CN205051412U - Adjustable charger of lithium cell - Google Patents
Adjustable charger of lithium cell Download PDFInfo
- Publication number
- CN205051412U CN205051412U CN201520850830.3U CN201520850830U CN205051412U CN 205051412 U CN205051412 U CN 205051412U CN 201520850830 U CN201520850830 U CN 201520850830U CN 205051412 U CN205051412 U CN 205051412U
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- chip
- pin
- electric capacity
- resistance
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an adjustable charger of lithium cell, including resistance R4, electric capacity C4, arrangement bridge T and chip IC1, electric capacity C4 and 220V alternating current are connected to resistance R4's one end, electric capacity C4's the other end and rectifier bridge T's port 1 are connected to resistance R4's the other end, rectifier bridge T's 2 pins 1 of connecting electric capacity C1 and chip IC1 of port, electric capacity C2 is connected to electric capacity C1's the other end, electric capacity C3, diode D1's negative pole, resistance R3, lithium cell E's negative pole, rectifier bridge T's port 4, chip IC1's pin 2, chip IC2's pin 1, chip IC2's pin 3 and chip IC2's pin 6. The utility model discloses adjustable charger of lithium cell circuit structure is simple, components and parts are few, regulation charging voltage's that not only can be convenient size, but also have the charge indication function, consequently have the advantage that convenient to use, stable performance and cost of manufacture are low.
Description
Technical field
The utility model relates to a kind of lithium battery circuit, specifically a kind of lithium battery adjustable charger.
Background technology
Lithium battery is rechargeable battery common in daily life, it has the advantage such as stable performance, life-span length, lithium cell charging needs to be equipped with charger, but the most function singleness of its charger, fixing voltage can only be exported, therefore compatible poor, cause family to have a lot of charger, cause very large puzzlement to user.
Utility model content
The purpose of this utility model is the lithium battery adjustable charger 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 adjustable charger, comprises resistance R4, electric capacity C4, arrange bridge T and chip IC 1, one end of described resistance R4 connects electric capacity C4 and 220V alternating current, the other end of resistance R4 connects the other end of electric capacity C4 and the port one of rectifier bridge T, and the port 2 of rectifier bridge T connects the pin 1 of electric capacity C1 and chip IC 1, and the other end of electric capacity C1 connects electric capacity C2, electric capacity C3, the negative electrode of diode D1, resistance R3, the negative pole of lithium battery E, the port 4 of rectifier bridge T, the pin 2 of chip IC 1, the pin 1 of chip IC 2, the pin 3 of chip IC 2 and the pin 6 of chip IC 2, the pin 3 contact resistance R1 of chip IC 1, resistance R2, electric capacity C2, the pin 4 of chip IC 2 and the pin 7 of chip IC 2, the other end of resistance R1 connects the anode of diode D1, the other end of resistance R2 connects the anode of diode D2, the negative electrode of diode D2 connects the pin 8 of chip IC 1, the pin 2 contact resistance R3 of chip IC 2 and a stiff end of potentiometer RP1, the pin 5 of chip IC 2 connects the other end of electric capacity C3, another stiff end of potentiometer RP1, the sliding end of potentiometer RP1 and the positive pole of storage battery E, the model of described chip IC 1 is LM7805, and the model of described chip IC 2 is MAX1811.
As preferred version of the present utility model: described diode D1 is red light-emitting diode, diode D2 is green light LED.
Compared with prior art, the beneficial effects of the utility model are: the utility model lithium battery adjustable charger circuit structure is simple, components and parts are few, the size of charging voltage can not only be regulated easily, but also there is charging indication function, therefore there is easy to use, stable performance and the low advantage of cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of lithium battery adjustable charger.
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 adjustable charger, comprises resistance R4, electric capacity C4, arrange bridge T and chip IC 1, one end of described resistance R4 connects electric capacity C4 and 220V alternating current, the other end of resistance R4 connects the other end of electric capacity C4 and the port one of rectifier bridge T, and the port 2 of rectifier bridge T connects the pin 1 of electric capacity C1 and chip IC 1, and the other end of electric capacity C1 connects electric capacity C2, electric capacity C3, the negative electrode of diode D1, resistance R3, the negative pole of lithium battery E, the port 4 of rectifier bridge T, the pin 2 of chip IC 1, the pin 1 of chip IC 2, the pin 3 of chip IC 2 and the pin 6 of chip IC 2, the pin 3 contact resistance R1 of chip IC 1, resistance R2, electric capacity C2, the pin 4 of chip IC 2 and the pin 7 of chip IC 2, the other end of resistance R1 connects the anode of diode D1, the other end of resistance R2 connects the anode of diode D2, the negative electrode of diode D2 connects the pin 8 of chip IC 1, the pin 2 contact resistance R3 of chip IC 2 and a stiff end of potentiometer RP1, the pin 5 of chip IC 2 connects the other end of electric capacity C3, another stiff end of potentiometer RP1, the sliding end of potentiometer RP1 and the positive pole of storage battery E, the model of described chip IC 1 is LM7805, and the model of described chip IC 2 is MAX1811.
Diode D1 is red light-emitting diode, and diode D2 is green light LED.
Operation principle of the present utility model is: 220V line voltage becomes direct voltage after resistance R4 step-down and rectifier bridge T rectification, and direct voltage, after C1 filtering and IC1 voltage stabilizing, exports as 5V direct current, and LED1 is power supply instruction.The MAX1811 integrated circuit of IC2 has two to arrange end: 1 pin is that charging voltage arranges end, when being set to high level, is 4.2V to the final charging voltage of battery.When being set to low level, be 4.1V to the final charging voltage of battery.In order to adapt to the lithium battery of different final charging voltage.The final charging voltage precision of MAX1811 can reach 0.5%, can charge to battery safely.2 pin are that charging current arranges end.Potentiometer RP1 is used for the size of regulation output electric current, to adapt to the lithium battery of different capabilities.8 pin are state indication end, are low level between charge period, connect diode D2 as charging instruction.Diode D1 is power supply indicator.
Claims (2)
1. a lithium battery adjustable charger, comprises resistance R4, electric capacity C4, arrange bridge T and chip IC 1, it is characterized in that, one end of described resistance R4 connects electric capacity C4 and 220V alternating current, the other end of resistance R4 connects the other end of electric capacity C4 and the port one of rectifier bridge T, the port 2 of rectifier bridge T connects the pin 1 of electric capacity C1 and chip IC 1, and the other end of electric capacity C1 connects electric capacity C2, electric capacity C3, the negative electrode of diode D1, resistance R3, the negative pole of lithium battery E, the port 4 of rectifier bridge T, the pin 2 of chip IC 1, the pin 1 of chip IC 2, the pin 3 of chip IC 2 and the pin 6 of chip IC 2, the pin 3 contact resistance R1 of chip IC 1, resistance R2, electric capacity C2, the pin 4 of chip IC 2 and the pin 7 of chip IC 2, the other end of resistance R1 connects the anode of diode D1, the other end of resistance R2 connects the anode of diode D2, the negative electrode of diode D2 connects the pin 8 of chip IC 1, the pin 2 contact resistance R3 of chip IC 2 and a stiff end of potentiometer RP1, the pin 5 of chip IC 2 connects the other end of electric capacity C3, another stiff end of potentiometer RP1, the sliding end of potentiometer RP1 and the positive pole of storage battery E, the model of described chip IC 1 is LM7805, and the model of described chip IC 2 is MAX1811.
2. a kind of lithium battery adjustable charger according to claim 1, is characterized in that, described diode D1 is that ruddiness sends out diode, diode D2 green light LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850830.3U CN205051412U (en) | 2015-10-28 | 2015-10-28 | Adjustable charger of lithium cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520850830.3U CN205051412U (en) | 2015-10-28 | 2015-10-28 | Adjustable charger of lithium cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205051412U true CN205051412U (en) | 2016-02-24 |
Family
ID=55344956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520850830.3U Expired - Fee Related CN205051412U (en) | 2015-10-28 | 2015-10-28 | Adjustable charger of lithium cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205051412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337386A (en) * | 2015-10-28 | 2016-02-17 | 邹小辉 | Lithium battery adjustable charger |
-
2015
- 2015-10-28 CN CN201520850830.3U patent/CN205051412U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337386A (en) * | 2015-10-28 | 2016-02-17 | 邹小辉 | Lithium battery adjustable charger |
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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: 20160224 Termination date: 20171028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |