CN208158186U - A kind of plug charging circuit and mobile phone connection plug - Google Patents
A kind of plug charging circuit and mobile phone connection plug Download PDFInfo
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- CN208158186U CN208158186U CN201820679501.0U CN201820679501U CN208158186U CN 208158186 U CN208158186 U CN 208158186U CN 201820679501 U CN201820679501 U CN 201820679501U CN 208158186 U CN208158186 U CN 208158186U
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Abstract
The utility model discloses a kind of plug charging circuits, including main control chip U1, switching circuit, input circuit and the output circuit being electrically connected with main control chip U1, the input terminal of output end connection the main control chip U1 and switching circuit of input circuit, the output end of the input terminal connection switch circuit of output circuit.It is parallel with a first two-way TVS diode D1 between the input terminal of main control chip U1, the input terminal of switching circuit and the output end of input circuit, a second two-way TVS diode D2 is parallel between the output end of switching circuit and the input terminal of the output circuit.The utility model improves the Anti-surging anti-static ability of circuit by the first two-way TVS diode and the second two-way TVS diode.The invention also discloses a kind of mobile phone connection plugs to improve the service life and safety of mobile phone connection plug by using above-mentioned plug charging circuit.
Description
Technical field
The utility model relates to charging equipment technical fields, connect and insert more particularly to a kind of plug charging circuit and mobile phone
Head.
Background technique
With popularizing for mobile phone, the frequency of people visual field mobile phone is higher and higher, and the number for needing to use charging equipment is also got over
Come it is more, but existing charging equipment charging when be easy to produce surge and electrostatic, not only have damage to charging equipment, but also
It also can there are security risks to people.
Utility model content
The purpose of this utility model is to provide a kind of antistatic, Anti-surging, highly-safe plug charging circuits and hand
Machine connection plug.
A kind of plug charging circuit disclosed by the utility model and mobile phone connection plug the technical solution adopted is that：One kind is inserted
Head charging circuit, including main control chip U1, the switching circuit being electrically connected with the main control chip U1, input circuit and output electricity
Road, the output end of the input circuit connect the input terminal of the main control chip U1 and the switching circuit, the output circuit
Input terminal connect the output end of the switching circuit.
Between the input terminal of the main control chip U1, the input terminal of the switching circuit and the output end of the input circuit
It is parallel with a first two-way TVS diode D1, the other end ground connection of the first two-way TVS diode D1, the switch electricity
It is parallel with a second two-way TVS diode D2 between the output end on road and the input terminal of the output circuit, described second pair
It is grounded to the other end of TVS diode D2.
Preferably, resistance R1 is in series between the output end of the input circuit and the main control chip U1.
Preferably, the switching circuit includes field-effect tube Q1, and the field-effect tube Q1 is P-channel field-effect transistor (PEFT)
Pipe, the grid of the field-effect tube Q1 connect the main control chip U1, and the source electrode of the field-effect tube Q1 connects the input electricity
The output end on road, the drain electrode of the field-effect tube Q1 connect the input terminal of the output circuit.
Preferably, resistance R2 is parallel between the source electrode and drain electrode of the field-effect tube Q1.
Preferably, capacitor C1 is also parallel between the source electrode and drain electrode of the field-effect tube Q1.
Preferably, in parallel and capacitor C2 between the grid and drain electrode of the field-effect tube Q1.
Preferably, the main control chip U1 is also connected with filter circuit, and the filter circuit includes capacitor C3, institute
State the other end ground connection of capacitor C3.
Preferably, also pass through data line electrical connection between the input circuit and the output circuit.
A kind of mobile phone connection plug, including 8P connection plug, it is as described above in the 8P connection plug including being mounted on
Plug charging circuit.
The utility model provides a kind of plug charging circuit, passes through one the first two-way TVS of parallel connection after input circuit
Diode and a second two-way TVS diode in parallel before output circuit, when charging generates surge, the first two-way TVS
Diode and the second two-way TVS diode can absorb impact in a very short period of time, the first two-way TVS diode and second two-way
TVS diode is breakdown, and impedance is down to very low conduction value at once, by excessive voltage clamp to scheduled level, then
Pressure release is carried out by ground connection, to protect circuit.Electrostatic effect is generated before switching circuit, the first two-way TVS diode can have
Effect prevents overcurrent from flowing into circuit, overcurrent is drained away from ground wire, so that circuit be protected not to be burned.Switching circuit
Electrostatic effect is generated later, and the second two-way TVS diode can effectively prevent overcurrent and burn out circuit.
The utility model also provides a kind of mobile phone connection plug, when using carrying out charging generation surge and electrostatic, passes through hand
Plug charging circuit energy moment Clamping voltages inside machine connection plug are down to predeterminated level, and excessive electric current is drained away,
It is not damaged to effectively protect the component inside mobile phone connection plug, improves the service life of mobile phone connection plug
And safety, also protect human body not by Danger Electric shock risk.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the plug charging circuit of the utility model.
Specific embodiment
The utility model is further elaborated and is illustrated with Figure of description combined with specific embodiments below：Please refer to figure
1, a kind of plug charging circuit, including the model YA03 decoding chip of main control chip U1, the main control chip U1.With the master
Switching circuit, input circuit and output circuit that chip U1 is electrically connected are controlled, the output end of the input circuit connects the master
The input terminal of chip U1 and the switching circuit are controlled, the input terminal of the output circuit connects the output end of the switching circuit.
Between the input terminal of the main control chip U1, the input terminal of the switching circuit and the output end of the input circuit
It is parallel with a first two-way TVS diode D1, the other end ground connection of the first two-way TVS diode D1, the switch electricity
It is parallel with a second two-way TVS diode D2 between the output end on road and the input terminal of the output circuit, described second pair
It is grounded to the other end of TVS diode D2.
Resistance R1 is in series between the output end of the input circuit and the main control chip U1.The resistance R1 is current limliting
Resistance protects main control chip U1.
The switching circuit includes field-effect tube Q1, and the field-effect tube Q1 is P-channel field-effect transistor (PEFT) pipe, the field-effect tube
The grid of Q1 connects the main control chip U1, and the source electrode of the field-effect tube Q1 connects the output end of the input circuit, described
The drain electrode of field-effect tube Q1 connects the input terminal of the output circuit.
Resistance R2 is parallel between the source electrode and drain electrode of the field-effect tube Q1.The resistance R2 is bias resistance, when opening
Powered-down road overtension, can carry out pressure release prevents switching circuit to be destroyed.When mobile phone starts to charge, resistance R2 can give mobile phone
Voltage is provided.
Capacitor C1 is also parallel between the source electrode and drain electrode of the field-effect tube Q1.The grid of the field-effect tube Q1 and leakage
In parallel and capacitor C2 between pole.The Anti-surging and antistatic energy of the first two-way two-way TVS diode D2 of TVS diode D1 and second
Power is limited, and capacitor C1, capacitor C2 can effectively improve electricity plus the first two-way two-way TVS diode D2 of TVS diode D1 and second
The field-effect tube Q1 that switching circuit can be effectively protected in the Anti-surging and anti-static ability on road, capacitor C1 and capacitor C2 is not damaged
It is bad.
The main control chip U1 is also connected with filter circuit, and the filter circuit includes capacitor C3, and the capacitor C3's is another
One end ground connection.Capacitor C3 plays the role of rectifying and wave-filtering.
Also pass through data line electrical connection between the input circuit and the output circuit.When charging, resistance R2 is provided
One voltage of mobile phone, the charge request signal that mobile phone issues feed back the output to input circuit from output circuit by data line
End, to start to charge.
A kind of mobile phone connection plug, including 8P connection plug, it is as described above in the 8P connection plug including being mounted on
Plug charging circuit.
The utility model provides a kind of plug charging circuit, passes through one the first two-way TVS of parallel connection after input circuit
Diode and a second two-way TVS diode in parallel before output circuit, when charging generates surge, the first two-way TVS
Diode and the second two-way TVS diode can absorb impact in a very short period of time, the first two-way TVS diode and second two-way
TVS diode is breakdown, and impedance is down to very low conduction value at once, by excessive voltage clamp to scheduled level, then
Pressure release is carried out by ground connection, to protect circuit.Electrostatic effect is generated before switching circuit, the first two-way TVS diode can have
Effect prevents overcurrent from flowing into circuit, overcurrent is drained away from ground wire, so that circuit be protected not to be burned.Switching circuit
Electrostatic effect is generated later, and the second two-way TVS diode can effectively prevent overcurrent and burn out circuit.
The utility model also provides a kind of mobile phone connection plug, when using carrying out charging generation surge and electrostatic, passes through hand
Plug charging circuit energy moment Clamping voltages inside machine connection plug are down to predeterminated level, and excessive electric current is drained away,
It is not damaged to effectively protect the component inside mobile phone connection plug, improves the service life of mobile phone connection plug
And safety, also protect human body not by Danger Electric shock risk.
Finally it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than to this reality
With the limitation of novel protected range, although being explained in detail referring to preferred embodiment to the utility model, this field it is general
Lead to it will be appreciated by the skilled person that can be with the technical solution of the present invention is modified or equivalently replaced, without departing from this
The spirit and scope of utility model technical solution.
Claims (9)
1. a kind of plug charging circuit, it is characterised in that：Including main control chip U1, opened with what the main control chip U1 was electrically connected
Powered-down road, input circuit and output circuit, the output end of the input circuit connect the main control chip U1 and switch electricity
The input terminal on road, the input terminal of the output circuit connect the output end of the switching circuit；The input of the main control chip U1
A first two-way TVS diode is parallel between end, the input terminal of the switching circuit and the output end of the input circuit
The other end of D1, the first two-way TVS diode D1 is grounded, the output end of the switching circuit and the output circuit it is defeated
Enter and is parallel with a second two-way TVS diode D2 between end, the other end ground connection of the second two-way TVS diode D2.
2. plug charging circuit as described in claim 1, it is characterised in that：The output end of the input circuit and the master control
Resistance R1 is in series between chip U1.
3. plug charging circuit as described in claim 1, it is characterised in that：The switching circuit includes field-effect tube Q1, institute
Stating field-effect tube Q1 is P-channel field-effect transistor (PEFT) pipe, and the grid of the field-effect tube Q1 connects the main control chip U1, the field-effect
The source electrode of pipe Q1 connects the output end of the input circuit, and the drain electrode of the field-effect tube Q1 connects the input of the output circuit
End.
4. plug charging circuit as claimed in claim 3, it is characterised in that：Between the source electrode and drain electrode of the field-effect tube Q1
It is parallel with resistance R2.
5. plug charging circuit as claimed in claim 3, it is characterised in that：Between the source electrode and drain electrode of the field-effect tube Q1
Also it is parallel with capacitor C1.
6. plug charging circuit as claimed in claim 3, it is characterised in that：Between the grid and drain electrode of the field-effect tube Q1
In parallel and capacitor C2.
7. plug charging circuit as described in claim 1, it is characterised in that：The main control chip U1 is also connected with filtered electrical
Road, the filter circuit include capacitor C3, the other end ground connection of the capacitor C3.
8. plug charging circuit as described in claim 1, it is characterised in that：Between the input circuit and the output circuit
Also pass through data line electrical connection.
9. a kind of mobile phone connection plug, including 8P connection plug, including be mounted in the 8P connection plug such as claim
The described in any item plug charging circuits of 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820679501.0U CN208158186U (en) | 2018-05-08 | 2018-05-08 | A kind of plug charging circuit and mobile phone connection plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820679501.0U CN208158186U (en) | 2018-05-08 | 2018-05-08 | A kind of plug charging circuit and mobile phone connection plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208158186U true CN208158186U (en) | 2018-11-27 |
Family
ID=64389966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820679501.0U Active CN208158186U (en) | 2018-05-08 | 2018-05-08 | A kind of plug charging circuit and mobile phone connection plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208158186U (en) |
-
2018
- 2018-05-08 CN CN201820679501.0U patent/CN208158186U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181130 Address after: 518105 Shanmen Community, Songgang Street, Baoan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen far love Electronic Technology Co., Ltd. Address before: 417700 Hongshan Road, Hongshandian Town, Shuangfeng County, Loudi City, Hunan Province Patentee before: Du Changbo |