CN201726176U - Charge control circuit with bidirectional reverse connection protection for storage batteries - Google Patents
Charge control circuit with bidirectional reverse connection protection for storage batteries Download PDFInfo
- Publication number
- CN201726176U CN201726176U CN2010202701075U CN201020270107U CN201726176U CN 201726176 U CN201726176 U CN 201726176U CN 2010202701075 U CN2010202701075 U CN 2010202701075U CN 201020270107 U CN201020270107 U CN 201020270107U CN 201726176 U CN201726176 U CN 201726176U
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- diode
- pipe
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- 230000002457 bidirectional Effects 0.000 title abstract 7
- 230000002441 reversible Effects 0.000 claims description 9
- 230000000875 corresponding Effects 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 abstract 3
- 230000005669 field effect Effects 0.000 description 59
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000000051 modifying Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
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 [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a charge control circuit with bidirectional reverse connection protection for storage batteries, consisting of a terminal 1, an input terminal 2, a terminal 3, a p-channel field-effect transistor 4, a resistor 5, a p-channel field-effect transistor 6, a diode 7, a resistor 8, a resistor 9, a diode 10, a capacitor 11, a resistor 12, a photocoupler 13, a resistor 14, a photocoupler 15, a resistor 16, a capacitor 17, an NPN crystal triode 18, a resistor 19, a capacitor 20, a resistor 21, a terminal 22 and a terminal 23. The charge control circuit with bidirectional reverse connection protection for the storage batteries adopts the design of complete symmetrical circuits, and can also carry out programmable charging on the storage batteries while realizing the bidirectional reverse connection protection of a charging power and the storage batteries. The charge control circuit with bidirectional reverse connection protection for the storage batteries can be effectively applied to electromobiles, other electric vehicles and various high-power charging devices, and can be widely applied to and effectively protect various direct current power supply systems, therefore, the reliability of the system can be improved and windfall loss caused by misuse can be reduced. The charge control circuit with bidirectional reverse connection protection for the storage batteries is especially applicable to solar and wind power supply systems to carry out programmable charging and bidirectional reverse connection protection on the storage batteries, thereby greatly improving the working performance and the reliability of the solar and wind power supply systems.
Description
Technical field
The utility model relates to the battery charge protection technology, particularly a kind of storage battery charge control circuit that adopts two-way reverse connecting protection.
Background technology
At present, adopt new forms of energy to become the urgent problem that current mankind faces.When adopting new forms of energy to be used for power and illumination, often need to dispose the storage battery power supply system.When using the storage battery power supply system, no matter charge power supply reversal connection or reverse connection of accumulator all can bring serious consequence.In the prior art, generally adopt fuse, relay, diode, thyristor, transistor and diode to connect charge power supply reversal connection or reverse connection of accumulator protected, adopt above method all to have following shortcoming with field effect transistor:
Though adopt the disposable protection of fuse simple, after the fuse blows, need the artificial fuse that more renews, very inconvenient;
Adopt relay protection, burn easily the contact during big current work, and contact break-make number of times is limited; Adopting diode, thyristor, transistor and diode connects with field effect transistor and protecting all has conducting resistance big, and power loss is big or the like during current work greatly.
The utility model content
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and a kind of storage battery charge control circuit that adopts two-way reverse connecting protection is provided.
The technical solution of the utility model is: a kind of storage battery charge control circuit that adopts two-way reverse connecting protection, form by terminal 1, input terminal 2, terminal 3, P-channel field-effect transistor (PEFT) pipe 4, resistance 5, P-channel field-effect transistor (PEFT) pipe 6, diode 7, resistance 8, resistance 9, diode 10, electric capacity 11, resistance 12, photoelectrical coupler 13, resistance 14, photoelectrical coupler 15, resistance 16, electric capacity 17, NPN transistor 18, resistance 19, electric capacity 20, resistance 21, terminal 22, terminal 23.
Terminal 1 respectively with diode 7 positive poles, the source electrode of P-channel field-effect transistor (PEFT) pipe 4 (S), resistance 8 connects, the other end of resistance 8 respectively with the grid (G) of P-channel field-effect transistor (PEFT) pipe 4, resistance 14, the grid of P-channel field-effect transistor (PEFT) pipe 6 (G), resistance 9 connects, the other end of resistance 9 respectively with the source electrode (S) of P-channel field-effect transistor (PEFT) pipe 6, diode 10 positive poles, terminal 22 connects, one end of resistance 5 is connected with the drain electrode (D) of P-channel field-effect transistor (PEFT) pipe 4, the other end of resistance 5 is connected with the drain electrode (D) of P-channel field-effect transistor (PEFT) pipe 6, diode 7 negative poles respectively with resistance 12, electric capacity 11 connects, the other end of resistance 12 is connected with the light-emitting diode in the photoelectrical coupler 13 is anodal, the other end ground connection of electric capacity 11, light-emitting diode minus earth in the photoelectrical coupler 13, phototriode collector electrode in the photoelectrical coupler 13 is connected with phototriode emitter in the photoelectrical coupler 15, phototriode emitter in the photoelectrical coupler 13 is connected with the collector electrode of NPN transistor 18, the grounded emitter of NPN transistor 18, the base stage of NPN transistor 18 respectively with resistance 19, resistance 21 connects, the other end ground connection of resistance 21, the other end of resistance 19 is connected with electric capacity 20 and is connected with input terminal 2, the other end ground connection of electric capacity 20, phototriode collector electrode in the photoelectrical coupler 15 is connected with the other end of resistance 14, diode 10 negative poles respectively with resistance 16, electric capacity 17 connects, the other end ground connection of electric capacity 17, the other end of resistance 16 is connected with the light-emitting diode in the photoelectrical coupler 15 is anodal, light-emitting diode minus earth in the photoelectrical coupler 15, terminal 3 and terminal 23 ground connection.
The further technical scheme of the utility model is: can substitute P-channel field-effect transistor (PEFT) pipe 4 and P-channel field-effect transistor (PEFT) pipe 6 with PNP transistor.At this moment, be connected to the position of P-channel field-effect transistor (PEFT) tube grid (G), drain electrode (D) and source electrode (S) respectively by the corresponding one by one replacement of PNP transistor base stage (B), collector electrode (C) and emitter (E) institute.There is not integrated fly-wheel diode in PNP transistor inside, when replacing use, need to connect a diode between every PNP transistor collector electrode (C) and the emitter (E), its anodal PNP transistor collector electrode (C) that connects, negative pole connects PNP transistor emitter (E).
The further again technical scheme of the utility model is: can substitute P-channel field-effect transistor (PEFT) pipe 4 and P-channel field-effect transistor (PEFT) pipe 6 with N channel field-effect pipe.At this moment, charge power supply 24 during with storage battery 25 operate as normal polarity all should reversal connection, promptly charge power supply 24 negative poles are connected to terminal 1, charge power supply 24 plus earths; Storage battery 25 negative poles are connected to terminal 22, storage battery 25 plus earths.
The utility model further technical scheme is: can substitute N channel field-effect pipe with NPN transistor, at this moment, be connected to the position of N channel field-effect tube grid (G), drain electrode (D) and source electrode (S) respectively by the corresponding one by one replacement of NPN transistor base stage (B), collector electrode (C) and emitter (E) institute.There is not integrated fly-wheel diode in NPN transistor inside, when replacing use, need to connect a diode between every NPN transistor collector electrode (C) and the emitter (E), its anodal NPN transistor emitter (E) that connects, negative pole connects NPN transistor collector electrode (C).
Its operation principle of storage battery charge control circuit of the employing two-way reverse connecting protection that the utility model provides is as follows: under the normal condition; charge power supply 24 positive poles are connected to terminal 1; charge power supply 24 minus earths, storage battery 25 positive poles are connected to terminal 22, storage battery 25 minus earths.When charge power supply 24 cathode voltages load on diode 7 positive poles, diode 7 conductings, electric current forms the loop by light-emitting diode minus earth in light-emitting diode positive pole, the photoelectrical coupler 13 in diode 7, resistance 12, the photoelectrical coupler 13, light-emitting diode work in the photoelectrical coupler 13, phototriode conducting in the photoelectrical coupler 13.When storage battery 25 cathode voltages load on diode 10 positive poles, diode 10 conductings, electric current forms the loop by light-emitting diode minus earth in light-emitting diode positive pole, the photoelectrical coupler 15 in diode 10, resistance 16, the photoelectrical coupler 15, light-emitting diode work in the photoelectrical coupler 15, phototriode conducting in the photoelectrical coupler 15.Because the grid (G) of grid of P-channel field-effect transistor (PEFT) pipe 4 (G) and P-channel field-effect transistor (PEFT) pipe 6 is all by phototriode, NPN transistor 18 ground connection in phototriode, the photoelectrical coupler 15 in resistance 14, the photoelectrical coupler 13, so in phototriode, photoelectrical coupler 15 in the photoelectrical coupler 15 phototriode, when NPN transistor 18 all is in conducting state, P-channel field-effect transistor (PEFT) pipe 4 and P-channel field-effect transistor (PEFT) pipe 6 also can be in conducting state simultaneously.At this moment, charge power supply 24 positive poles are by P-channel field-effect transistor (PEFT) pipe 4, resistance 5 and P-channel field-effect transistor (PEFT) pipe 6 and 25 anodal connections of storage battery, and charge power supply 24 charges normal to storage battery 25.The utility model circuit can be operated in simple guard mode, also can be operated in programmable state: circuit working should make input terminal 2 be in high level all the time when simple guard mode; Circuit working is when programmable state, by input terminal 2 input programming signal such as pulse-width modulation (PWM) signals.Resistance 5 is connected between the drain electrode (D) of the drain electrode (D) of P-channel field-effect transistor (PEFT) pipe 4 and P-channel field-effect transistor (PEFT) pipe 6, and its effect one is a current limliting; The 2nd, when charge power supply or storage battery incorrect link, set up the starting voltage of reverse connecting protection.
Because modern field effect transistor improvement of Manufacturing Technology, the conducting resistance of field effect transistor can be very little (minimum reach several milliohms).Therefore, by selecting field effect transistor 4 and field effect transistor 6, can under current state, work well so that power consumption of the present utility model is very little.In the circuit in the photoelectrical coupler 13 phototriode in phototriode, the photoelectrical coupler 15, NPN transistor 18 form three input AND circuit, when the conducting simultaneously of phototriode in phototriode, the photoelectrical coupler 15 in the photoelectrical coupler 13, can realize every required function by input terminal 2 control NPN transistors 18: charge function 1. able to programme: input pulse-width modulation programming signals such as (PWM) control charging process; 2. switching function: charging circuit can be opened or turn-off to input high level or low level; 3. defencive function: but when circuit overcurrent, overvoltage breaking circuit.
If charge power supply or storage battery connection error, three kinds of connection status may appear in circuit:
1, charge power supply reversal connection:
During charge power supply 24 reversal connections, the power cathode mistake is connected to terminal 1, positive source ground connection; Storage battery 25 normally connects, and promptly storage battery 25 positive poles are connected to terminal 22, storage battery 25 minus earths.At this moment, charge power supply 24 cathode voltages load on diode 7 positive poles, diode 7 can conducting in this case, there is not electric current to flow through the loop that forms by light-emitting diode minus earth in light-emitting diode positive pole, the photoelectrical coupler 13 in resistance 12, the photoelectrical coupler 13, light-emitting diode is not worked in the photoelectrical coupler 13, and phototriode turn-offs in the photoelectrical coupler 13.Because the grid (G) of P-channel field-effect transistor (PEFT) pipe 4 and the grid (G) of P-channel field-effect transistor (PEFT) pipe 6 are by resistance 14 with by phototriode in the photoelectrical coupler 13; phototriode in the photoelectrical coupler 15; three inputs that NPN transistor 18 is formed and door ground connection; so phototriode in photoelectrical coupler 15; in the photoelectrical coupler 15 in phototriode and the NPN transistor 18 arbitrary device turn-off and all can turn-off P-channel field-effect transistor (PEFT) pipe 4 and P-channel field-effect transistor (PEFT) pipe 6 simultaneously; thereby disconnect being electrically connected between charge power supply 24 negative poles and storage battery 25 positive poles, protected charge power supply 24 and storage battery 25 effectively.
2, reverse connection of accumulator:
During storage battery 25 reversal connections, storage battery 25 negative poles mistake splicing ear 22, storage battery 25 positive poles are connected to ground; Charge power supply 24 normally connects, and promptly charge power supply 24 positive poles are connected to terminal 1, power cathode ground connection.At this moment, storage battery 25 cathode voltages load on diode 10 positive poles, diode 10 can conducting in this case, there is not electric current to flow through the loop that forms by light-emitting diode minus earth in light-emitting diode positive pole, the photoelectrical coupler 15 in resistance 16, the photoelectrical coupler 15, light-emitting diode is not worked in the photoelectrical coupler 15, and phototriode turn-offs in the photoelectrical coupler 15.Because the grid (G) of P-channel field-effect transistor (PEFT) pipe 4 and the grid (G) of P-channel field-effect transistor (PEFT) pipe 6 are by resistance 14 with by phototriode in the photoelectrical coupler 13; phototriode in the photoelectrical coupler 15; three inputs that transistor 18 is formed and door ground connection; so phototriode in photoelectrical coupler 15; in the photoelectrical coupler 15 in phototriode and the transistor 18 arbitrary device turn-off and all can turn-off P-channel field-effect transistor (PEFT) pipe 4 and P-channel field-effect transistor (PEFT) pipe 6 simultaneously; thereby disconnected being electrically connected between charge power supply 24 positive poles and storage battery 25 negative poles, protected charge power supply 24 and storage battery 25 effectively.
3, the equal reversal connection of charge power supply and storage battery:
Can draw by principle above-mentioned 1,2 two kind of circuit connection state; when the equal reversal connection of charge power supply 24 and storage battery 25; light-emitting diode is not all worked in photoelectrical coupler 13, the photoelectrical coupler 15; phototriode shutoff in phototriode, the photoelectrical coupler 15 in the photoelectrical coupler 15; P-channel field-effect transistor (PEFT) pipe 4 and P-channel field-effect transistor (PEFT) pipe 6 have been turn-offed simultaneously; thereby disconnected being electrically connected between charge power supply 24 negative poles and storage battery 25 negative poles, protected charge power supply 24 and storage battery 25 effectively.
Because the utility model adopts the holohedral symmetry circuit design, so terminal 1 can exchange with terminal 22 and be connected in actual use, terminal 3 can exchange with terminal 23 and be connected, and has greatly improved the reliability of circuit.
The utility model compared with prior art has following characteristics:
1, the utility model adopts the holohedral symmetry circuit design, and input terminal can exchange with lead-out terminal and use in actual use, has greatly improved the reliability of circuit working.
When 2, the utility model adopts the high-power MOS field effect transistor as protection device; its conducting resistance very little (minimum reach several milliohms); therefore power loss during use can work under current state well far below adopting other element such as diode or silicon controlled circuit.
3, the utility model is when realizing charge power supply and storage battery two-way reverse connecting protection; also can carry out charging able to programme to storage battery; it is applied to all kinds of high-power battery electric power systems such as electric automobile and other motor vehicle, will improve the service behaviour and the reliability of system greatly.
4, the utility model is particularly suitable in the solar wind-energy electric power system storage battery being carried out charging able to programme and two-way reverse connecting protection, has improved the service behaviour and the reliability of solar wind-energy electric power system.
5, the utility model also can be widely used in all kinds of DC power-supply system, and it is effectively protected, and improves the reliability of system, reduces the accidental loss that causes because of improper use.
Below in conjunction with the drawings and specific embodiments detailed structure of the present utility model is further described.
Description of drawings
Accompanying drawing 1 adopts the circuit diagram of P-channel field-effect transistor (PEFT) pipe for the utility model;
Accompanying drawing 2 adopts the transistorized circuit diagram of PNP for the utility model;
Accompanying drawing 3 adopts the circuit diagram of N channel field-effect pipe for the utility model;
Accompanying drawing 4 adopts the circuit diagram of NPN transistor for the utility model.
Embodiment
Embodiment one, as shown in Figure 1: a kind of storage battery charge control circuit that adopts two-way reverse connecting protection, form by terminal 1, input terminal 2, terminal 3, P-channel field-effect transistor (PEFT) pipe 4, resistance 5, P-channel field-effect transistor (PEFT) pipe 6, diode 7, resistance 8, resistance 9, diode 10, electric capacity 11, resistance 12, photoelectrical coupler 13, resistance 14, photoelectrical coupler 15, resistance 16, electric capacity 17, NPN transistor 18, resistance 19, electric capacity 20, resistance 21, terminal 22, terminal 23.
Terminal 1 respectively with diode 7 positive poles, the source electrode of P-channel field-effect transistor (PEFT) pipe 4 (S), resistance 8 connects, the other end of resistance 8 respectively with the grid (G) of P-channel field-effect transistor (PEFT) pipe 4, resistance 14, the grid of P-channel field-effect transistor (PEFT) pipe 6 (G), resistance 9 connects, the other end of resistance 9 respectively with the source electrode (S) of P-channel field-effect transistor (PEFT) pipe 6, diode 10 positive poles, terminal 22 connects, one end of resistance 5 is connected with the drain electrode (D) of P-channel field-effect transistor (PEFT) pipe 4, the other end of resistance 5 is connected with the drain electrode (D) of P-channel field-effect transistor (PEFT) pipe 6, diode 7 negative poles respectively with resistance 12, electric capacity 11 connects, the other end of resistance 12 is connected with the light-emitting diode in the photoelectrical coupler 13 is anodal, the other end ground connection of electric capacity 11, light-emitting diode minus earth in the photoelectrical coupler 13, phototriode collector electrode in the photoelectrical coupler 13 is connected with phototriode emitter in the photoelectrical coupler 15, phototriode emitter in the photoelectrical coupler 13 is connected with the collector electrode of NPN transistor 18, the grounded emitter of NPN transistor 18, the base stage of NPN transistor 18 respectively with resistance 19, resistance 21 connects, 1 other end ground connection of resistance 21, the other end of resistance 19 is connected with electric capacity 20 and is connected with input terminal 2, the other end ground connection of electric capacity 20, phototriode collector electrode in the photoelectrical coupler 15 is connected with the other end of resistance 14, diode 10 negative poles respectively with resistance 16, electric capacity 17 connects, the other end ground connection of electric capacity 17, the other end of resistance 16 is connected with the light-emitting diode in the photoelectrical coupler 15 is anodal, light-emitting diode minus earth in the photoelectrical coupler 15, terminal 3 and terminal 23 ground connection.
Embodiment two, as shown in Figure 2: a kind of storage battery charge control circuit that adopts two-way reverse connecting protection, form by terminal 1, input terminal 2, terminal 3, PNP transistor 4, resistance 5, PNP transistor 6, diode 7, resistance 8, resistance 9, diode 10, electric capacity 11, resistance 12, photoelectrical coupler 13, resistance 14, photoelectrical coupler 15, resistance 16, electric capacity 17, NPN transistor 18, resistance 19, electric capacity 20, resistance 21, terminal 22, terminal 23, diode 26, diode 27.
Terminal 1 respectively with diode 7 positive poles, the emitter of PNP transistor 4 (E), resistance 8, diode 26 negative poles connect, the other end of resistance 8 respectively with the base stage (B) of PNP transistor 4, resistance 14, the base stage of PNP transistor 6 (B), resistance 9 connects, the other end of resistance 9 respectively with the emitter (E) of PNP transistor 6, diode 27 negative poles, diode 10 positive poles, terminal 22 connects, the collector electrode (C) of one end of resistance 5 and PNP transistor 4,26 anodal connections of diode, the collector electrode of the other end of resistance 5 and PNP transistor 6 (C), 27 anodal connections of diode, diode 7 negative poles respectively with resistance 12, electric capacity 11 connects, the other end of resistance 12 is connected with the light-emitting diode in the photoelectrical coupler 13 is anodal, the other end ground connection of electric capacity 11, light-emitting diode minus earth in the photoelectrical coupler 13, phototriode collector electrode in the photoelectrical coupler 13 is connected with phototriode emitter in the photoelectrical coupler 15, phototriode emitter in the photoelectrical coupler 13 is connected with the collector electrode of NPN transistor 18, the grounded emitter of NPN transistor 18, the base stage of NPN transistor 18 respectively with resistance 19, resistance 21 connects, 1 other end ground connection of resistance 21, the other end of resistance 19 is connected with electric capacity 20 and is connected with input terminal 2, the other end ground connection of electric capacity 20, phototriode collector electrode in the photoelectrical coupler 15 is connected with the other end of resistance 14, diode 10 negative poles respectively with resistance 16, electric capacity 17 connects, the other end ground connection of electric capacity 17, the other end of resistance 16 is connected with the light-emitting diode in the photoelectrical coupler 15 is anodal, light-emitting diode minus earth in the photoelectrical coupler 15, terminal 3 and terminal 23 ground connection.
Embodiment three, as shown in Figure 3: a kind of storage battery charge control circuit that adopts two-way reverse connecting protection, form by terminal 1, input terminal 2, terminal 3, N channel field-effect pipe 4, resistance 5, N channel field-effect pipe 6, diode 7, resistance 8, resistance 9, diode 10, electric capacity 11, resistance 12, photoelectrical coupler 13, resistance 14, photoelectrical coupler 15, resistance 16, electric capacity 17, PNP transistor 18, resistance 19, electric capacity 20, resistance 21, terminal 22, terminal 23.
Terminal 1 respectively with diode 7 negative poles, the source electrode (S) of N channel field-effect pipe 4, resistance 8 connects, the other end of resistance 8 respectively with the grid (G) of N channel field-effect pipe 4, resistance 14, the grid (G) of N channel field-effect pipe 6, resistance 9 connects, the other end of resistance 9 respectively with the source electrode (S) of N channel field-effect pipe 6, diode 10 negative poles, terminal 22 connects, one end of resistance 5 is connected with the drain electrode (D) of N channel field-effect pipe 4, the other end of resistance 5 is connected with the drain electrode (D) of N channel field-effect pipe 6, diode 7 positive poles respectively with resistance 12, electric capacity 11 connects, the other end of resistance 12 is connected with light-emitting diode negative pole in the photoelectrical coupler 13, the other end ground connection of electric capacity 11, light-emitting diode plus earth in the photoelectrical coupler 13, phototriode emitter in the photoelectrical coupler 13 is connected with phototriode collector electrode in the photoelectrical coupler 15, phototriode collector electrode in the photoelectrical coupler 13 is connected with the collector electrode of PNP transistor 18, the grounded emitter of PNP transistor 18, the base stage of PNP transistor 18 respectively with resistance 19, resistance 21 connects, 1 other end ground connection of resistance 21, the other end of resistance 19 is connected with electric capacity 20 and is connected with input terminal 2, the other end ground connection of electric capacity 20, phototriode emitter in the photoelectrical coupler 15 is connected with the other end of resistance 14, diode 10 positive poles respectively with resistance 16, electric capacity 17 connects, the other end ground connection of electric capacity 17, the other end of resistance 16 is connected with light-emitting diode negative pole in the photoelectrical coupler 15, light-emitting diode plus earth in the photoelectrical coupler 15, terminal 3 and terminal 23 ground connection.
Embodiment four, as shown in Figure 4: a kind of storage battery charge control circuit that adopts two-way reverse connecting protection, form by terminal 1, input terminal 2, terminal 3, NPN transistor 4, resistance 5, NPN transistor 6, diode 7, resistance 8, resistance 9, diode 10, electric capacity 11, resistance 12, photoelectrical coupler 13, resistance 14, photoelectrical coupler 15, resistance 16, electric capacity 17, PNP transistor 18, resistance 19, electric capacity 20, resistance 21, terminal 22, terminal 23, diode 26, diode 27.
Terminal 1 respectively with diode 7 negative poles, the emitter of NPN transistor 4 (E), resistance 8,26 anodal connections of diode, the other end of resistance 8 respectively with the base stage (B) of NPN transistor 4, resistance 14, the base stage of NPN transistor 6 (B), resistance 9 connects, the other end of resistance 9 respectively with the emitter (E) of NPN transistor 6, diode 10 negative poles, diode 27 positive poles, terminal 22 connects, the collector electrode (C) of one end of resistance 5 and NPN transistor 4, diode 26 negative poles connect, the collector electrode of the other end of resistance 5 and NPN transistor 6 (C), diode 27 negative poles connect, diode 7 positive poles respectively with resistance 12, electric capacity 11 connects, the other end of resistance 12 is connected with light-emitting diode negative pole in the photoelectrical coupler 13, the other end ground connection of electric capacity 11, light-emitting diode plus earth in the photoelectrical coupler 13, phototriode emitter in the photoelectrical coupler 13 is connected with phototriode collector electrode in the photoelectrical coupler 15, phototriode collector electrode in the photoelectrical coupler 13 is connected with the collector electrode of PNP transistor 18, the grounded emitter of PNP transistor 18, the base stage of PNP transistor 18 respectively with resistance 19, resistance 21 connects, 1 other end ground connection of resistance 21, the other end of resistance 19 is connected with electric capacity 20 and is connected with input terminal 2, the other end ground connection of electric capacity 20, phototriode emitter in the photoelectrical coupler 15 is connected with the other end of resistance 14, diode 10 positive poles respectively with resistance 16, electric capacity 17 connects, the other end ground connection of electric capacity 17, the other end of resistance 16 is connected with light-emitting diode negative pole in the photoelectrical coupler 15, light-emitting diode plus earth in the photoelectrical coupler 15, terminal 3 and terminal 23 ground connection.
Specific embodiment described herein only is that design of the present utility model is specified, the utility model person of ordinary skill in the field can make modification miscellaneous or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (4)
1. a storage battery charge control circuit that adopts two-way reverse connecting protection is characterized in that: be made up of terminal 1, input terminal 2, terminal 3, P-channel field-effect transistor (PEFT) pipe 4, resistance 5, P-channel field-effect transistor (PEFT) pipe 6, diode 7, resistance 8, resistance 9, diode 10, electric capacity 11, resistance 12, photoelectrical coupler 13, resistance 14, photoelectrical coupler 15, resistance 16, electric capacity 17, NPN transistor 18, resistance 19, electric capacity 20, resistance 21, terminal 22, terminal 23;
Terminal 1 respectively with diode 7 positive poles, the source electrode of P-channel field-effect transistor (PEFT) pipe 4 (S), resistance 8 connects, the other end of resistance 8 respectively with the grid (G) of P-channel field-effect transistor (PEFT) pipe 4, resistance 14, the grid of P-channel field-effect transistor (PEFT) pipe 6 (G), resistance 9 connects, the other end of resistance 9 respectively with the source electrode (S) of P-channel field-effect transistor (PEFT) pipe 6, diode 10 positive poles, terminal 22 connects, one end of resistance 5 is connected with the drain electrode (D) of P-channel field-effect transistor (PEFT) pipe 4, the other end of resistance 5 is connected with the drain electrode (D) of P-channel field-effect transistor (PEFT) pipe 6, diode 7 negative poles respectively with resistance 12, electric capacity 11 connects, the other end of resistance 12 is connected with the light-emitting diode in the photoelectrical coupler 13 is anodal, the other end ground connection of electric capacity 11, light-emitting diode minus earth in the photoelectrical coupler 13, phototriode collector electrode in the photoelectrical coupler 13 is connected with phototriode emitter in the photoelectrical coupler 15, phototriode emitter in the photoelectrical coupler 13 is connected with the collector electrode of NPN transistor 18, the grounded emitter of NPN transistor 18, the base stage of NPN transistor 18 respectively with resistance 19, resistance 21 connects, the other end ground connection of resistance 21, the other end of resistance 19 is connected with electric capacity 20 and is connected with input terminal 2, the other end ground connection of electric capacity 20, phototriode collector electrode in the photoelectrical coupler 15 is connected with the other end of resistance 14, diode 10 negative poles respectively with resistance 16, electric capacity 17 connects, the other end ground connection of electric capacity 17, the other end of resistance 16 is connected with the light-emitting diode in the photoelectrical coupler 15 is anodal, light-emitting diode minus earth in the photoelectrical coupler 15, terminal 3 and terminal 23 ground connection.
2. a kind of storage battery charge control circuit that adopts two-way reverse connecting protection according to claim 1; it is characterized in that: can substitute P-channel field-effect transistor (PEFT) pipe 4 and P-channel field-effect transistor (PEFT) pipe 6 with PNP transistor; at this moment be connected to P-channel field-effect transistor (PEFT) tube grid (G); the position of drain electrode (D) and source electrode (S) is respectively by PNP transistor base stage (B); collector electrode (C) and emitter (E) institute are corresponding one by one to be replaced; there is not integrated fly-wheel diode in PNP transistor inside; when replacing use; need to connect a diode between every PNP transistor collector electrode (C) and the emitter (E); its anodal PNP transistor collector electrode (C) that connects, negative pole connects PNP transistor emitter (E).
3. a kind of storage battery charge control circuit that adopts two-way reverse connecting protection according to claim 1; it is characterized in that: can substitute P-channel field-effect transistor (PEFT) pipe 4 and P-channel field-effect transistor (PEFT) pipe 6 with N channel field-effect pipe; at this moment the operate as normal polarity of charge power supply 24 and storage battery 25 all should reversal connection; be that charge power supply 24 negative poles are connected to terminal 1, charge power supply 24 plus earths; storage battery 25 negative poles are connected to terminal 22, storage battery 25 plus earths.
4. a kind of storage battery charge control circuit that adopts two-way reverse connecting protection according to claim 3; it is characterized in that: can substitute N channel field-effect pipe with NPN transistor; at this moment be connected to N channel field-effect tube grid (G); the position of drain electrode (D) and source electrode (S) is respectively by NPN transistor base stage (B); collector electrode (C) and emitter (E) institute are corresponding one by one to be replaced; there is not integrated fly-wheel diode in NPN transistor inside; when replacing use; need to connect a diode between every NPN transistor collector electrode (C) and the emitter (E); its anodal NPN transistor emitter (E) that connects, negative pole connects NPN transistor collector electrode (C).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202701075U CN201726176U (en) | 2010-07-20 | 2010-07-20 | Charge control circuit with bidirectional reverse connection protection for storage batteries |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202701075U CN201726176U (en) | 2010-07-20 | 2010-07-20 | Charge control circuit with bidirectional reverse connection protection for storage batteries |
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| CN201726176U true CN201726176U (en) | 2011-01-26 |
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| CN2010202701075U Expired - Lifetime CN201726176U (en) | 2010-07-20 | 2010-07-20 | Charge control circuit with bidirectional reverse connection protection for storage batteries |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888109A (en) * | 2010-07-20 | 2010-11-17 | 衡阳中微科技开发有限公司 | Storage battery charge control circuit adopting two-way reverse connecting protection |
| CN104238593A (en) * | 2014-09-17 | 2014-12-24 | 张静 | Novel efficient temperature controller |
| CN104377685A (en) * | 2014-12-04 | 2015-02-25 | 安徽巨一自动化装备有限公司 | Motor controller anti-reverse-connection and anti-back-flow redundancy power supply circuit for electric car |
| CN104617562A (en) * | 2015-02-16 | 2015-05-13 | 中国北方车辆研究所 | Vehicle inverted connection proof device |
| CN104821543A (en) * | 2015-05-19 | 2015-08-05 | 中国兵器工业集团第二一四研究所苏州研发中心 | Device with function of isolation DC/DC power supply input under-voltage or power-off protection |
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2010
- 2010-07-20 CN CN2010202701075U patent/CN201726176U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888109A (en) * | 2010-07-20 | 2010-11-17 | 衡阳中微科技开发有限公司 | Storage battery charge control circuit adopting two-way reverse connecting protection |
| CN104238593A (en) * | 2014-09-17 | 2014-12-24 | 张静 | Novel efficient temperature controller |
| CN104377685A (en) * | 2014-12-04 | 2015-02-25 | 安徽巨一自动化装备有限公司 | Motor controller anti-reverse-connection and anti-back-flow redundancy power supply circuit for electric car |
| CN104377685B (en) * | 2014-12-04 | 2017-12-19 | 安徽巨一自动化装备有限公司 | The redundant power supply circuit that a kind of electric machine controller for motor vehicle reverse connection preventing pours in down a chimney |
| CN104617562A (en) * | 2015-02-16 | 2015-05-13 | 中国北方车辆研究所 | Vehicle inverted connection proof device |
| CN104821543A (en) * | 2015-05-19 | 2015-08-05 | 中国兵器工业集团第二一四研究所苏州研发中心 | Device with function of isolation DC/DC power supply input under-voltage or power-off protection |
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Granted publication date: 20110126 Effective date of abandoning: 20130227 |