CN208656446U - A kind of anti-impacting with high pressure input circuit of mobile power source - Google Patents
A kind of anti-impacting with high pressure input circuit of mobile power source Download PDFInfo
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- CN208656446U CN208656446U CN201821163796.2U CN201821163796U CN208656446U CN 208656446 U CN208656446 U CN 208656446U CN 201821163796 U CN201821163796 U CN 201821163796U CN 208656446 U CN208656446 U CN 208656446U
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Abstract
The utility model discloses a kind of anti-impacting with high pressure input circuits of mobile power source, are related to mobile power source technical field.The utility model includes USB interface J1, triode Q4, P-MOS transistor Q5 and zener diode D5, the pin 1 of USB interface J1 passes through resistance R46, R44 is connect with the base stage of triode Q4, the pin 1 of USB interface J1 is connect with the source electrode of P-MOS transistor Q5, the pin 1 of USB interface J1 is connect with the emitter of triode Q4, the collector of triode Q4 is connect with the grid of P-MOS transistor Q5, the collector of triode Q4 is grounded by resistance R45, zener diode D5 plus earth, cathode connects between resistance R44 and R46, the drain electrode of P-MOS transistor Q5 connects the end VIN.Anti- impacting with high pressure circuit is added by the input terminal in mobile power source in the utility model, effectively improves the charging security of mobile power source, reduce product using when because excessively high voltage causes damage of product quantity, improve the yield of product.
Description
Technical field
The invention belongs to mobile power source technical fields, input electricity more particularly to a kind of anti-impacting with high pressure of mobile power source
Road.
Background technique
Mobile power source has become the essential items that tourism is gone on business, while for mobile phone charging, mobile power source itself
It needs to carry out electric energy supplement.Currently, common mobile power source, directly directly fills mobile power source by phone charger
Electricity can generate transient current, mobile power source is often excessive because of transient current voltage, and causes mobile power source in plug connection
Damage destroys mobile power source battery, reduces the service life of product, or even can result in the safety problems such as explosion.
Summary of the invention
The purpose of the present invention is to provide a kind of anti-impacting with high pressure input circuits of mobile power source, by mobile power source
Anti- impacting with high pressure circuit is added in input terminal, effectively improves the charging security of mobile power source, reduce when product uses because
Excessively high voltage causes damage of product quantity, improves the yield of product.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions:
The present invention be a kind of mobile power source anti-impacting with high pressure input circuit, including USB interface J1, resistance R2, R43,
R44, R45, R46, capacitor C2, CP6, triode Q4, P-MOS transistor Q5 and zener diode D5, the USB interface J1's draws
Foot 1 is grounded by concatenated resistance R2, capacitor C2, and resistance R2 and capacitor C2 form filter circuit, is filtered to input current
Processing, the pin 4,5,6,7 of the USB interface J1 are grounded, and the pin 2,3 of the USB interface J1 connects sky, and the USB connects
The pin 1 of mouthful J1 connect with the emitter of triode Q4, the pin 1 of the USB interface J1 pass through concatenated resistance R46, R44 and
The base stage of triode Q4 connects, the zener diode D5 plus earth, the zener diode D5 cathode connect resistance R44 with
Between resistance R46, the collector of the triode Q4 is grounded by resistance R45, and the collector of the triode Q4 passes through resistance
R43 is connect with the emitter of triode Q4, and the emitter of the triode Q4 is connect with the source electrode of P-MOS transistor Q5, described
The grid of P-MOS transistor Q5 is connect with the collector of triode Q4, and the drain electrode of the P-MOS transistor Q5 passes through capacitor CP6
The drain electrode of ground connection, the P-MOS transistor Q5 exports the end VIN.
Preferably, the USB interface J1 is USB-mini interface, is adapted to mobile phone input interface, improves the suitable of mobile power source
The property used.
Preferably, the triode Q4 is PNP triode.
Preferably, the model DTS2305A of the P-MOS transistor Q5.
Preferably, the zener diode D5 is 5.6V zener diode.
The invention has the following advantages:
Anti- impacting with high pressure circuit is added by the input terminal in mobile power source in the present invention, effectively improves mobile power source
Charging security, reduce product using when because excessively high voltage cause damage of product quantity, improve the yield of product.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of circuit diagram of the anti-impacting with high pressure input circuit of mobile power source；
Fig. 2 is a kind of circuit diagram of anti-impacting with high pressure input mobile power source.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one:
Refering to Figure 1, a kind of anti-impacting with high pressure input circuit of the present invention for mobile power source, including USB interface J1,
Resistance R2, R43, R44, R45, R46, capacitor C2, CP6, triode Q4, P-MOS transistor Q5 and zener diode D5, USB connect
The pin 1 of mouth J1 passes through concatenated resistance R2, capacitor C2 and is grounded, and resistance R2 and capacitor C2 form filter circuit, to input current
It is filtered, the pin 4,5,6,7 of USB interface J1 is grounded, and the pin 2,3 of USB interface J1 meets sky, USB interface J1
Pin 1 connect with the emitter of triode Q4, the pin 1 of USB interface J1 passes through concatenated resistance R46, R44 and triode Q4
Base stage connection, zener diode D5 plus earth, zener diode D5 cathode connects between resistance R44 and resistance R46, three poles
The collector of pipe Q4 is grounded by resistance R45, and the collector of triode Q4 is connected by the emitter of resistance R43 and triode Q4
It connects, the emitter of triode Q4 is connect with the source electrode of P-MOS transistor Q5, and the grid of P-MOS transistor Q5 is with triode Q4's
Collector connection, the drain electrode of P-MOS transistor Q5 are grounded by capacitor CP6, and the drain electrode of P-MOS transistor Q5 exports the end VIN.
Preferably, USB interface J1 is USB-mini interface, is adapted to mobile phone input interface, improves the applicability of mobile power source.
Preferably, triode Q4 is PNP triode.
Preferably, the model DTS2305A of P-MOS transistor Q5.
Preferably, zener diode D5 is 5.6V zener diode.
Embodiment two:
It please refers to shown in Fig. 2, the present invention is a kind of anti-impacting with high pressure input circuit of mobile power source, other circuit parts are also
Pin 1 and P- including power management chip U1, battery protection chip U2 and USB output interface J2, power management chip U1
The drain electrode of MOS triode Q5 connects, and the pin 2 of power management chip U1 passes through LED light D1, D2 and power management of reverse parallel connection
The pin 4 of chip U1 connects, and the pin 3 of power management chip U1 passes through LED light D3, D4 and power management chip of reverse parallel connection
The pin 4 of U1 connects, and the pin 5 of power management chip U1 is connect by resistance R1 with the one end switch K1, another termination of switch K1
Ground, capacitor C4 are connected in parallel on the both ends switch K1, and the pin 6 of power management chip U1 is grounded by capacitor C1, power management chip U1
Pin 7 connect with one end of inductance L1, the other end of inductance L1 is connected by the pin 6 of resistance R3 and power management chip U1
It connects, inductance L1 is grounded by capacitor CP2, and the pin 8 of power management chip U1 passes through capacitor CP3, CP4 ground connection in parallel, power supply
The pin 8 of managing chip U1 is connect with the pin 1 of USB output interface J2, the pin 1 of USB output interface J2 by capacitor CP5 with
The pin 4 of USB output interface J2 connects, and the pin 2 and pin 3 of USB output interface J2 is connected with each other, USB output interface J2's
Pin 4,5,6 is grounded.
The pin 1,2,3,4 of battery protection chip U2 is grounded, and the pin 5 and pin 7,8 of battery protection chip U2 is mutual
The pin 6 of connection, battery protection chip U2 is connect by capacitor C3 with pin 8, the pin 8 and pin 0 of battery protection chip U2
It is grounded by capacitor C12, the pin 6 of battery protection chip U2 connects the pole VBAT+, and the pin 8 of battery protection chip U2 meets VBAT-
Pole.
Embodiment three:
The present invention is a kind of anti-impacting with high pressure input circuit of mobile power source, principle are as follows: to mobile power source input 5V electricity
Pressure, after RC filter circuit, directly supplies electricity to power management chip U1 by P-MOS transistor Q5, when there is high input voltage
When, by the current limliting of resistance R46, it is given to zener diode D5, since high pressure is more than 5.6V, zener diode D5 is in and reversely leads
Logical state is directly connected with ground, and the one end R44 is in low level at this time, meets triode Q4 conducting and P-MOS transistor Q5 is closed,
USB interface J1 and power management chip U1 is disconnected, prevents high input voltage from burning out power management chip U1.
Example IV:
It please refers to shown in Fig. 2, the present invention is a kind of anti-impacting with high pressure input circuit of mobile power source, subelement and ginseng
Number is as follows:
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (5)
1. a kind of anti-impacting with high pressure input circuit of mobile power source, including USB interface J1, resistance R2, R43, R44, R45, R46,
Capacitor C2, CP6, triode Q4, P-MOS transistor Q5 and zener diode D5, it is characterised in that: the USB interface J1's draws
Foot 1 is grounded by concatenated resistance R2, capacitor C2, and the pin 4,5,6,7 of the USB interface J1 is grounded, the USB interface J1
Pin 2,3 connect sky, the pin 1 of the USB interface J1 is connect with the emitter of triode Q4, and the USB interface J1's draws
Foot 1 is connected by the base stage of concatenated resistance R46, R44 and triode Q4, the zener diode D5 plus earth, described steady
Pressure diode D5 cathode connects between resistance R44 and resistance R46, and the collector of the triode Q4 is grounded by resistance R45, institute
The collector for stating triode Q4 is connect by resistance R43 with the emitter of triode Q4, the emitter and P- of the triode Q4
The source electrode of MOS transistor Q5 connects, and the grid of the P-MOS transistor Q5 is connect with the collector of triode Q4, the P-MOS
The drain electrode of transistor Q5 is grounded by capacitor CP6, and the drain electrode of the P-MOS transistor Q5 exports the end VIN.
2. a kind of anti-impacting with high pressure input circuit of mobile power source according to claim 1, which is characterized in that the USB
Interface J1 is USB-mini interface.
3. a kind of anti-impacting with high pressure input circuit of mobile power source according to claim 1, which is characterized in that three pole
Pipe Q4 is PNP triode.
4. a kind of anti-impacting with high pressure input circuit of mobile power source according to claim 1, which is characterized in that the P-
The model DTS2305A of MOS transistor Q5.
5. a kind of anti-impacting with high pressure input circuit of mobile power source according to claim 1, which is characterized in that the pressure stabilizing
Diode D5 is 5.6V zener diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821163796.2U CN208656446U (en) | 2018-07-23 | 2018-07-23 | A kind of anti-impacting with high pressure input circuit of mobile power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821163796.2U CN208656446U (en) | 2018-07-23 | 2018-07-23 | A kind of anti-impacting with high pressure input circuit of mobile power source |
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| Publication Number | Publication Date |
|---|---|
| CN208656446U true CN208656446U (en) | 2019-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821163796.2U Expired - Fee Related CN208656446U (en) | 2018-07-23 | 2018-07-23 | A kind of anti-impacting with high pressure input circuit of mobile power source |
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| Country | Link |
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| CN (1) | CN208656446U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510982A (en) * | 2020-12-14 | 2021-03-16 | 深圳市有方科技股份有限公司 | Power protection circuit and power protection system |
-
2018
- 2018-07-23 CN CN201821163796.2U patent/CN208656446U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510982A (en) * | 2020-12-14 | 2021-03-16 | 深圳市有方科技股份有限公司 | Power protection circuit and power protection system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190326 Termination date: 20200723 |
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| CF01 | Termination of patent right due to non-payment of annual fee |