CN205453196U - Activation electricity charging circuit based on mobile phone batteries - Google Patents
Activation electricity charging circuit based on mobile phone batteries Download PDFInfo
- Publication number
- CN205453196U CN205453196U CN201620002349.3U CN201620002349U CN205453196U CN 205453196 U CN205453196 U CN 205453196U CN 201620002349 U CN201620002349 U CN 201620002349U CN 205453196 U CN205453196 U CN 205453196U
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- CN
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- Prior art keywords
- charging circuit
- schottky diode
- input
- mobile phone
- electricity charging
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses an activation electricity charging circuit based on mobile phone batteries, including mobile phone motherboard, the input of USB interface is connected with the output of adapter, the output and the input of activation electricity charging circuit of USB interface are connected, activation electricity charging circuit includes D1 schottky diode, D3 schottky diode and D9 schottky diode, establish ties in proper order between D1 schottky diode, D3 schottky diode and the D9 schottky diode, the output of activation electricity charging circuit is connected with the input of lithium cell, lithium battery output end is connected with mobile phone motherboard's input, and this activation electricity charging circuit adopts the effectual messenger's battery of three schottky diode series connection to carry out trickle charge to the battery under 3.5V's low -voltage, safe and reliable, and this circuit structure is simple, and easily PCB design need not the specific IC of charging and realizes the function, and the material is chooseed for use, and is with low costs, is the selection of relatively good activation electricity charging scheme.
Description
Technical field
This utility model relates to a kind of activated current charging circuit technical field, a kind of activated current charging circuit based on battery of mobile phone.
Background technology
Cell phone charging circuit is all to realize battery by distinctive integrated IC to charge at present, cell voltage now is many at more than 3.7V, battery of mobile phone is to typically will automatic shutdown during 3.7V voltage again, and now begin to charging, design just for 3.7V's at general cell phone charging circuit, if the IC cost of additional band activated current charging scheme improves much the most relatively, it is unfavorable for the popularization of consumption market, IC scheme charging voltage with activating charge scheme is USB port voltage 5V, this voltage is the highest relative to cell voltage, in charging process dangerous, big to battery loss.
Therefore, for avoiding above-mentioned technology, Cost Problems, a kind of activated current charging circuit based on battery of mobile phone of necessary offer, it is provided that the more reliable charging circuit stablizing low cost.
Summary of the invention
The purpose of this utility model is to provide a kind of activated current charging circuit based on battery of mobile phone, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, this utility model following technical scheme of offer: a kind of activated current charging circuit based on battery of mobile phone, including cell phone mainboard, described cell phone mainboard is provided with USB interface and activated current charging circuit, the input of described USB interface is connected with the outfan of adapter, the outfan of described USB interface is connected with the input of activated current charging circuit, described activated current charging circuit includes D1 Schottky diode, D3 Schottky diode and D9 Schottky diode, described D1 Schottky diode, it is sequentially connected in series between D3 Schottky diode and D9 Schottky diode, the described outfan of activated current charging circuit is connected with the input of lithium battery, the outfan of described lithium battery is connected with the input of cell phone mainboard.
Preferably, the input electric current of described activated current charging circuit is 5V1A, and the output end current of described activated current charging circuit is 3.5V200mA.
Compared with prior art, the beneficial effects of the utility model are: this activated current charging circuit uses three Schottky diode series connection effectively to make battery, under the low-voltage of 3.5V, battery be carried out trickle charge, safe and reliable, and this circuit structure is simple, being prone to PCB design, it is not necessary to specific charging IC realizes function, material is selected, low cost, is the selection of reasonable activated current charging scheme.
Accompanying drawing explanation
Fig. 1 is the schematic block diagram that this utility model is applied to cell phone system；
Fig. 2 is activated current charging circuit figure based on battery of mobile phone of the present utility model.
In figure: 1 cell phone mainboard, 2USB interface, 3 activated current charging circuits, 31D1 Schottky diode, 32D3 Schottky diode, 33D9 Schottky diode, 4 adapters, 5 lithium batteries.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
nullRefer to Fig. 1-2，A kind of technical scheme of this utility model offer: a kind of activated current charging circuit based on battery of mobile phone，Including cell phone mainboard 1，Described cell phone mainboard is provided with USB interface 2 and activated current charging circuit 3，The input of described USB interface 2 is connected with the outfan of adapter 4，The outfan of described USB interface 2 is connected with the input of activated current charging circuit 3，Described activated current charging circuit 3 includes D1 Schottky diode 31、D3 Schottky diode 32 and D9 Schottky diode 33，Described D1 Schottky diode 31、It is sequentially connected in series between D3 Schottky diode 32 and D9 Schottky diode 33，Three Schottky diode series connection are used effectively to make battery, under the low-voltage of 3.5V, battery be carried out trickle charge，Safe and reliable，The outfan of described activated current charging circuit 3 is connected with the input of lithium battery 5，The outfan of described lithium battery 5 is connected with the input of cell phone mainboard 1，The input electric current of described activated current charging circuit 3 is 5V1A，The output end current of described activated current charging circuit 3 is 3.5V200mA，This circuit structure is simple，It is prone to PCB design，Function is realized without specific charging IC，Material is selected，Low cost，It it is the selection of reasonable activated current charging scheme.
Embodiment the most of the present utility model, for the ordinary skill in the art, being appreciated that in the case of without departing from principle of the present utility model and spirit and these embodiments can carry out multiple change, revise, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (2)
- null1. an activated current charging circuit based on battery of mobile phone，Including cell phone mainboard (1)，Described cell phone mainboard (1) is provided with USB interface (2) and activated current charging circuit (3)，It is characterized in that: the input of described USB interface (2) is connected with the outfan of adapter (4)，The outfan of described USB interface (2) is connected with the input of activated current charging circuit (3)，Described activated current charging circuit (3) includes D1 Schottky diode (31)、D3 Schottky diode (32) and D9 Schottky diode (33)，Described D1 Schottky diode (31)、It is sequentially connected in series between D3 Schottky diode (32) and D9 Schottky diode (33)，The outfan of described activated current charging circuit (3) is connected with the input of lithium battery (5)，The outfan of described lithium battery (5) is connected with the input of cell phone mainboard (1).
- A kind of activated current charging circuit based on battery of mobile phone the most according to claim 1, it is characterized in that: the input electric current of described activated current charging circuit (3) is 5V1A, the output end current of described activated current charging circuit (3) is 3.5V200mA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620002349.3U CN205453196U (en) | 2016-01-05 | 2016-01-05 | Activation electricity charging circuit based on mobile phone batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620002349.3U CN205453196U (en) | 2016-01-05 | 2016-01-05 | Activation electricity charging circuit based on mobile phone batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205453196U true CN205453196U (en) | 2016-08-10 |
Family
ID=56600710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620002349.3U Expired - Fee Related CN205453196U (en) | 2016-01-05 | 2016-01-05 | Activation electricity charging circuit based on mobile phone batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205453196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112820889A (en) * | 2021-01-05 | 2021-05-18 | 北京机电工程研究所 | Tandem type battery activation method and battery activation circuit using same |
-
2016
- 2016-01-05 CN CN201620002349.3U patent/CN205453196U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112820889A (en) * | 2021-01-05 | 2021-05-18 | 北京机电工程研究所 | Tandem type battery activation method and battery activation circuit using same |
| CN112820889B (en) * | 2021-01-05 | 2022-10-18 | 北京机电工程研究所 | Tandem type battery activation method and battery activation circuit using same |
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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: 20160810 Termination date: 20180105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |