CN205544351U - Handheld terminal charging circuit - Google Patents
Handheld terminal charging circuit Download PDFInfo
- Publication number
- CN205544351U CN205544351U CN201620031118.5U CN201620031118U CN205544351U CN 205544351 U CN205544351 U CN 205544351U CN 201620031118 U CN201620031118 U CN 201620031118U CN 205544351 U CN205544351 U CN 205544351U
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- China
- Prior art keywords
- resistance
- audion
- charging circuit
- triode
- utility
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Abstract
The utility model provides a handheld terminal charging circuit, it includes first triode, second triode, first resistance, second resistance, third resistance, fourth resistance and a diode, the collecting electrode of first triode is connected the voltage anode and is connected with the one end of first resistance, the base of first triode is connected with the collecting electrode of the other end of first resistance, second triode, the projecting pole of first triode is connected with the one end of the one end of second resistance, third resistance to output as charging circuit, the other end of third resistance, the one end of fourth resistance are connected respectively to the base of second triode, the other end of second resistance and the negative pole of diode are connected to the projecting pole of second triode, the positive pole of diode and other end input voltage negative terminal, the output voltage negative terminal of fourth resistance. The utility model provides a handheld terminal charging circuit stabilization of output guarantees output voltage's quality.
Description
Technical field
This utility model relates to handheld terminal technical field, particularly a kind of handheld terminal charging circuit.
Background technology
The handheld terminal charging circuit that prior art provides, such as cell phone charging circuit, it may appear that output voltage is unstable
Fixed situation, causes damage to battery of mobile phone.
Utility model content
For solving above-mentioned technical problem, this utility model provides a kind of handheld terminal charging circuit, and it includes
First audion, the second audion, the first resistance, the second resistance, the 3rd resistance, the 4th resistance and one
Diode；
The colelctor electrode of described first audion connects one end of positive voltage terminal and the first resistance and connects, and described first
The base stage of audion is connected with the other end, the colelctor electrode of the second audion of the first resistance, described one or three pole
One end of the emitter stage of pipe and one end of the second resistance, the 3rd resistance connects, and as the output of charging circuit
End；
The base stage of described second audion connects the other end of the 3rd resistance, one end of the 4th resistance, institute respectively
The emitter stage stating the second audion connects the other end of the second resistance and the negative pole of diode, described diode
The other end input voltage negative terminal of positive pole and the 4th resistance, output voltage negative terminal.
This utility model has the advantages that
The handheld terminal charging circuit output voltage stabilization that this utility model provides, it is ensured that the quality of output voltage.
Certainly, implement arbitrary product of the present utility model to it is not absolutely required to reach all the above simultaneously
Advantage.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, institute embodiment will be described below
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only this practicality
Some novel embodiments, for those of ordinary skill in the art, before not paying creative work
Put, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The handheld terminal charging circuit configuration figure that Fig. 1 provides for this utility model embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technical side in this utility model embodiment
Case is clearly and completely described, it is clear that described embodiment is only that this utility model part is real
Execute example rather than whole embodiments.Based on the embodiment in this utility model, ordinary skill people
All other embodiments that member is obtained under not making creative work premise, broadly fall into this utility model
The scope of protection.
This utility model embodiment provides a kind of handheld terminal charging circuit, it include the first audion T1,
Second audion T2, the first resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4 and
Diode Dz；
The colelctor electrode of the first audion T1 connects voltage Vi anode and the one end with the first resistance R1 is connected, the
The base stage of one audion T1 is connected with the other end, the colelctor electrode of the second audion T2 of the first resistance R1, the
One end of the emitter stage of one audion T1 and one end of the second resistance R2, the 3rd resistance R3 connects, and conduct
The outfan of charging circuit；
The base stage of the second audion T2 connects the other end of the 3rd resistance R3, one end of the 4th resistance R4 respectively,
The emitter stage of the second audion T2 connects the other end of the second resistance R2 and the negative pole of diode Dz, diode
The positive pole of Dz and the other end input voltage negative terminal of the 4th resistance R4, output voltage negative terminal.
The handheld terminal charging circuit output voltage stabilization that this utility model provides, it is ensured that the quality of output voltage.
This utility model preferred embodiment disclosed above is only intended to help to illustrate this utility model.Preferred embodiment
The not all of details of detailed descriptionthe, is also not intended to the detailed description of the invention that this utility model is only described.
Obviously, according to the content of this specification, can make many modifications and variations.This specification is chosen and has
Body describes these embodiments, is to preferably explain principle of the present utility model and actual application, so that
Skilled artisan can be best understood by and utilize this utility model.This utility model is only by right
Claim and four corner thereof and the restriction of equivalent.
Claims (1)
1. a handheld terminal charging circuit, it is characterised in that include the first audion, the second audion,
First resistance, the second resistance, the 3rd resistance, the 4th resistance and a diode；
The colelctor electrode of described first audion connects positive voltage terminal and the one end with the first resistance is connected, and described the
The base stage of one audion is connected with the other end, the colelctor electrode of the second audion of the first resistance, and the described 1st
The emitter stage of pole pipe and one end of the second resistance, one end of the 3rd resistance connect, and defeated as charging circuit
Go out end；
The base stage of described second audion connects the other end of the 3rd resistance, one end of the 4th resistance, institute respectively
The emitter stage stating the second audion connects the other end of the second resistance and the negative pole of diode, described diode
The other end input voltage negative terminal of positive pole and the 4th resistance, output voltage negative terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620031118.5U CN205544351U (en) | 2016-01-11 | 2016-01-11 | Handheld terminal charging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620031118.5U CN205544351U (en) | 2016-01-11 | 2016-01-11 | Handheld terminal charging circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205544351U true CN205544351U (en) | 2016-08-31 |
Family
ID=56764699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620031118.5U Expired - Fee Related CN205544351U (en) | 2016-01-11 | 2016-01-11 | Handheld terminal charging circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205544351U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786943A (en) * | 2016-12-31 | 2017-05-31 | 马鞍山格尚智能装备有限公司 | A kind of smart mobile phone charging circuit |
-
2016
- 2016-01-11 CN CN201620031118.5U patent/CN205544351U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786943A (en) * | 2016-12-31 | 2017-05-31 | 马鞍山格尚智能装备有限公司 | A kind of smart mobile phone charging circuit |
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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: 20160831 Termination date: 20170111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |