CN203039413U - Electric vehicle charger circuit - Google Patents
Electric vehicle charger circuit Download PDFInfo
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- CN203039413U CN203039413U CN 201220729130 CN201220729130U CN203039413U CN 203039413 U CN203039413 U CN 203039413U CN 201220729130 CN201220729130 CN 201220729130 CN 201220729130 U CN201220729130 U CN 201220729130U CN 203039413 U CN203039413 U CN 203039413U
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Abstract
The utility model discloses an electric vehicle charger circuit. By sampling the charge current and the battery end voltage of a charged battery and by controlling an indicating lamp circuit which is relatively independent, a new charging mode: charging-lamp turning-maintenance-floating is provided. The phenomenon that a charger does not carry out lamp turning, which is caused by thermal runaway of an old battery, is reduced. According to the utility model, the electric vehicle charger circuit has the advantages of simple circuit and low cost, and the charger is well compatible with environmental temperature, and new and old batteries.
Description
Technical field
The utility model relates to a kind of circuit, relates in particular to a kind of electric car charger circuit.
Background technology
Along with people to the raising of environmental consciousness and country to the pay attention to day by day of efforts at environmental protection, electric motor car has become the important walking-replacing tool of people.And electric car charger is the accessory of electric motor car interwoveness.New battery charge under common electrical motor-car charger uses for normal temperature environment is no problem substantially.New used batteries under hot environment when also having the used batteries normal temperature charging of some dehydrations, thermal runaway very easily occurs, and the lighter causes does not change lamp, cause the user can not in time grasp the situation of battery charge, and are heavy then fill bulging battery.
The utility model content
The utility model purpose is exactly in order to remedy the defective of prior art, provide a kind of can be to ambient temperature, the reasonable electric car charger circuit of the new and old compatibility of battery.
The utility model is achieved through the following technical solutions:
A kind of electric car charger circuit, include the output port J3 that is connected to battery of electric vehicle, J4, described J3, J4 connects the output main winding N1 of switch transformer ST and the first terminal N21 of output auxiliary winding respectively, J3, be parallel with resistance R 19 between the J4, electrochemical capacitor C7 in parallel between the output main winding N1 of switch transformer ST and the output auxiliary winding the first terminal N21, export auxiliary winding the first terminal N21 and export electrochemical capacitor C8 in parallel between the auxiliary winding second terminal N22, be connected with fast recovery rectifier diode V2 on the output main winding N1 of switch transformer ST, the two ends of fast recovery rectifier diode V2 are parallel with fast recovery rectifier diode V1, also be in series with resistance R 4 and diode V8 between the first terminal N21 of switch transformer ST output auxiliary winding and the port J4, be connected with quick rectification diode V7 on the output auxiliary winding second terminal N22 of switch transformer ST, lead-out wire a is arranged and be connected with resistance R 14 in turn on the output auxiliary winding second terminal N22 of switch transformer ST, photoelectrical coupler U3 just, the output of negative pole and three terminal regulator U6 and input, described photoelectrical coupler U3 just, be parallel with resistance R 13 between the negative pole, be parallel with capacitor C 3 and resistance R 10 between the collector electrode of photoelectrical coupler U3 and the emitter respectively, be parallel with polar capacitor C9 between the output of three terminal regulator U6 and the sampling end, lead-out wire b is arranged and be connected with resistance R 15 in turn on the output main winding N1 of switch transformer ST, R16 and R24, node 1 is arranged between resistance R 16 and the R24, described node 1 connects the sampling end of three terminal regulator U6, be connected with the end of fan PS1 on the output auxiliary winding second terminal N22 of switch transformer ST, the other end of fan PS1 connects the emitter of triode Q4, be connected with resistance R 32 on the base stage in turn, the negative pole of R20 and diode D7, the negative pole connected node 1 of diode D7, be parallel with voltage stabilizing didoe D8 between the base stage of triode Q4 and the switch transformer ST output auxiliary winding second terminal N22, the collector electrode of triode Q4 connects resistance R 33, between described resistance R 32 and the R20 node 2 is arranged, node 2 connects first output of dual operational amplifier U4, be connected capacitor C 10 between first output and first inverting input, the positive supply of dual operational amplifier U4 connects the output auxiliary winding second terminal N22 of switch transformer ST, between the output auxiliary winding second terminal N22 and the positive supply node 3 is arranged, node 3 and first operational amplifier are connected with resistance R 18 and resistance R 22 in the same way between the input, resistance R 22 and first operational amplifier are connected an end of resistance R 25 in the same way between the input, the first operational amplifier reverse input end is connected with the second operational amplifier reverse input end and the centre is provided with node 4, be provided with node 5 between resistance R 4 and the diode V8, be connected resistance R 21 between node 4 and the node 5, second operational amplifier output terminal of dual operational amplifier U4 and be connected with resistance R 26 in the same way between the input, be provided with node 6 between resistance R 18 and the resistance R 22, node 6 and second operational amplifier are connected with resistance R 27 in the same way between the input, be provided with node 7 between resistance R 27 and the node 6, node 7 connects the negative pole of voltage stabilizing didoe D9, second operational amplifier input in the same way also connects an end of resistance R 23, also be provided with lead-out wire c on the output auxiliary winding second terminal N22 of switch transformer ST, lead-out wire c is divided into two-way, one the tunnel connects the positive pole of resistance R 31 and LED lamp LED1 successively, another road connects resistance R 30, the other end of resistance R 30 is divided into two-way, one the tunnel is just connecting LED lamp LED2 successively, the negative pole of negative pole and voltage stabilizing didoe D10, another road is just connecting LED lamp LED3 successively, the positive pole of negative pole and diode D6, the negative pole of diode D6 connects the output of second operational amplifier, with the emitter of lead with photoelectrical coupler U3, the input of three terminal regulator U6, resistance R 24, the negative supply of dual operational amplifier U4, resistance R 25, resistance R 23, the positive pole of voltage stabilizing didoe D9, the positive pole of voltage stabilizing didoe D10, the negative pole of LED lamp LED1 and resistance R 33 couple together and common ground, also are connected with capacitor C 11 between the input of the emitter of photoelectrical coupler U3 and three terminal regulator U6.
Also first reverse input end of dual operational amplifier U4 can be connected with second reverse input end, resistance R 21 is connected between node 5 and first reverse input end, d on the lead-out wire is arranged and be connected with resistance R 17 in turn and resistance R 34 on the output main winding N1 of switch transformer ST, be provided with node 8 between resistance R 17 and the resistance R 34, node 8 is connected with the reverse input end of second operational amplifier.
The two ends of described resistance R 10 connect the Switching Power Supply output.
The model of described photoelectrical coupler U3 is PC817; The model of described dual operational amplifier U4 is LM358; The model of described three terminal regulator U6 is TL431.
---floating charge that the commentaries on classics lamp--is safeguarded (little electric current replenishes)--that the utility model has the advantages that: the utility model has been released new charge mode: charging, can reduce the charger that causes because of the used batteries thermal runaway and not change the lamp phenomenon, circuit is simple, with low cost, realized charger to ambient temperature, the new and old reasonable compatibility of battery.
Description of drawings
Fig. 1 is the utility model embodiment one circuit diagram.
Fig. 2 is the utility model embodiment two circuit diagrams.
Embodiment
As shown in Figure 1, a kind of electric car charger circuit, include the output port J3 that is connected to battery of electric vehicle, J4, described J3, J4 connects the output main winding N1 of switch transformer ST and the first terminal N21 of output auxiliary winding respectively, J3, be parallel with resistance R 19 between the J4, electrochemical capacitor C7 in parallel between the output main winding N1 of switch transformer ST and the output auxiliary winding the first terminal N21, export auxiliary winding the first terminal N21 and export electrochemical capacitor C8 in parallel between the auxiliary winding second terminal N22, be connected with fast recovery rectifier diode V2 on the output main winding N1 of switch transformer ST, the two ends of fast recovery rectifier diode V2 are parallel with fast recovery rectifier diode V1, also be in series with resistance R 4 and diode V8 between the first terminal N21 of switch transformer ST output auxiliary winding and the port J4, be connected with quick rectification diode V7 on the output auxiliary winding second terminal N22 of switch transformer ST, lead-out wire a is arranged and be connected with resistance R 14 in turn on the output auxiliary winding second terminal N22 of switch transformer ST, photoelectrical coupler U3 just, the output of negative pole and three terminal regulator U6 and input, described photoelectrical coupler U3 just, be parallel with resistance R 13 between the negative pole, be parallel with capacitor C 3 and resistance R 10 between the collector electrode of photoelectrical coupler U3 and the emitter respectively, be parallel with polar capacitor C9 between the output of three terminal regulator U6 and the sampling end, lead-out wire b is arranged and be connected with resistance R 15 in turn on the output main winding N1 of switch transformer ST, R16 and R24, node 1 is arranged between resistance R 16 and the R24, described node 1 connects the sampling end of three terminal regulator U6, be connected with the end of fan PS1 on the output auxiliary winding second terminal N22 of switch transformer ST, the other end of fan PS1 connects the emitter of triode Q4, be connected with resistance R 32 on the base stage in turn, the negative pole of R20 and diode D7, the negative pole connected node 1 of diode D7, be parallel with voltage stabilizing didoe D8 between the base stage of triode Q4 and the switch transformer ST output auxiliary winding second terminal N22, the collector electrode of triode Q4 connects resistance R 33, between described resistance R 32 and the R20 node 2 is arranged, node 2 connects first output of dual operational amplifier U4, be connected capacitor C 10 between first output and first inverting input, the positive supply of dual operational amplifier U4 connects the output auxiliary winding second terminal N22 of switch transformer ST, between the output auxiliary winding second terminal N22 and the positive supply node 3 is arranged, node 3 and first operational amplifier are connected with resistance R 18 and resistance R 22 in the same way between the input, resistance R 22 and first operational amplifier are connected an end of resistance R 25 in the same way between the input, the first operational amplifier reverse input end is connected with the second operational amplifier reverse input end and the centre is provided with node 4, be provided with node 5 between resistance R 4 and the diode V8, be connected resistance R 21 between node 4 and the node 5, second operational amplifier output terminal of dual operational amplifier U4 and be connected with resistance R 26 in the same way between the input, be provided with node 6 between resistance R 18 and the resistance R 22, node 6 and second operational amplifier are connected with resistance R 27 in the same way between the input, be provided with node 7 between resistance R 27 and the node 6, node 7 connects the negative pole of voltage stabilizing didoe D9, second operational amplifier input in the same way also connects an end of resistance R 23, also be provided with lead-out wire c on the output auxiliary winding second terminal N22 of switch transformer ST, lead-out wire c is divided into two-way, one the tunnel connects the positive pole of resistance R 31 and LED lamp LED1 successively, another road connects resistance R 30, the other end of resistance R 30 is divided into two-way, one the tunnel is just connecting LED lamp LED2 successively, the negative pole of negative pole and voltage stabilizing didoe D10, another road is just connecting LED lamp LED3 successively, the positive pole of negative pole and diode D6, the negative pole of diode D6 connects the output of second operational amplifier, with the emitter of lead with photoelectrical coupler U3, the input of three terminal regulator U6, resistance R 24, the negative supply of dual operational amplifier U4, resistance R 25, resistance R 23, the positive pole of voltage stabilizing didoe D9, the positive pole of voltage stabilizing didoe D10, the negative pole of LED lamp LED1 and resistance R 33 couple together and common ground, also are connected with capacitor C 11 between the input of the emitter of photoelectrical coupler U3 and three terminal regulator U6.
As shown in Figure 2, also first reverse input end of dual operational amplifier U4 can be connected with second reverse input end, resistance R 21 is connected between node 5 and first reverse input end, d on the lead-out wire is arranged and be connected with resistance R 17 in turn and resistance R 34 on the output main winding N1 of switch transformer ST, be provided with node 8 between resistance R 17 and the resistance R 34, node 8 is connected with the reverse input end of second operational amplifier.
The two ends of described resistance R 10 connect the Switching Power Supply output.
The model of described photoelectrical coupler U3 is PC817; The model of described dual operational amplifier U4 is LM358; The model of described three terminal regulator U6 is TL431.
Embodiment one: as shown in Figure 1, when being recharged cell voltage when low, the charge circuit electric current is bigger, and node 5 place's voltages are higher, 2 pin voltage ratios, the 3 pin height of dual operational amplifier U4; 1 pin presents low level; Diode D7 oppositely ends, and three terminal regulator U6 is not influenced by dual operational amplifier U4; 6 pin voltage ratios, the 5 pin height of dual operational amplifier U4,7 pin of dual operational amplifier U4 present low level, and charging indicator light LED lamp LED3 conducting glows; Along with charging voltage raises gradually, charging current descends, and the 6 pin voltages of dual operational amplifier U4 are reduced to when being lower than 5 pin voltages gradually, and 7 pin are high level, and LED lamp LED3 ends, LED lamp LED2 green light; Charger enters little electric current and safeguards additional electricity condition.Along with charging current continues to be decreased to the hundreds of MAH, the 2 pin voltages of dual operational amplifier U4 are lower than 3 pin, and 1 pin presents high level, high level is added to three terminal regulator U6 through D7, it is big that the conducting electric current of photoelectrical coupler U3 becomes, and has influence on voltage stabilizing circuit, makes charger enter floating charge state.
Embodiment two: as shown in Figure 2, when being recharged cell voltage when low, the charge circuit electric current is bigger, and node 5 place's voltages are higher, 2 pin voltage ratios, the 3 pin height of dual operational amplifier U4; 1 pin presents low level; Diode D7 oppositely ends, and three terminal regulator U6 is not influenced by dual operational amplifier U4; This moment, node 9 place's voltages were also lower, and 5 pin voltage ratios, 6 pin of dual operational amplifier U4 are low, and 7 pin of dual operational amplifier U4 present low level, and charging indicator light LED lamp LED3 conducting glows; Through charging after a while, the 5 pin voltages of dual operational amplifier U4 are increased to when being higher than 6 pin voltages gradually, and 7 pin are high level, and LED lamp LED3 ends, LED lamp LED2 green light; Charger enters safeguards additional electricity condition.Along with charging voltage raises gradually, charging current is decreased to the hundreds of MAH gradually, the 2 pin voltages of dual operational amplifier U4 are lower than 3 pin, 1 pin presents high level, high level is added to three terminal regulator U6 through diode D7, it is big that the conducting electric current of photoelectrical coupler U3 becomes, and has influence on the charger voltage stabilizing circuit, makes charger enter floating charge state.
Claims (4)
1. electric car charger circuit, it is characterized in that: include the output port J3 that is connected to battery of electric vehicle, J4, described J3, J4 connects the output main winding N1 of switch transformer ST and the first terminal N21 of output auxiliary winding respectively, J3, be parallel with resistance R 19 between the J4, electrochemical capacitor C7 in parallel between the output main winding N1 of switch transformer ST and the output auxiliary winding the first terminal N21, export auxiliary winding the first terminal N21 and export electrochemical capacitor C8 in parallel between the auxiliary winding second terminal N22, be connected with fast recovery rectifier diode V2 on the output main winding N1 of switch transformer ST, the two ends of fast recovery rectifier diode V2 are parallel with fast recovery rectifier diode V1, also be in series with resistance R 4 and diode V8 between the first terminal N21 of switch transformer ST output auxiliary winding and the port J4, be connected with quick rectification diode V7 on the output auxiliary winding second terminal N22 of switch transformer ST, lead-out wire a is arranged and be connected with resistance R 14 in turn on the output auxiliary winding second terminal N22 of switch transformer ST, photoelectrical coupler U3 just, the output of negative pole and three terminal regulator U6 and input, described photoelectrical coupler U3 just, be parallel with resistance R 13 between the negative pole, be parallel with capacitor C 3 and resistance R 10 between the collector electrode of photoelectrical coupler U3 and the emitter respectively, be parallel with polar capacitor C9 between the output of three terminal regulator U6 and the sampling end, lead-out wire b is arranged and be connected with resistance R 15 in turn on the output main winding N1 of switch transformer ST, R16 and R24, node 1 is arranged between resistance R 16 and the R24, described node 1 connects the sampling end of three terminal regulator U6, be connected with the end of fan PS1 on the output auxiliary winding second terminal N22 of switch transformer ST, the other end of fan PS1 connects the emitter of triode Q4, be connected with resistance R 32 on the base stage in turn, the negative pole of R20 and diode D7, the negative pole connected node 1 of diode D7, be parallel with voltage stabilizing didoe D8 between the base stage of triode Q4 and the switch transformer ST output auxiliary winding second terminal N22, the collector electrode of triode Q4 connects resistance R 33, between described resistance R 32 and the R20 node 2 is arranged, node 2 connects first output of dual operational amplifier U4, be connected capacitor C 10 between first output and first inverting input, the positive supply of dual operational amplifier U4 connects the output auxiliary winding second terminal N22 of switch transformer ST, between the output auxiliary winding second terminal N22 and the positive supply node 3 is arranged, node 3 and first operational amplifier are connected with resistance R 18 and resistance R 22 in the same way between the input, resistance R 22 and first operational amplifier are connected an end of resistance R 25 in the same way between the input, the first operational amplifier reverse input end is connected with the second operational amplifier reverse input end and the centre is provided with node 4, be provided with node 5 between resistance R 4 and the diode V8, be connected resistance R 21 between node 4 and the node 5, second operational amplifier output terminal of dual operational amplifier U4 and be connected with resistance R 26 in the same way between the input, be provided with node 6 between resistance R 18 and the resistance R 22, node 6 and second operational amplifier are connected with resistance R 27 in the same way between the input, be provided with node 7 between resistance R 27 and the node 6, node 7 connects the negative pole of voltage stabilizing didoe D9, second operational amplifier input in the same way also connects an end of resistance R 23, also be provided with lead-out wire c on the output auxiliary winding second terminal N22 of switch transformer ST, lead-out wire c is divided into two-way, one the tunnel connects the positive pole of resistance R 31 and LED lamp LED1 successively, another road connects resistance R 30, the other end of resistance R 30 is divided into two-way, one the tunnel is just connecting LED lamp LED2 successively, the negative pole of negative pole and voltage stabilizing didoe D10, another road is just connecting LED lamp LED3 successively, the positive pole of negative pole and diode D6, the negative pole of diode D6 connects the output of second operational amplifier, with the emitter of lead with photoelectrical coupler U3, the input of three terminal regulator U6, resistance R 24, the negative supply of dual operational amplifier U4, resistance R 25, resistance R 23, the positive pole of voltage stabilizing didoe D9, the positive pole of voltage stabilizing didoe D10, the negative pole of LED lamp LED1 and resistance R 33 couple together and common ground, also are connected with capacitor C 11 between the input of the emitter of photoelectrical coupler U3 and three terminal regulator U6.
2. electric car charger circuit according to claim 1, it is characterized in that: also first reverse input end of dual operational amplifier U4 can be connected with second reverse input end, resistance R 21 is connected between node 5 and first reverse input end, d on the lead-out wire is arranged and be connected with resistance R 17 in turn and resistance R 34 on the output main winding N1 of switch transformer ST, be provided with node 8 between resistance R 17 and the resistance R 34, node 8 is connected with the reverse input end of second operational amplifier.
3. electric car charger circuit according to claim 1 is characterized in that: the two ends connection Switching Power Supply output of described resistance R 10.
4. electric car charger circuit according to claim 1, it is characterized in that: the model of described photoelectrical coupler U3 is PC817; The model of described dual operational amplifier U4 is LM358; The model of described three terminal regulator U6 is TL431.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729130 CN203039413U (en) | 2012-12-26 | 2012-12-26 | Electric vehicle charger circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729130 CN203039413U (en) | 2012-12-26 | 2012-12-26 | Electric vehicle charger circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203039413U true CN203039413U (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220729130 Expired - Fee Related CN203039413U (en) | 2012-12-26 | 2012-12-26 | Electric vehicle charger circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN203039413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849641A (en) * | 2017-03-20 | 2017-06-13 | 常州格力博有限公司 | A kind of mu balanced circuit |
-
2012
- 2012-12-26 CN CN 201220729130 patent/CN203039413U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849641A (en) * | 2017-03-20 | 2017-06-13 | 常州格力博有限公司 | A kind of mu balanced circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20161226 |