CN205304347U - Intelligence constant current charging circuit - Google Patents
Intelligence constant current charging circuit Download PDFInfo
- Publication number
- CN205304347U CN205304347U CN201620026108.2U CN201620026108U CN205304347U CN 205304347 U CN205304347 U CN 205304347U CN 201620026108 U CN201620026108 U CN 201620026108U CN 205304347 U CN205304347 U CN 205304347U
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- diode
- triode
- negative pole
- capacitor
- charging circuit
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an intelligence constant current charging circuit, including potentiometre RP1, resistance R1, electric capacity C1, diode D1, diode D2 and triode VT1, the diode D1 positive pole VCC that connects respectively, emitting diode LED is anodal, electric capacity C1 and resistance R1, potentiometre RP1 one end is connected to diode D1 negative pole, it is anodal that diode D2 is connected to the potentiometre RP1 other end, electric capacity C2 and triode VT1 base are connected respectively to potentiometre RP1 gleitbretter, the emitting diode LED negative pole is connected respectively to triode VT1 collecting electrode, the electric capacity C1 other end and triode VT2 base, the triode VT2 projecting pole connecting resistance R1 other end. The utility model discloses intelligence constant current charging circuit adopts the triode as controlling element, and circuit structure is simple, and is with low costs, small, does not use any chip element moreover, and stability is high, the application scope guangZhou.
Description
Technical field
The utility model relates to a kind of charging circuit, specifically a kind of Intelligent constant flow charging circuit.
Background technology
Battery is energy storage electronic equipment common in daily life, well-known, and battery needs to fill being finished after electricityElectricity, most charger is all that constant current flings type in the market, the voltage constant of its charging can be along with battery fillsElectricity process and change, more cannot realize automatically stop charging, be therefore easy to cause the overshoot of battery. How intelligent,The charging modes of safety is the emphasis that people study.
Existing a lot of charging intelligent controller all adopts the controller of voltage comparator as charging automatic stop, but uses relativelyDevice can cause the volume of charger larger, is very disadvantageous for present miniaturization, how to reduce volume and ensures chargingSafety is the direction of research in industry.
Utility model content
The purpose of this utility model is to provide a kind of Intelligent constant flow charging circuit, to solve asking of proposing in above-mentioned background technologyTopic.
For achieving the above object, the utility model provides following technical scheme:
A kind of Intelligent constant flow charging circuit, comprises potentiometer RP1, resistance R 1, capacitor C 1, diode D1, diode D2With triode VT1, described diode D1 positive pole connects respectively power supply VCC, LED positive pole, capacitor C 1 andResistance R 1, diode D1 negative pole connects potentiometer RP1 one end, and the potentiometer RP1 other end connects diode D2 positive pole, electricityPosition device RP1 slide plate connects respectively capacitor C 2 and triode VT1 base stage, and triode VT1 colelctor electrode connects respectively light-emitting diodesPipe LED negative pole, capacitor C 1 other end and triode VT2 base stage, the triode VT2 emitter stage contact resistance R1 other end,Triode VT2 colelctor electrode connects respectively diode D3 negative pole and diode D4 positive pole, the anodal connecting triode of diode D3VT1 emitter stage, diode D4 negative pole connects battery E positive pole, battery E negative pole connect respectively diode D2 negative pole andCapacitor C 2 other ends.
As further scheme of the utility model: described diode D3 is commutation diode.
Compared with prior art, the beneficial effects of the utility model are: the utility model Intelligent constant flow charging circuit adopts three utmost pointsPipe is as control element, and circuit structure is simple, and cost is low, and volume is little, and does not use any chip component, stabilityHeight, applied widely.
Brief description of the drawings
Fig. 1 is the circuit diagram of Intelligent constant flow charging circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clearlyChu, intactly description, obviously, described embodiment is only the utility model part embodiment, instead of wholeEmbodiment. Based on the embodiment in the utility model, those of ordinary skill in the art are not making under creative work prerequisiteThe every other embodiment obtaining, belongs to the scope that the utility model is protected.
Refer to Fig. 1, in the utility model embodiment, a kind of Intelligent constant flow charging circuit, comprises potentiometer RP1, resistanceR1, capacitor C 1, diode D1, diode D2 and triode VT1, described diode D1 positive pole connect respectively power supply VCC,LED positive pole, capacitor C 1 and resistance R 1, diode D1 negative pole connects potentiometer RP1 one end, potentiometerThe RP1 other end connects diode D2 positive pole, and potentiometer RP1 slide plate connects respectively capacitor C 2 and triode VT1 base stage, threeUtmost point pipe VT1 colelctor electrode is connecting luminous diode LED negative pole, capacitor C 1 other end and triode VT2 base stage respectively, three utmost pointsThe pipe VT2 emitter stage contact resistance R1 other end, triode VT2 colelctor electrode connects respectively diode D3 negative pole and diode D4Positive pole, the anodal connecting triode VT1 of diode D3 emitter stage, diode D4 negative pole connects battery E positive pole, batteryE negative pole connects respectively diode D2 negative pole and capacitor C 2 other ends; Described diode D3 is commutation diode.
Operation principle of the present utility model is: refer to Fig. 1, when charging starts, battery E voltage is lower, VT1 base stageCurrent potential is higher, causes current regulator diode D3 conducting, produces a constant collector current Ic1 flow through LED by VT1, makesLED is luminous, and the about 1.5V of its forward voltage drop, for VT2 provides a stable base potential, so one of VT2 generation is constantCollector current Ic2, now Ic1, Ic2 form charging current jointly to battery E charging, when battery E voltage literHigh during to predetermined value (this value is determined by potentiometer RP1), VT1 ends, and circuit stops battery E to charge.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned example embodiment, Er QieDo not deviate from the situation of spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, this practicality is newThe scope of type is limited by claims instead of above-mentioned explanation, is therefore intended to be equal to containing of important document by what drop on claimAll changes in justice and scope are included in the utility model. Any Reference numeral in claim should be considered as to restrictionRelated claim.
In addition although should be appreciated that this description is described according to embodiment, be not that each embodiment only comprises,A technical scheme independently, this narrating mode of description is only for clarity sake, those skilled in the art should be byDescription is done as a whole, and the technical scheme in each embodiment also can be through appropriately combined, and forming those skilled in the art canWith other embodiments of understanding.
Claims (2)
1. an Intelligent constant flow charging circuit, comprises potentiometer RP1, resistance R 1, capacitor C 1, diode D1, diodeD2 and triode VT1, is characterized in that, described diode D1 positive pole is just connecting respectively power supply VCC, LEDThe utmost point, capacitor C 1 and resistance R 1, diode D1 negative pole connects potentiometer RP1 one end, and the potentiometer RP1 other end connects two utmost pointsPipe D2 positive pole, potentiometer RP1 slide plate connects respectively capacitor C 2 and triode VT1 base stage, and triode VT1 colelctor electrode is respectivelyConnecting luminous diode LED negative pole, capacitor C 1 other end and triode VT2 base stage, triode VT2 emitter stage connects electricityThe resistance R1 other end, triode VT2 colelctor electrode connects respectively diode D3 negative pole and diode D4 positive pole, and diode D3 is justUtmost point connecting triode VT1 emitter stage, diode D4 negative pole connects battery E positive pole, and battery E negative pole connects respectively twoUtmost point pipe D2 negative pole and capacitor C 2 other ends.
2. a kind of Intelligent constant flow charging circuit according to claim 1, is characterized in that, described diode D3 is wholeStream diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620026108.2U CN205304347U (en) | 2016-01-12 | 2016-01-12 | Intelligence constant current charging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620026108.2U CN205304347U (en) | 2016-01-12 | 2016-01-12 | Intelligence constant current charging circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205304347U true CN205304347U (en) | 2016-06-08 |
Family
ID=56474933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620026108.2U Expired - Fee Related CN205304347U (en) | 2016-01-12 | 2016-01-12 | Intelligence constant current charging circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205304347U (en) |
-
2016
- 2016-01-12 CN CN201620026108.2U patent/CN205304347U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20160608 Termination date: 20170112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |