CN205051415U - Lithium battery charging circuit - Google Patents
Lithium battery charging circuit Download PDFInfo
- Publication number
- CN205051415U CN205051415U CN201520851037.5U CN201520851037U CN205051415U CN 205051415 U CN205051415 U CN 205051415U CN 201520851037 U CN201520851037 U CN 201520851037U CN 205051415 U CN205051415 U CN 205051415U
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- China
- Prior art keywords
- diode
- electric capacity
- resistance
- transformer
- triode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 22
- 238000004804 winding Methods 0.000 claims abstract description 24
- 230000001052 transient effect Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a lithium battery charging circuit, including diode D1, triode V1, transformer W and resistance R2, the 220V alternating current is connected to diode D1's positive pole, and electric capacity C1, electric capacity C2, resistance R1, resistance R2 and transformer W's winding N1 is connected to diode D1's negative pole, and electric capacity C3, resistance R4, triode V2's projecting pole, the other end of 220V alternating current and transformer W's winding N2 are connected to electric capacity C1's the other end. The utility model discloses lithium battery charging circuit has abandoned complicated chip structure, only uses essential electronic component to constitute, has simplified circuit structure, has reduced the cost of manufacture, has increased the overcurrent protection module on ordinary power switching over's basis, and the circuit still has the steady voltage performance simultaneously, has consequently that the function is various, the cost of manufacture low and the advantage of stable performance.
Description
Technical field
The utility model relates to a kind of lithium battery circuit, specifically a kind of lithium battery charging circuit.
Background technology
Lithium battery is because have the little advantage of long service life, stable performance and volume, be widely used in the mobile device such as mobile phone, panel computer as energy-storage travelling wave tube, but the most function singleness of its charger, the function of charger directly determines the useful life of lithium battery, the most price of intelligent charger is in the market high, and cheap charger only has simple voltage conversion function, be easy to the overshoot phenomenon causing lithium battery, affect its useful life.
Utility model content
The purpose of this utility model is the lithium battery charging circuit providing a kind of structure simple, easy to use, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of lithium battery charging circuit, comprise diode D1, triode V1, transformer W and resistance R2, the anode of described diode D1 connects 220V alternating current, the negative electrode of diode D1 connects electric capacity C1, electric capacity C2, resistance R1, the winding N1 of resistance R2 and transformer W, the other end of electric capacity C1 connects electric capacity C3, resistance R4, the emitter of triode V2, the other end of 220V alternating current and the winding N2 of transformer W, the other end of electric capacity C3 connects the anode of diode D3 and the anode of diode D4, the negative electrode contact resistance R1 of diode D3, resistance R3, the base stage of triode V1 and the collector electrode of triode V2, the other end of resistance R3 connects electric capacity C4, the other end of electric capacity C4 connects the other end of the negative electrode of diode D4 and the winding N2 of transformer W, the other end of other end contact resistance R2 of electric capacity C2 and the negative electrode of diode D2, the collector electrode of anode connecting triode V1 of diode D2 and the other end of the winding N1 of transformer W, the base stage of triode V2 connects the negative electrode of diode D5, the other end of anode contact resistance R4 of diode D5 and the emitter of triode V1, one end of the winding N3 of transformer W connects the anode of diode D6, the negative electrode of diode D6 connects electric capacity C5, resistance R5, the positive pole of lithium battery E and transient voltage suppressor diode DW, the other end of the winding N3 of transformer W connects the other end of electric capacity C5, the negative electrode of diode D7, the negative pole of lithium battery E and the other end of transient voltage suppressor diode DW, the other end of the anode contact resistance R5 of diode D7.
As preferred version of the present utility model: described diode D7 is light-emitting diode.
Compared with prior art; the beneficial effects of the utility model are: the utility model lithium battery charging circuit has abandoned complicated chip structure; only use basic electronic component composition; simplify circuit structure; reduce cost of manufacture; the basis of common power conversion adds overcurrent protection module, and simultaneously circuit also has voltage regulation performance, therefore has the advantage of the low and stable performance of diverse in function, cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of lithium battery charging circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of lithium battery charging circuit, comprise diode D1, triode V1, transformer W and resistance R2, the anode of described diode D1 connects 220V alternating current, the negative electrode of diode D1 connects electric capacity C1, electric capacity C2, resistance R1, the winding N1 of resistance R2 and transformer W, the other end of electric capacity C1 connects electric capacity C3, resistance R4, the emitter of triode V2, the other end of 220V alternating current and the winding N2 of transformer W, the other end of electric capacity C3 connects the anode of diode D3 and the anode of diode D4, the negative electrode contact resistance R1 of diode D3, resistance R3, the base stage of triode V1 and the collector electrode of triode V2, the other end of resistance R3 connects electric capacity C4, the other end of electric capacity C4 connects the other end of the negative electrode of diode D4 and the winding N2 of transformer W, the other end of other end contact resistance R2 of electric capacity C2 and the negative electrode of diode D2, the collector electrode of anode connecting triode V1 of diode D2 and the other end of the winding N1 of transformer W, the base stage of triode V2 connects the negative electrode of diode D5, the other end of anode contact resistance R4 of diode D5 and the emitter of triode V1, one end of the winding N3 of transformer W connects the anode of diode D6, the negative electrode of diode D6 connects electric capacity C5, resistance R5, the positive pole of lithium battery E and transient voltage suppressor diode DW, the other end of the winding N3 of transformer W connects the other end of electric capacity C5, the negative electrode of diode D7, the negative pole of lithium battery E and the other end of transient voltage suppressor diode DW, the other end of the anode contact resistance R5 of diode D7.
Described diode D7 is light-emitting diode.
Operation principle of the present utility model is: the direct voltage that civil power obtains about 300V after D1 rectification and C1 filtering is added on the winding N1 of transformer, simultaneously this voltage to add after after upper offset to V1 through R1 and makes its conducting, electric current is had to flow through N1, winding N2 forms positive voltage simultaneously, this voltage feeds back to V1 through C4, R3, make its more conducting, and even it is saturated, finally with the reduction of feedback current, V1 exits rapidly saturated and ends, circulation like this forms vibration, and secondary winding N3 induces required output voltage.N2 is feedback coil, also forms voltage stabilizing circuit together with D4, D3, C3 simultaneously.After the voltage of winding N3 after D6 rectification on C5 raises, also showing as the voltage of N2 after D4 rectification on C3 negative pole lower, the D3 conducting when being low to moderate the voltage stabilizing value being about voltage-stabiliser tube D3 simultaneously, making V1 have base stage to be shorted to ground, turn off V1, finally make output voltage reduce.In circuit, R4, D5, V2 form current foldback circuit.When the operating current of triode V1 large too time, the voltage of the upper generation of R4 adds to V2 base stage through D5, V2 conducting, and the decline of V1 base voltage, makes V1 electric current reduce.To change output voltage, as long as change the diode D3 of different voltage stabilizing value, voltage stabilizing value is less, and output voltage is lower, otherwise then higher.The leakage inductance voltage clamping produced when the peak voltage that city's electro-mechanical wave can produce by transient voltage suppressor diode DW and transformer coil coupling, to safety value, increases the stability of circuit.
Claims (2)
1. a lithium battery charging circuit, comprise diode D1, triode V1, transformer W and resistance R2, it is characterized in that, the anode of described diode D1 connects 220V alternating current, the negative electrode of diode D1 connects electric capacity C1, electric capacity C2, resistance R1, the winding N1 of resistance R2 and transformer W, the other end of electric capacity C1 connects electric capacity C3, resistance R4, the emitter of triode V2, the other end of 220V alternating current and the winding N2 of transformer W, the other end of electric capacity C3 connects the anode of diode D3 and the anode of diode D4, the negative electrode contact resistance R1 of diode D3, resistance R3, the base stage of triode V1 and the collector electrode of triode V2, the other end of resistance R3 connects electric capacity C4, the other end of electric capacity C4 connects the other end of the negative electrode of diode D4 and the winding N2 of transformer W, the other end of other end contact resistance R2 of electric capacity C2 and the negative electrode of diode D2, the collector electrode of anode connecting triode V1 of diode D2 and the other end of the winding N1 of transformer W, the base stage of triode V2 connects the negative electrode of diode D5, the other end of anode contact resistance R4 of diode D5 and the emitter of triode V1, one end of the winding N3 of transformer W connects the anode of diode D6, the negative electrode of diode D6 connects electric capacity C5, resistance R5, the positive pole of lithium battery E and transient voltage suppressor diode DW, the other end of the winding N3 of transformer W connects the other end of electric capacity C5, the negative electrode of diode D7, the negative pole of lithium battery E and the other end of transient voltage suppressor diode DW, the other end of the anode contact resistance R5 of diode D7.
2. a kind of lithium battery charging circuit according to claim 1, is characterized in that, described diode D7 is light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520851037.5U CN205051415U (en) | 2015-10-28 | 2015-10-28 | Lithium battery charging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520851037.5U CN205051415U (en) | 2015-10-28 | 2015-10-28 | Lithium battery charging circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205051415U true CN205051415U (en) | 2016-02-24 |
Family
ID=55344959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520851037.5U Expired - Fee Related CN205051415U (en) | 2015-10-28 | 2015-10-28 | Lithium battery charging circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205051415U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375600A (en) * | 2015-10-28 | 2016-03-02 | 邹小辉 | Lithium battery charging circuit |
| CN111775736A (en) * | 2020-06-05 | 2020-10-16 | 深圳供电局有限公司 | UAV system and wireless charging device |
-
2015
- 2015-10-28 CN CN201520851037.5U patent/CN205051415U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375600A (en) * | 2015-10-28 | 2016-03-02 | 邹小辉 | Lithium battery charging circuit |
| CN111775736A (en) * | 2020-06-05 | 2020-10-16 | 深圳供电局有限公司 | UAV system and wireless charging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Qiong Inventor before: Zou Xiaohui |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160525 Address after: 511495, Guangzhou, Guangdong province Panyu District Shek Pik street, second village, lychee Gang, two Patentee after: GUANGZHOU JIANGKE ELECTRONICS CO., LTD. Address before: 516000 Baiyun District, Guangdong City, Huizhou Province town of fresh water on the road two Patentee before: Zou Xiaohui |
|
| 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: 20160224 Termination date: 20161028 |