplifier
5 feet of IC2-2 are connected with adjustable 2 foot of end of adjustable resistance RP8, and diode D11 anode is connected with 8 feet of comparison amplifier IC2-3,
10 feet of comparison amplifier IC2-3 are connected with adjustable 2 foot of end of adjustable resistance RP7, and the resistance R52 other end, adjustable resistance RP1 are fixed
Hold the pole D of 1 foot, MOSFET pipe Q2 to be connected with terminal IN2, diode D3 cathode, the pole c of triode V15, diode D7 cathode,
The one end resistance R31 is connected with the one end resistance R32, and the resistance R31 other end is extremely connected with the b of triode V19, the pole c of triode V19
It is connected with the resistance R35 other end, the resistance R32 other end is extremely connected with the b of triode V25, the pole c of triode V25 and resistance R50
The other end is connected, and diode D7 anode is connected with 14 feet of comparison amplifier IC3-4,12 feet, the resistance of comparison amplifier IC3-4
The R26 other end is connected with the one end resistance R27,13 feet of IC3-4, adjustable resistance RP3 is adjustable 2 foot of end, adjustable resistance RP3 fixing end
3 feet, the one end thermistor NTC1, the one end thermistor NTC2 are connected with the one end thermistor NTC3, and thermistor NTC1 is another
End is connected with terminal T1, and the thermistor NTC2 other end is connected with terminal T2, and the thermistor NTC3 other end is connected with terminal T3,
The resistance R37 other end is connected with 1 foot of adjustable resistance RP4 fixing end, and 3 foot of adjustable resistance RP4 fixing end, adjustable resistance RP9 are fixed
3 feet are held to be connected with terminal IL0, the resistance R38 other end is connected with 1 foot of adjustable resistance RP5 fixing end, adjustable resistance RP5 fixing end 3
Foot is connected with the one end resistance R40, and the resistance R39 other end is connected with 1 foot of adjustable resistance RP6 fixing end, adjustable resistance RP6 fixing end
3 feet are connected with the one end resistance R41, and the resistance R42 other end is connected with 1 foot of adjustable resistance RP7 fixing end, and adjustable resistance RP7 is fixed
3 feet are held to be connected with the one end resistance R45, the resistance R43 other end is connected with 1 foot of adjustable resistance RP8 fixing end, and adjustable resistance RP8 is solid
3 foot of fixed end is connected with the one end resistance R46, and the resistance R44 other end is connected with 1 foot of adjustable resistance RP9 fixing end, zener diode
ZD1 anode, 3 foot of adjustable resistance RP1 fixing end, 3 foot of adjustable resistance RP2 fixing end, 11 feet of comparison amplifier IC2-4, three poles
The pole e of pipe V13, the resistance R5 other end, the resistance R30 other end, the pole e of triode V21, diode D8 are positive, triode V23
The pole e, the resistance R51 other end, the resistance R6 other end, the resistance R7 other end, the pole e of triode V3, binary counter IC1 8
Foot, the capacitor C2 other end, the pole e of triode V7, the pole e of triode V8, the pole e of triode V9, the pole e of triode V10, three poles
The pole e of pipe V11, the pole e of triode V12,11 feet of comparison amplifier IC3-4, the resistance R27 other end, the resistance R29 other end,
The pole e of triode V19, terminal COM, the resistance R40 other end, the resistance R41 other end, terminal VSS, the resistance R45 other end, resistance
The R46 other end, the pole e of triode V25, the one end resistance R53, the one end resistance R54, the one end resistance R55, the one end resistance R56, resistance
The one end R57 is connected with the resistance R58 other end, and the resistance R53 other end is connected with terminal IL1, the resistance R54 other end and terminal IL2
It is connected, the resistance R55 other end is connected with terminal IL3, and the resistance R56 other end is connected with terminal IL4, the resistance R57 other end and end
Sub- IL5 is connected.
Claims (1)
1. a kind of super temperature protective device of electronics three-stage overcurrent, in protective loop, comparison amplifier IC2-1 or IC3-1 warp
Triode V7, V4 are to triode V25, V24 or triode V19, V18 control MOSFET pipe Q2 or Q1 Push And Release, comparison amplifier
IC2-2 or IC3-2 through triode V8, V5 to triode V25, V24 or triode V19, V18 control MOSFET pipe Q2 or Q1 open with
It closes, comparison amplifier IC2-3 or IC3-3 is controlled through triode V11, V6 to triode V25, V24 or triode V19, V18
MOSFET pipe Q2 or Q1 Push And Release, comparison amplifier IC2-4 block triode V18 to be connected through triode V13, V17, V21, V20,
Triode V16, V23, V22 block triode V24 conducting, and comparison amplifier IC3-4 is managed through triode V25, V24 control MOSFET
Q2 controls MOSFET pipe Q1 through triode V19, V18, and connection relationship is 2 feet of comparison amplifier IC2-1, resistance R52 mono-
End, 6 feet of comparison amplifier IC2-2, comparison amplifier IC2-3 9 feet be connected with the one end resistance R58, the resistance R58 other end,
The pole e of triode V25, the one end resistance R46, the one end resistance R45, the one end resistance R51, the pole e of triode V23, diode D8 are just
Pole, the pole e of triode V21, the one end resistance R30, the one end resistance R5, the pole e of triode V13, adjustable resistance RP2 3 feet, adjustable
3 feet of resistance RP1, the one end resistance R41, the one end resistance R40, the pole e of triode V19, the one end resistance R29, triode V7 e
Pole, the pole e of triode V8, triode V11 the pole e be connected with terminal VSS, the resistance R52 other end, adjustable resistance RP1 1 foot,
Terminal IN2 is extremely connected with the D of MOSFET pipe Q2, and 1 foot of comparison amplifier IC2-1 is connected with diode D9 anode, diode D9
Cathode, the one end resistance R21 are connected with diode D4 cathode, and diode D4 anode is connected with 1 foot of comparison amplifier IC3-1, than
9 feet and electricity of 2 feet, the one end resistance R28,6 feet of comparison amplifier IC3-2, comparison amplifier IC3-3 compared with amplifier IC3-1
The R29 other end is hindered to be connected, the resistance R28 other end, 1 foot of adjustable resistance RP2, terminal IN1 are extremely connected with the D of MOSFET pipe Q1,
The resistance R21 other end is extremely connected with the b of triode V7, and the pole c of triode V7 is connected with the one end resistance R11, the resistance R11 other end
Extremely it is connected with the b of triode V4,7 feet of comparison amplifier IC2-2 are connected with diode D10 anode, diode D10 cathode, electricity
Resistance one end R23 is connected with diode D5 cathode, and diode D5 anode is connected with 7 feet of comparison amplifier IC3-2, and resistance R23 is another
One end is extremely connected with the b of triode V8, and the pole c of triode V8 is connected with the one end resistance R12, the resistance R12 other end and triode
The b of V5 is extremely connected, and 8 feet of comparison amplifier IC2-3 are connected with diode D11 anode, diode D11 cathode, the one end resistance R25
It is connected with diode D6 cathode, diode D6 anode is connected with 8 feet of comparison amplifier IC3-3, the resistance R25 other end and three poles
The b of pipe V11 is extremely connected, and the pole c of triode V11 is connected with the one end resistance R13, the pole the b phase of the resistance R13 other end and triode V6
Even, the pole c of triode V4, the pole c of triode V5, triode V6 the pole c be connected with diode D3 anode, diode D3 cathode,
Diode D7 cathode, the one end resistance R31 are connected with the one end resistance R32, and the resistance R31 other end is extremely connected with the b of triode V19,
The pole c of triode V19 is connected with the one end resistance R35, the resistance R35 other end, the pole b of triode V18, resistance R34 one end and three
The c of pole pipe V20 is extremely connected, and the pole c of triode V18, the pole G of MOSFET pipe Q1, zener diode ZD2 anode and resistance R30 are another
One end is connected, zener diode ZD2 cathode, the pole e of triode V18, the resistance R34 other end, the pole e of triode V20, resistance
The one end R37, the one end resistance R38, the one end resistance R39, diode D8 cathode, the one end resistance R42, the one end resistance R43, resistance R44
One end, the pole e of triode V22, the one end resistance R49, the pole e of triode V24, zener diode ZD3 cathode, MOSFET pipe Q1
The pole S is extremely connected with the S of MOSFET pipe Q2, and the resistance R32 other end is extremely connected with the b of triode V25, the pole c of triode V25 and electricity
The one end R50 is hindered to be connected, the resistance R50 other end, the pole b of triode V24, the resistance R49 other end are extremely connected with the c of triode V22,
The pole c of triode V24, the pole G of MOSFET pipe Q2, zener diode ZD3 anode are connected with the resistance R51 other end, compare amplification
3 feet of device IC2-1 are connected with 2 feet of adjustable resistance RP9, and 1 foot of adjustable resistance RP9 is connected with the resistance R44 other end, adjustable electric
3 feet of 3 feet, adjustable resistance RP4 that hinder RP9 are connected with terminal IL0,3 feet of comparison amplifier IC3-1 and the 2 of adjustable resistance RP4
Foot is connected, and 1 foot of adjustable resistance RP4 is connected with the resistance R37 other end, 5 feet and adjustable resistance RP8 of comparison amplifier IC2-2
2 feet be connected, 1 foot of adjustable resistance RP8 is connected with the resistance R43 other end, 3 feet of adjustable resistance RP8 and the resistance R46 other end
It is connected, 5 feet of comparison amplifier IC3-2 are connected with 2 feet of adjustable resistance RP5, and 1 foot and resistance R38 of adjustable resistance RP5 is another
End is connected, and 3 feet of adjustable resistance RP5 are connected with the resistance R40 other end, 10 feet and adjustable resistance RP7 of comparison amplifier IC2-3
2 feet be connected, 1 foot of adjustable resistance RP7 is connected with the resistance R42 other end, 3 feet of adjustable resistance RP7 and the resistance R45 other end
It is connected, 10 feet of comparison amplifier IC3-3 are connected with 2 feet of adjustable resistance RP6, and 1 foot and resistance R39 of adjustable resistance RP6 is another
One end is connected, and 3 feet of adjustable resistance RP6 are connected with the resistance R41 other end, and 12 feet, the diode D2 of comparison amplifier IC2-4 is negative
Pole is connected with 2 feet of adjustable resistance RP2, and 13 feet of comparison amplifier IC2-4 are connected with 2 feet of adjustable resistance RP1, compares amplification
14 feet, the diode D2 anode of device IC2-4 is connected with the one end resistance R2, and the resistance R2 other end is extremely connected with the b of triode V13,
The pole c, one end resistance R3 of triode V13 is connected with the one end resistance R4, and the resistance R3 other end is extremely connected with the b of triode V17, and three
The pole c of pole pipe V17 is connected with the one end resistance R33, and the resistance R33 other end is extremely connected with the b of triode V21, the c of triode V21
Pole is connected with the one end resistance R36, and the resistance R36 other end is extremely connected with the b of triode V20, the resistance R4 other end and triode V14
B be extremely connected, the pole c of triode V14, the resistance R5 other end are extremely connected with the b of triode V16, the pole c of triode V16 with it is electric
It hinders the one end R48 to be connected, the resistance R48 other end is extremely connected with the b of triode V23, the pole c and the one end the resistance R47 phase of triode V23
Even, the resistance R47 other end is extremely connected with the b of triode V22, and 14 feet of comparison amplifier IC3-4 are connected with diode D7 anode,
It is characterized in that: the pole D of terminal IN1, MOSFET pipe Q1,1 foot of adjustable resistance RP2 fixing end are connected with the one end resistance R28, MOSFET
The pole S of pipe Q1, diode D1 anode, zener diode ZD2 cathode, the pole e of triode V18, resistance R34 one end, triode V20
The pole e, the one end resistance R37, the one end resistance R38, the one end resistance R39, diode D8 cathode, the one end resistance R42, resistance R43 mono-
End, the one end resistance R44, the pole e of triode V22, the one end resistance R49, the pole e of triode V24, zener diode ZD3 cathode with
The S of MOSFET pipe Q2 is extremely connected, and diode D1 cathode is connected with the one end resistance R1, the resistance R1 other end, comparison amplifier IC2-4
4 feet, the pole e of triode V14, the pole e of triode V16, the pole e of triode V17, comparison amplifier IC3-1 4 feet, resistance
The one end R26,1 foot of adjustable resistance RP3 fixing end, zener diode ZD1 cathode, the pole e of triode V1, the pole e of triode V2, two
16 feet of system Counter IC1, the one end capacitor C2, the one end resistance R14, the one end resistance R18 are extremely connected with the e of triode V15, can
Adjustable 2 foot of end of resistance RP2, diode D2 cathode is adjusted to be connected with 12 feet of comparison amplifier IC2-4, comparison amplifier IC2-4's
13 feet are connected with adjustable 2 foot of end of adjustable resistance RP1,14 feet, diode D2 anode and the one end resistance R2 of comparison amplifier IC2-4
It is connected, the resistance R2 other end is extremely connected with the b of triode V13, the pole c, the one end resistance R3 and the one end the resistance R4 phase of triode V13
Even, the resistance R3 other end is extremely connected with the b of triode V17, and the pole c of triode V17 is connected with the one end resistance R33, and resistance R33 is another
One end is extremely connected with the b of triode V21, and the pole c of triode V21 is connected with the one end resistance R36, the resistance R36 other end and three poles
The b of pipe V20 is extremely connected, and the pole c, the resistance R34 other end, one end resistance R35 of triode V20 is extremely connected with the b of triode V18,
The pole c of triode V18, the pole G of MOSFET pipe Q1, zener diode ZD2 anode are connected with the one end resistance R30, and resistance R4 is another
End is extremely connected with the b of triode V14, and the pole c of triode V14, the pole b of triode V16 are connected with the one end resistance R5, triode
The pole c of V16 is connected with the one end resistance R48, and the resistance R48 other end is extremely connected with the b of triode V23, the pole c of triode V23 with
The one end resistance R47 is connected, and the resistance R47 other end is extremely connected with the b of triode V22, and the pole c of triode V22, resistance R49 are another
End, the one end resistance R50 are extremely connected with the b of triode V24, the pole c of triode V24, the pole G of MOSFET pipe Q2, zener diode
ZD3 anode is connected with the one end resistance R51, and the pole c of triode V1,12 feet of binary counter IC1 are connected with the one end resistance R6,
The pole b of triode V1, the pole c of triode V2 are connected with the one end resistance R7,11 feet of binary counter IC1 and the one end resistance R8
It is connected, the resistance R8 other end, the one end resistance R9, the one end capacitor C1 are extremely connected with the c of triode V3, the pole b of triode V3 and electricity
It hinders the one end R10 to be connected, the resistance R10 other end, the pole c of triode V4, the pole c of triode V5, the pole c of triode V6 and diode
D3 anode is connected, and the resistance R9 other end is connected with 10 feet of binary counter IC1,9 feet and capacitor of binary counter IC1
The C1 other end is connected, and 3 feet of binary counter IC1 are extremely connected with the e of triode V4, the pole b of triode V4 and resistance R11 mono-
End is connected, and the resistance R11 other end is extremely connected with the c of triode V7, and the pole b of triode V7 is connected with the one end resistance R21, binary system
6 feet of counter IC1 are extremely connected with the e of triode V5, and the pole b of triode V5 is connected with the one end resistance R12, and resistance R12 is another
End is extremely connected with the c of triode V8, and the pole b of triode V8 is connected with the one end resistance R23,7 feet of binary counter IC1 and three
The e of pole pipe V6 is extremely connected, and the pole b of triode V6 is connected with the one end resistance R13, the pole c of the resistance R13 other end and triode V11
Be connected, the pole b of triode V11 is connected with the one end resistance R25, the pole b of triode V2, the resistance R14 other end, the one end resistance R15,
The one end resistance R16 is connected with the one end resistance R17, and the resistance R15 other end is extremely connected with the c of triode V9, the pole b of triode V9 with
The one end resistance R20 is connected, and the resistance R16 other end is extremely connected with the c of triode V10, the pole b and the one end resistance R22 of triode V10
It is connected, the resistance R17 other end is extremely connected with the c of triode V12, and the pole b of triode V12 is connected with the one end resistance R24, resistance
The R18 other end, triode V15 the pole b be connected with the one end resistance R19, the resistance R19 other end is connected with terminal FUS, resistance R20
The other end, diode D4 cathode, the resistance R21 other end are connected with diode D9 cathode, and the resistance R22 other end, diode D5 are negative
Pole, the resistance R23 other end are connected with diode D10 cathode, the resistance R24 other end, diode D6 cathode, the resistance R25 other end
It is connected with diode D11 cathode, diode D4 anode is connected with 1 foot of comparison amplifier IC3-1, and the 2 of comparison amplifier IC3-1
Foot, the resistance R28 other end, 6 feet of comparison amplifier IC3-2, comparison amplifier IC3-3 9 feet be connected with the one end resistance R29,
3 feet of comparison amplifier IC3-1 are connected with adjustable 2 foot of end of adjustable resistance RP4, diode D5 anode and comparison amplifier IC3-2
7 feet be connected, 5 feet of comparison amplifier IC3-2 are connected with adjustable 2 foot of end of adjustable resistance RP5, and diode D6 anode is put compared with
8 feet of big device IC3-3 are connected, and 10 feet of comparison amplifier IC3-3 are connected with adjustable 2 foot of end of adjustable resistance RP6, and diode D9 is just
Pole is connected with 1 foot of comparison amplifier IC2-1,2 feet of comparison amplifier IC2-1, the one end resistance R52, comparison amplifier IC2-2
6 feet, comparison amplifier IC2-3 9 feet be connected with the one end resistance R58,3 feet of comparison amplifier IC2-1 and adjustable resistance RP9
Adjustable 2 foot of end be connected, diode D10 anode is connected with 7 feet of comparison amplifier IC2-2,5 feet of comparison amplifier IC2-2 and
Adjustable resistance RP8 is adjustable, and 2 foot of end is connected, and diode D11 anode is connected with 8 feet of comparison amplifier IC2-3, comparison amplifier
10 feet of IC2-3 are connected with adjustable 2 foot of end of adjustable resistance RP7, the resistance R52 other end, 1 foot of adjustable resistance RP1 fixing end,
The pole D of MOSFET pipe Q2 is connected with terminal IN2, diode D3 cathode, the pole c of triode V15, diode D7 cathode, resistance R31
One end is connected with the one end resistance R32, and the resistance R31 other end is extremely connected with the b of triode V19, the pole c of triode V19 and resistance
The R35 other end is connected, and the resistance R32 other end is extremely connected with the b of triode V25, the pole c of triode V25 and the resistance R50 other end
It is connected, diode D7 anode is connected with 14 feet of comparison amplifier IC3-4, and 12 feet, the resistance R26 of comparison amplifier IC3-4 is another
One end is connected with the one end resistance R27,13 feet of IC3-4, adjustable resistance RP3 is adjustable 2 foot of end, 3 foot of adjustable resistance RP3 fixing end,
The one end thermistor NTC1, the one end thermistor NTC2 are connected with the one end thermistor NTC3, the thermistor NTC1 other end with
Terminal T1 is connected, and the thermistor NTC2 other end is connected with terminal T2, and the thermistor NTC3 other end is connected with terminal T3, resistance
The R37 other end is connected with 1 foot of adjustable resistance RP4 fixing end, 3 foot of adjustable resistance RP4 fixing end, 3 foot of adjustable resistance RP9 fixing end
Be connected with terminal IL0, the resistance R38 other end is connected with 1 foot of adjustable resistance RP5 fixing end, 3 foot of adjustable resistance RP5 fixing end with
The one end resistance R40 is connected, and the resistance R39 other end is connected with 1 foot of adjustable resistance RP6 fixing end, 3 foot of adjustable resistance RP6 fixing end
It is connected with the one end resistance R41, the resistance R42 other end is connected with 1 foot of adjustable resistance RP7 fixing end, adjustable resistance RP7 fixing end 3
Foot is connected with the one end resistance R45, and the resistance R43 other end is connected with 1 foot of adjustable resistance RP8 fixing end, adjustable resistance RP8 fixing end
3 feet are connected with the one end resistance R46, and the resistance R44 other end is connected with 1 foot of adjustable resistance RP9 fixing end, and zener diode ZD1 is just
Pole, 3 foot of adjustable resistance RP1 fixing end, 3 foot of adjustable resistance RP2 fixing end, 11 feet of comparison amplifier IC2-4, triode V13
The pole e, the resistance R5 other end, the resistance R30 other end, the pole e of triode V21, diode D8 anode, triode V23 the pole e,
The resistance R51 other end, the resistance R6 other end, the resistance R7 other end, the pole e of triode V3, binary counter IC1 8 feet, electricity
Hold the C2 other end, the pole e of triode V7, the pole e of triode V8, the pole e of triode V9, the pole e of triode V10, triode V11
The pole e, the pole e of triode V12,11 feet of comparison amplifier IC3-4, the resistance R27 other end, the resistance R29 other end, triode
The pole e of V19, terminal COM, the resistance R40 other end, the resistance R41 other end, terminal VSS, the resistance R45 other end, resistance R46 are another
One end, the pole e of triode V25, the one end resistance R53, the one end resistance R54, the one end resistance R55, the one end resistance R56, resistance R57 mono-
End is connected with the resistance R58 other end, and the resistance R53 other end is connected with terminal IL1, and the resistance R54 other end is connected with terminal IL2,
The resistance R55 other end is connected with terminal IL3, and the resistance R56 other end is connected with terminal IL4, the resistance R57 other end and terminal IL5
It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610835740.6A CN107846001B (en) | 2016-09-18 | 2016-09-18 | The super temperature protective device of electronics three-stage overcurrent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610835740.6A CN107846001B (en) | 2016-09-18 | 2016-09-18 | The super temperature protective device of electronics three-stage overcurrent |
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| Publication Number | Publication Date |
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| CN107846001A CN107846001A (en) | 2018-03-27 |
| CN107846001B true CN107846001B (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610835740.6A Active CN107846001B (en) | 2016-09-18 | 2016-09-18 | The super temperature protective device of electronics three-stage overcurrent |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2235670Y (en) * | 1995-05-19 | 1996-09-18 | 周宝林 | Protector of accumulator for charging or discharging |
| CN203387284U (en) * | 2013-07-25 | 2014-01-08 | 湘潭市华宇科技有限公司 | Automatic charging and discharging power source controller |
| CN204205686U (en) * | 2014-12-06 | 2015-03-11 | 黄淮学院 | The DC uninterrupted stabilized voltage power supply of a kind of intrinsic safety type |
| CN204497822U (en) * | 2015-03-26 | 2015-07-22 | 泰州步步喜电子科技有限公司 | A kind of charging circuit |
-
2016
- 2016-09-18 CN CN201610835740.6A patent/CN107846001B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2235670Y (en) * | 1995-05-19 | 1996-09-18 | 周宝林 | Protector of accumulator for charging or discharging |
| CN203387284U (en) * | 2013-07-25 | 2014-01-08 | 湘潭市华宇科技有限公司 | Automatic charging and discharging power source controller |
| CN204205686U (en) * | 2014-12-06 | 2015-03-11 | 黄淮学院 | The DC uninterrupted stabilized voltage power supply of a kind of intrinsic safety type |
| CN204497822U (en) * | 2015-03-26 | 2015-07-22 | 泰州步步喜电子科技有限公司 | A kind of charging circuit |
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| Publication number | Publication date |
|---|---|
| CN107846001A (en) | 2018-03-27 |
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