CN204835677U - Battery charging circuit that connects in parallel - Google Patents
Battery charging circuit that connects in parallel Download PDFInfo
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- CN204835677U CN204835677U CN201520488946.7U CN201520488946U CN204835677U CN 204835677 U CN204835677 U CN 204835677U CN 201520488946 U CN201520488946 U CN 201520488946U CN 204835677 U CN204835677 U CN 204835677U
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Abstract
The utility model discloses a battery charging circuit that connects in parallel, the control device comprises a controller, controller voltage detecting end is connected with group battery voltage sampling circuit, group battery in order, the group battery positive terminal is connected with commercial power protection circuit, commercial power charge control circuit, commercial power rectifying and wave -filtering input circuit in order, rectifying and wave -filtering input circuit input and mains connection, a controller control end and commercial power charge control circuit and are connected, a controller feedback end is connected with commercial power current sampling circuit, commercial power current sampling circuit and group battery negative pole end is connected, and this circuit structure is simple, and stability well can commercial power and solar energy port ability while constant current charging, satisfies the requirement of user's quick charge.
Description
[technical field]
The present invention relates to a kind of cell parallel charging circuit.
[background technology]
At present, existing charge prepd only has by the single kind input such as commercial power charged or solar recharging charging circuit on the market, meanwhile, charge prepd on the market has civil power and solar recharging input circuit simultaneously, but civil power and solar energy can not be made to charge to charging device simultaneously.
[summary of the invention]
Instant invention overcomes the deficiency of above-mentioned technology, provide a kind of cell parallel charging circuit, this circuit structure is simple, good stability can civil power and solar energy port can constant current charge simultaneously, meet the requirement of user's quick charge.
For achieving the above object, present invention employs following technical proposal:
A kind of cell parallel charging circuit, include controller 1, described controller 1 voltage detecting end is connected with voltage sampling circuit for battery 7 in turn, battery pack 2, described battery pack 2 positive terminal is connected with civil power protective circuit 303 in turn, commercial power charged control circuit 302, commercial power rectification filtering input circuit 301, described rectifying and wave-filtering input circuit 301 input is electrically connected with city, described controller 1 one control end is connected with commercial power charged control circuit 302, described controller 1 one feedback end is connected with mains current sample circuit 4, described battery pack 2 negative pole end is connected with mains current sample circuit 3.
Described battery pack 2 positive terminal is also connected with solar energy protective circuit 503, solar charging electric control circuit 502, solar energy input circuit 501 in turn; described another control end of controller 1 is connected with solar charging electric control circuit 502; described another feedback end of controller 1 is connected with solar energy current sampling circuit 6, and described solar energy current sampling circuit 6 is connected with battery pack 2 negative pole end.
Described commercial power rectification filtering input circuit 301 includes transformer Ts and inductance L 1, described transformer Ts input is electrically connected with city, described transformer Ts mono-output respectively with diode D1 one end, resistance R1 one end connects, the described resistance R1 other end is connected with the diode D1 other end by electric capacity C5, the described diode D1 other end is connected with electrochemical capacitor C1 positive terminal, electrochemical capacitor C1 negative pole end ground connection, described another output head grounding of transformer Ts, electrochemical capacitor C2 positive terminal is connected with electrochemical capacitor C1 positive terminal, electrochemical capacitor C2 negative pole end ground connection, resistance R2 and electrochemical capacitor C2 is connected in parallel, 1. resistance R2 one end is connected with inductance L 1 pin, 2. the resistance R2 other end is connected with inductance L 1 pin, inductance L 1 pin 3. respectively with electrochemical capacitor C3 positive terminal, commercial power charged control circuit 302 connects, inductance L 1 pin 4. respectively with electrochemical capacitor C3 negative pole end, mains current sample circuit 4 connects.
Described commercial power charged control circuit 302 includes field effect transistor Q1 and inductance L 2, described field effect transistor Q1 source terminal respectively with diode D4 negative pole end, triode Q3 collector electrode, VCC holds, commercial power rectification filtering input circuit 301 connects, field effect transistor Q1 by resistance R9 respectively with triode Q3 emitter, triode Q4 collector electrode connects, field effect transistor Q1 drain electrode end respectively with diode D2 negative pole end, inductance L 2 one end connects, diode D2 positive terminal ground connection, inductance L 2 other end respectively with electrochemical capacitor C4 positive terminal, civil power protective circuit 303 connects, electrochemical capacitor C4 negative pole end ground connection, triode Q3 base stage is held by resistance R8 and VCC and is connected, triode Q4 base stage is connected with triode Q3 base stage, triode Q4 grounded emitter, triode Q5 collector electrode is connected with triode Q4 base stage, triode Q5 grounded emitter, triode Q5 base stage is respectively by resistance R11 ground connection, be connected with controller 1 by resistance R10.
Described civil power protective circuit 303 includes field effect transistor Q2 and triode Q6; described field effect transistor Q2 drain electrode end is connected with commercial power charged control circuit 302, diode D5 positive terminal respectively; described field effect transistor Q2 source terminal is connected with diode D2 negative pole end, resistance R12 one end, battery pack 2 respectively; described field effect transistor Q2 gate terminal is connected with the resistance R12 other end, triode Q6 collector electrode respectively; triode Q6 base stage respectively by resistance R13 and VCC hold connect, by electric capacity C7 ground connection, described triode Q6 grounded emitter.
Described mains current sample circuit 4 includes operational amplifier IC2A, 1. described operational amplifier IC2A pin is connected with controller 1 respectively by resistance R4, 2. be connected with its pin by resistance R5, 2. described operational amplifier IC2A pin is connected with resistance R7 one end, the resistance R7 other end is connected with commercial power rectification filtering input circuit 301 respectively, the resistance R7 other end is respectively by resistance R3 ground connection, by electric capacity C6 ground connection, described operational amplifier IC2A pin is 3. by resistance R6 ground connection, described operational amplifier IC2A pin 4. ground connection, 8. described operational amplifier IC2A pin is connected with VDD.
Compared with prior art, the invention has the beneficial effects as follows:
The utility model circuit structure is simple, and good stability, can carry out constant current charge to battery pack by civil power and solar energy port simultaneously, meet the requirement of user's quick charge.
[accompanying drawing explanation]
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model electrical block diagram.
[embodiment]
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing:
A kind of cell parallel charging circuit as shown in Figure 1, it is characterized in that: include controller 1, described controller 1 voltage detecting end is connected with voltage sampling circuit for battery 7 in turn, battery pack 2, described battery pack 2 positive terminal is connected with civil power protective circuit 303 in turn, commercial power charged control circuit 302, commercial power rectification filtering input circuit 301, described rectifying and wave-filtering input circuit 301 input is electrically connected with city, described controller 1 one control end is connected with commercial power charged control circuit 302, described controller 1 one feedback end is connected with mains current sample circuit 4, described battery pack 2 negative pole end is connected with mains current sample circuit 3.
Described battery pack 2 positive terminal is also connected with solar energy protective circuit 503, solar charging electric control circuit 502, solar energy input circuit 501 in turn; described another control end of controller 1 is connected with solar charging electric control circuit 502; described another feedback end of controller 1 is connected with solar energy current sampling circuit 6, and described solar energy current sampling circuit 6 is connected with battery pack 2 negative pole end.
As shown in Figure 2, described commercial power rectification filtering input circuit 301 includes transformer Ts and inductance L 1, described transformer Ts input is electrically connected with city, described transformer Ts mono-output respectively with diode D1 one end, resistance R1 one end connects, the described resistance R1 other end is connected with the diode D1 other end by electric capacity C5, the described diode D1 other end is connected with electrochemical capacitor C1 positive terminal, electrochemical capacitor C1 negative pole end ground connection, described another output head grounding of transformer Ts, electrochemical capacitor C2 positive terminal is connected with electrochemical capacitor C1 positive terminal, electrochemical capacitor C2 negative pole end ground connection, resistance R2 and electrochemical capacitor C2 is connected in parallel, 1. resistance R2 one end is connected with inductance L 1 pin, 2. the resistance R2 other end is connected with inductance L 1 pin, inductance L 1 pin 3. respectively with electrochemical capacitor C3 positive terminal, commercial power charged control circuit 302 connects, inductance L 1 pin 4. respectively with electrochemical capacitor C3 negative pole end, mains current sample circuit 4 connects.
Described commercial power charged control circuit 302 includes field effect transistor Q1 and inductance L 2, described field effect transistor Q1 source terminal respectively with diode D4 negative pole end, triode Q3 collector electrode, VCC holds, commercial power rectification filtering input circuit 301 connects, field effect transistor Q1 by resistance R9 respectively with triode Q3 emitter, triode Q4 collector electrode connects, field effect transistor Q1 drain electrode end respectively with diode D2 negative pole end, inductance L 2 one end connects, diode D2 positive terminal ground connection, inductance L 2 other end respectively with electrochemical capacitor C4 positive terminal, civil power protective circuit 303 connects, electrochemical capacitor C4 negative pole end ground connection, triode Q3 base stage is held by resistance R8 and VCC and is connected, triode Q4 base stage is connected with triode Q3 base stage, triode Q4 grounded emitter, triode Q5 collector electrode is connected with triode Q4 base stage, triode Q5 grounded emitter, triode Q5 base stage is respectively by resistance R11 ground connection, be connected with controller 1 by resistance R10.
Described civil power protective circuit 303 includes field effect transistor Q2 and triode Q6; described field effect transistor Q2 drain electrode end is connected with commercial power charged control circuit 302, diode D5 positive terminal respectively; described field effect transistor Q2 source terminal is connected with diode D2 negative pole end, resistance R12 one end, battery pack 2 respectively; described field effect transistor Q2 gate terminal is connected with the resistance R12 other end, triode Q6 collector electrode respectively; triode Q6 base stage respectively by resistance R13 and VCC hold connect, by electric capacity C7 ground connection, described triode Q6 grounded emitter.
Described mains current sample circuit 4 includes operational amplifier IC2A, 1. described operational amplifier IC2A pin is connected with controller 1 respectively by resistance R4, 2. be connected with its pin by resistance R5, 2. described operational amplifier IC2A pin is connected with resistance R7 one end, the resistance R7 other end is connected with commercial power rectification filtering input circuit 301 respectively, the resistance R7 other end is respectively by resistance R3 ground connection, by electric capacity C6 ground connection, described operational amplifier IC2A pin is 3. by resistance R6 ground connection, described operational amplifier IC2A pin 4. ground connection, 8. described operational amplifier IC2A pin is connected with VDD.
Operation principle is as follows:
As shown in Figure 2, commercial power charged is the same with the operation principle of solar recharging, operation principle description is carried out by commercial power charged, when accessing battery pack 2, resistance R14 in voltage sampling circuit for battery 7, resistance R15 divide the BT-ADCPU port being depressed into controller 1, and the chip internal of controller 1 detects battery pack 2 voltage.
When battery pack 2 there is not electricity, it is maximum that the CH1-PWM port of controller 1 exports high PWM duty ratio, triode Q5 conducting in commercial power charged control circuit 302, triode Q4 conducting, triode Q3 ends, field effect transistor Q1 conducting, charge to battery pack 2, current sample is carried out by the resistance R3 of mains current sample circuit 4, the link voltage of resistance R3 and resistance R7 is negative, the pin of operational amplifier IC2A is 2. for time negative, 1. its pin is just, voltage reversal, controller 1 detection calculations amplifier IC2A pin output current 1., when electric current is greater than set point, the duty ratio that controller 1 control CH1-PWM port exports reduces, triode Q5 ON time in commercial power charged control circuit 302 is declined, triode Q4 ON time also declines, field effect transistor Q1 ON time and then declines, electric current is caused to decline, when controller 1 detects that operational amplifier IC2A pin output current 1. drops to certain value, the duty ratio that controller 1 control CH1-PWM port exports increases, triode Q5 ON time rises, triode Q4 ON time also rises, field effect transistor Q1 ON time and then rises, electric current is caused to rise, periodic duty, ensure current constant.
Simultaneously, because the earth terminal of operational amplifier IC2A earth terminal, resistance R3 and battery pack 2 in mains current sample circuit 4 is interconnected, therefore, detecting electric current is the survey battery pack 2 negative pole end electric current examined by detecting resistance R3, and the ground connection namely often organizing charge power supply is separated.
Field effect transistor Q2 and the triode Q6 of commercial power charged circuit 3 are protective circuits, have the anti-charging protection function in reverse connecting protection and battery pack 2 voltage.
Claims (6)
1. a cell parallel charging circuit, it is characterized in that: include controller (1), described controller (1) voltage detecting end is connected with voltage sampling circuit for battery (7) in turn, battery pack (2), described battery pack (2) positive terminal is connected with civil power protective circuit (303) in turn, commercial power charged control circuit (302), commercial power rectification filtering input circuit (301), described rectifying and wave-filtering input circuit (301) input is electrically connected with city, described controller (1) control end is connected with commercial power charged control circuit (302), described controller (1) feedback end is connected with mains current sample circuit (4), described battery pack (2) negative pole end is connected with mains current sample circuit (4).
2. a kind of cell parallel charging circuit according to claim 1; it is characterized in that: described battery pack (2) positive terminal is also connected with solar energy protective circuit (503), solar charging electric control circuit (502), solar energy input circuit (501) in turn; described controller (1) another control end is connected with solar charging electric control circuit (502); described controller (1) another feedback end is connected with solar energy current sampling circuit (6), and described solar energy current sampling circuit (6) is connected with battery pack (2) negative pole end.
3. a kind of cell parallel charging circuit according to claim 1, it is characterized in that: described commercial power rectification filtering input circuit (301) includes transformer Ts and inductance L 1, described transformer Ts input is electrically connected with city, described transformer Ts mono-output respectively with diode D1 one end, resistance R1 one end connects, the described resistance R1 other end is connected with the diode D1 other end by electric capacity C5, the described diode D1 other end is connected with electrochemical capacitor C1 positive terminal, electrochemical capacitor C1 negative pole end ground connection, described another output head grounding of transformer Ts, electrochemical capacitor C2 positive terminal is connected with electrochemical capacitor C1 positive terminal, electrochemical capacitor C2 negative pole end ground connection, resistance R2 and electrochemical capacitor C2 is connected in parallel, 1. resistance R2 one end is connected with inductance L 1 pin, 2. the resistance R2 other end is connected with inductance L 1 pin, inductance L 1 pin 3. respectively with electrochemical capacitor C3 positive terminal, commercial power charged control circuit (302) connects, inductance L 1 pin 4. respectively with electrochemical capacitor C3 negative pole end, mains current sample circuit (4) connects.
4. a kind of cell parallel charging circuit according to claim 1, it is characterized in that: described commercial power charged control circuit (302) includes field effect transistor Q1 and inductance L 2, described field effect transistor Q1 source terminal respectively with diode D4 negative pole end, triode Q3 collector electrode, VCC holds, commercial power rectification filtering input circuit (301) connects, field effect transistor Q1 by resistance R9 respectively with triode Q3 emitter, triode Q4 collector electrode connects, field effect transistor Q1 drain electrode end respectively with diode D2 negative pole end, inductance L 2 one end connects, diode D2 positive terminal ground connection, inductance L 2 other end respectively with electrochemical capacitor C4 positive terminal, civil power protective circuit (303) connects, electrochemical capacitor C4 negative pole end ground connection, triode Q3 base stage is held by resistance R8 and VCC and is connected, triode Q4 base stage is connected with triode Q3 base stage, triode Q4 grounded emitter, triode Q5 collector electrode is connected with triode Q4 base stage, triode Q5 grounded emitter, triode Q5 base stage is respectively by resistance R11 ground connection, be connected with controller (1) by resistance R10.
5. a kind of cell parallel charging circuit according to claim 1, it is characterized in that: described civil power protective circuit (303) includes field effect transistor Q2 and triode Q6, described field effect transistor Q2 drain electrode end respectively with commercial power charged control circuit (302), diode D5 positive terminal connects, described field effect transistor Q2 source terminal respectively with diode D2 negative pole end, resistance R12 one end, battery pack (2) connects, described field effect transistor Q2 gate terminal respectively with the resistance R12 other end, triode Q6 collector electrode connects, triode Q6 base stage is held respectively by resistance R13 and VCC and is connected, by electric capacity C7 ground connection, described triode Q6 grounded emitter.
6. a kind of cell parallel charging circuit according to claim 1, it is characterized in that: described mains current sample circuit (4) includes operational amplifier IC2A, 1. described operational amplifier IC2A pin is connected with controller (1) respectively by resistance R4, 2. be connected with its pin by resistance R5, 2. described operational amplifier IC2A pin is connected with resistance R7 one end, the resistance R7 other end is connected with commercial power rectification filtering input circuit (301) respectively, the resistance R7 other end is respectively by resistance R3 ground connection, by electric capacity C6 ground connection, described operational amplifier IC2A pin is 3. by resistance R6 ground connection, described operational amplifier IC2A pin 4. ground connection, 8. described operational amplifier IC2A pin is connected with VDD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520488946.7U CN204835677U (en) | 2015-07-07 | 2015-07-07 | Battery charging circuit that connects in parallel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520488946.7U CN204835677U (en) | 2015-07-07 | 2015-07-07 | Battery charging circuit that connects in parallel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204835677U true CN204835677U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520488946.7U Expired - Fee Related CN204835677U (en) | 2015-07-07 | 2015-07-07 | Battery charging circuit that connects in parallel |
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| Country | Link |
|---|---|
| CN (1) | CN204835677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181307A (en) * | 2017-06-14 | 2017-09-19 | 深圳市全智芯科技有限公司 | Battery multi-source charge protector |
-
2015
- 2015-07-07 CN CN201520488946.7U patent/CN204835677U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181307A (en) * | 2017-06-14 | 2017-09-19 | 深圳市全智芯科技有限公司 | Battery multi-source charge protector |
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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: 20151202 Termination date: 20190707 |