CN102957195A - Battery charge controlling circuit - Google Patents
Battery charge controlling circuit Download PDFInfo
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- CN102957195A CN102957195A CN2012105107631A CN201210510763A CN102957195A CN 102957195 A CN102957195 A CN 102957195A CN 2012105107631 A CN2012105107631 A CN 2012105107631A CN 201210510763 A CN201210510763 A CN 201210510763A CN 102957195 A CN102957195 A CN 102957195A
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Abstract
The invention discloses a battery charge controlling circuit. The existing battery charge controlling circuit is complex and is of high in cost and has relatively large power consumption. The battery charge controlling circuit comprises a charge input end and a battery, wherein the charge input end is respectively connected with the battery through a charge indication circuit and a voltage stabilization circuit, and a constant current circuit is connected withbetween the voltage stabilization circuit and the battery in parallel. Under the action of the voltage stabilization circuit and the constant current circuit, the stable voltage and constant current charge of the battery can be realized, and the charge indication circuit can indicate that the battery is fully charged; and the battery charge controlling circuit disclosed by the invention has the advantages of simple circuit, low cost and low power consumption.
Description
Technical field
The present invention relates to power circuit, specifically refer to a kind of battery charge control circuit.
Background technology
In the electronic digital series products; what the energy was provided all is the battery that can discharge and recharge; in order to protect battery; in the process of charging to battery again; need to there be control circuit to control; so existing control circuit such as application number are 200620017043.1 the disclosed battery charger of Chinese patent; it comprises voltage changer and constant-voltage control circuit; As time goes on described voltage changer can and constantly increase the charging voltage of output with a certain initial set value output charging voltage; when the charging voltage of output reaches the charging voltage of setting, by the constant charging voltage of described constant-voltage control circuit control voltage changer output.Also be provided with simultaneously the Timer Controlling charging interval, be provided with the output current that current detection circuit detects voltage changer.Above-mentioned control circuit can be controlled the charging process of battery, but circuit is comparatively complicated, and cost is also higher, and power consumption is relatively also larger.
Summary of the invention
The invention provides a kind of battery charge control circuit, can show the charging of the pressure-stabilizing constant flow of battery, and can the pilot cell full state, circuit is simple, and power consumption is few.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of battery charge control circuit, comprise charging input end and battery, described charging input end has been connected battery through charging indication with voltage stabilizing circuit respectively, between described voltage stabilizing circuit and the battery and connect constant-current circuit.Under the effect of voltage stabilizing circuit and constant-current circuit, can carry out to battery the charging of pressure-stabilizing constant flow, charging indication can be pointed out when battery is filled and is full of simultaneously.
As preferably, described charging indication comprises a PNP triode I and a light-emitting diode, the emitter of described PNP triode I connects the positive pole of described charging input end, the base stage of described PNP triode I is connected and is connected the positive pole of described charging input end behind the dropping resistor, connect described anode after the described light-emitting diode of collector series connection of described PNP triode I, described dropping resistor connects described voltage stabilizing circuit.When beginning to charge, the conducting of PNP triode I, light-emitting diode is lighted, along with the voltage on the battery constantly rises, constantly reduces through the electric current on the dropping resistor, after battery is filled, the cut-off of PNP triode I, light-emitting diode extinguishes, and indicating battery is full of.
As preferably, connect a resistance I between the collector electrode of described PNP triode I and the described light-emitting diode positive pole, the resistance I plays the current-limiting protection effect.
As preferably, be connected in series a resistance II between the base stage of described PNP triode I and the described dropping resistor, the resistance II plays the current-limiting protection effect.
As preferably, described voltage stabilizing circuit is adjustable voltage stabilizing circuit, comprise a three-terminal voltage-stabilizing pipe and a NPN triode, described NPN transistor collector connects described charging input end positive pole after being connected in series described dropping resistor, described NPN transistor base connects afterwards ground connection of described three-terminal voltage-stabilizing pipe, serial connection one resistance III between described NPN transistor collector and the base stage, the emitter of described NPN triode connects described constant-current circuit.In the charging process, the NPN triode keeps conducting, and three-terminal voltage-stabilizing pipe output voltage is adjustable, can adjust according to actual needs the charging voltage to battery, can guarantee the battery voltage stabilizing is charged simultaneously.
As preferably, described constant-current circuit is the adjustable constant-flow circuit, comprise a PNP triode II and an adjustable resistance, described PNP triode II emitter connects the emitter of described NPN triode, the base stage of the described PNP triode II ground connection after the described adjustable resistance of connecting, described PNP triode II collector electrode connects described anode.
As preferably, described adjustable resistance is connected in series ground connection after the resistance IV, and the resistance IV plays the current-limiting protection effect.
As preferably, described NPN triode and described PNP triode II are provided with fin.
After adopting technique scheme, the present invention has following advantage: under the effect of voltage stabilizing circuit and constant-current circuit, can realize battery is carried out the charging of pressure-stabilizing constant flow, charging indication can be pointed out when battery is filled and is full of simultaneously; Main electronic component has only comprised three triodes and a three-terminal voltage-stabilizing pipe, and circuit is simple, and cost is lower, and power consumption is lower.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further:
Fig. 1 is the theory diagram of a kind of battery charge control circuit of the present invention;
Fig. 2 is concrete circuit connection diagram of the present invention.
Embodiment
Referring to Fig. 1, a kind of battery charge control circuit comprises charging input end and battery 1, and described charging input end is connected with voltage stabilizing circuit through charging indication 2 respectively and has been connected battery 1, between described voltage stabilizing circuit 3 and the battery and connect constant-current circuit 4.Under the effect of voltage stabilizing circuit 3 and constant-current circuit 4, can realize battery 1 is carried out the charging of pressure-stabilizing constant flow, charging indication 2 can be pointed out when battery 1 is filled and is full of simultaneously.
Referring to Fig. 2; described charging indication 2 comprises a PNP triode I Q1 and a light-emitting diode D1; the emitter of described PNP triode I Q1 connects the positive pole of described charging input end; the base stage of described PNP triode I Q1 is connected and is connected the positive pole of described charging input end behind the dropping resistor R1, and serial connection one plays the resistance II R3 of current-limiting protection effect between the base stage of described PNP triode I Q1 and the described dropping resistor R1.Connect described battery 1 positive pole after the described light-emitting diode D1 of collector series connection of described PNP triode I Q1, connect the resistance I R2 of current-limiting protection effect between the collector electrode of described PNP triode I Q1 and the described light-emitting diode D1 positive pole.Described dropping resistor R1 connects described voltage stabilizing circuit.
Described voltage stabilizing circuit 2 is adjustable voltage stabilizing circuit, comprise a three-terminal voltage-stabilizing pipe T1 and a NPN triode Q2, connect described charging input end after the described dropping resistor R1 of described NPN triode Q2 collector series connection anodal, described NPN triode Q2 base stage connects afterwards ground connection of described three-terminal voltage-stabilizing pipe T1, serial connection one resistance III R4 between described NPN triode Q2 collector electrode and the base stage, the emitter of described NPN triode Q2 connects described constant-current circuit 4.
Described constant-current circuit 4 is adjustable constant-flow circuit; comprise a PNP triode II Q3 and an adjustable resistance R5; described PNP triode II Q3 emitter connects the emitter of described NPN triode Q2; the base stage of the described PNP triode II Q3 ground connection after the described adjustable resistance R5 of connecting, described adjustable resistance R5 serial connection one are played ground connection behind the resistance IV R6 of current-limiting protection effect.Described PNP triode II Q3 collector electrode connects described battery 1 positive pole, regulates adjustable resistance R5 the constant current charge electric current can be provided as required.
When beginning to charge, PNP triode I Q1 conducting, light-emitting diode D1 lights, along with the voltage on the battery 1 constantly rises, constantly reduce through the electric current on the dropping resistor R1, after battery 1 is filled, PNP triode I Q1 cut-off, light-emitting diode D1 extinguishes, and indicating battery 1 is full of.In the charging process, NPN triode Q2 keeps conducting, and three-terminal voltage-stabilizing pipe T1 output voltage is adjustable, can adjust according to actual needs the charging voltage to battery 1, can guarantee battery 1 voltage stabilizing is charged simultaneously.
Described NPN triode (Q2) and described PNP triode II (Q3) are provided with fin, and fin guarantees the circuit steady operation.
Claims (8)
1. battery charge control circuit, comprise charging input end and battery (1), it is characterized in that: described charging input end is connected 3 through charging indication (2) with voltage stabilizing circuit respectively) connected battery (1), between described voltage stabilizing circuit (3) and the battery and connect constant-current circuit (4).
2. battery charge control circuit according to claim 1, it is characterized in that: described charging indication (2) comprises a PNP triode I (Q1) and a light-emitting diode (D1), the emitter of described PNP triode I (Q1) connects the positive pole of described charging input end, the base stage of described PNP triode I (Q1) is connected and is connected the positive pole of described charging input end behind the dropping resistor (R1), the described light-emitting diode of collector series connection (D1) of described PNP triode I (Q1) connects described battery (1) positive pole afterwards, and described dropping resistor (R1) connects described voltage stabilizing circuit.
3. battery charge control circuit according to claim 2 is characterized in that: connect a resistance I (R2) between the collector electrode of described PNP triode I (Q1) and described light-emitting diode (D1) positive pole.
4. battery charge control circuit according to claim 2 is characterized in that: serial connection one resistance II (R3) between the base stage of described PNP triode I (Q1) and the described dropping resistor (R1).
5. battery charge control circuit according to claim 2, it is characterized in that: described voltage stabilizing circuit (2) is adjustable voltage stabilizing circuit, comprise a three-terminal voltage-stabilizing pipe (T1) and a NPN triode (Q2), it is anodal that the described dropping resistor of described NPN triode (Q2) collector series connection (R1) connects described charging input end afterwards, described NPN triode (Q2) base stage connects afterwards ground connection of described three-terminal voltage-stabilizing pipe (T1), serial connection one resistance III (R4) between described NPN triode (Q2) collector electrode and the base stage, the emitter of described NPN triode (Q2) connects described constant-current circuit (4).
6. battery charge control circuit according to claim 5, it is characterized in that: described constant-current circuit (4) is the adjustable constant-flow circuit, comprise a PNP triode II (Q3) and an adjustable resistance (R5), described PNP triode II (Q3) emitter connects the emitter of described NPN triode (Q2), the base stage of described PNP triode II (Q3) the afterwards ground connection of described adjustable resistance (R5) of connecting, described PNP triode II (Q3) collector electrode connects described battery (1) positive pole.
7. battery charge control circuit according to claim 6 is characterized in that: ground connection after described adjustable resistance (R5) the serial connection one resistance IV (R6).
8. battery charge control circuit according to claim 6, it is characterized in that: described NPN triode (Q2) and described PNP triode II (Q3) are provided with fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210510763.1A CN102957195B (en) | 2012-11-30 | 2012-11-30 | Battery charge controlling circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210510763.1A CN102957195B (en) | 2012-11-30 | 2012-11-30 | Battery charge controlling circuit |
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| Publication Number | Publication Date |
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| CN102957195A true CN102957195A (en) | 2013-03-06 |
| CN102957195B CN102957195B (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210510763.1A Active CN102957195B (en) | 2012-11-30 | 2012-11-30 | Battery charge controlling circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269902A (en) * | 2014-10-13 | 2015-01-07 | 成都锐奕信息技术有限公司 | Lithium battery charging circuit capable of fast and stably conducting charging |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88211445U (en) * | 1988-02-15 | 1988-12-28 | 王宙龙 | Safety charger for crome-nickel cell |
| CN2193616Y (en) * | 1994-05-24 | 1995-03-29 | 魏展生 | Automatic charger with voltage stablizing output |
| CN2439762Y (en) * | 2000-07-13 | 2001-07-18 | 王占明 | DC charging and illumination device |
| US20100171469A1 (en) * | 2009-01-07 | 2010-07-08 | Ho-Jung Ju | Charging Circuit Having Smooth Charging Transition Mode |
| CN202906543U (en) * | 2012-11-30 | 2013-04-24 | 费新华 | Battery charging control circuit |
-
2012
- 2012-11-30 CN CN201210510763.1A patent/CN102957195B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88211445U (en) * | 1988-02-15 | 1988-12-28 | 王宙龙 | Safety charger for crome-nickel cell |
| CN2193616Y (en) * | 1994-05-24 | 1995-03-29 | 魏展生 | Automatic charger with voltage stablizing output |
| CN2439762Y (en) * | 2000-07-13 | 2001-07-18 | 王占明 | DC charging and illumination device |
| US20100171469A1 (en) * | 2009-01-07 | 2010-07-08 | Ho-Jung Ju | Charging Circuit Having Smooth Charging Transition Mode |
| CN202906543U (en) * | 2012-11-30 | 2013-04-24 | 费新华 | Battery charging control circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269902A (en) * | 2014-10-13 | 2015-01-07 | 成都锐奕信息技术有限公司 | Lithium battery charging circuit capable of fast and stably conducting charging |
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| Publication number | Publication date |
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| CN102957195B (en) | 2015-05-20 |
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Effective date of registration: 20150324 Address after: Hangzhou City, Zhejiang province 310000 395 South Applicant after: Xiao Zhenlin Address before: 313100, Huzhou, Zhejiang, Changxing County town of oasis Campanula phase 16, 301 Applicant before: Fei Xinhua |
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Owner name: LISHUI POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG Free format text: FORMER OWNER: XIAO ZHENLIN Effective date: 20150415 Owner name: LISHUI POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG Effective date: 20150415 |
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Inventor after: Zhang Hanbing Inventor after: Chen Xiaochun Inventor after: Wang Yaofei Inventor after: Wang Lina Inventor after: Zhang Sheng Inventor after: Hu Zhihong Inventor before: Fei Xinhua |
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Effective date of registration: 20150415 Address after: 323000 No. 19 lighthouse street, Xiacheng District, Zhejiang, Lishui Applicant after: Lishui Power Supply Company of State Grid Zhejiang Power Supply Company Applicant after: Electric company of Guo Wang Jinyun county, Zhejiang province county Address before: Hangzhou City, Zhejiang province 310000 395 South Applicant before: Xiao Zhenlin |
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