CN203233159U - MP3 player with electrostatic protection and surge protection - Google Patents
MP3 player with electrostatic protection and surge protection Download PDFInfo
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- CN203233159U CN203233159U CN 201320261625 CN201320261625U CN203233159U CN 203233159 U CN203233159 U CN 203233159U CN 201320261625 CN201320261625 CN 201320261625 CN 201320261625 U CN201320261625 U CN 201320261625U CN 203233159 U CN203233159 U CN 203233159U
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Abstract
The utility model discloses an MP3 player with electrostatic protection and surge protection, and the MP3 player comprises an electrostatic discharge circuit and a surge discharge circuit. The electrostatic discharge circuit comprises a triode T1, a triode T2, and a diode D3. The base electrode of the triode T2 is connected with the emitter electrode of the triode T2 and the positive electrode of the diode D3, and also grounded. The base electrode of the triode T1 is connected with the emitter electrode of the triode T1 and the negative electrode of the diode D3. The collector electrode of the triode T1 is connected with the collector electrode of the triode T2. The surge discharge circuit comprises a diode D1, a diode D2, a resistor R2, and a capacitor C2. The capacitor C2 is in series with the diode D1. The positive electrode of the diode D2 is connected with the positive electrode of the diode D1 and also grounded. The resistor R2 is connected between the negative electrode of the diode D2 and the negative electrode of the diode D1. The MP3 player is advantageous by having a dual function of electrostatic protection and surge protection and a simple structure of a circuit, and being convenient to integrate inside a small-type electronic product.
Description
Technical field
The utility model relates to a kind of MP3 player, relates to a kind of MP3 player with static and surge protection in particular.
Background technology
The MP3 player is as music-lover's true love.The music-lover generally is being with the MP3 player everywhere at any time.Because the MP3 player directly contacts with the people, in the season of this drying in winter, human body produces static through regular meeting.Because the electronic devices and components of MP3 player inside are more, when human body produced static, its components and parts to MP3 player inside had destruction.When serious, directly damage the MP3 player, it can not be worked.And the MP3 player can produce surge in a flash start, and surge also is sizable to the destructive power of the electronic devices and components of MP3 inside.Existing electrostatic discharge protection circuit, its circuit structure complexity is not suitable for the use of the electronic product of this slimline of MP3 player.And existing MP3 does not have static and surge duplicate protection.
The utility model content
The utility model provides a kind of MP3 player with static and surge protection, and it has static and surge double protection functions, and its circuit structure is simple, is convenient to be integrated in slimline electronic product inside.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
MP3 player with the protection of static and surge, it comprises static leakage circuit and surge leadage circuit, described static leakage circuit comprises triode T1, triode T2 and diode D3, the base stage of described triode T2 links to each other with the positive pole of emitter and diode D3 and while ground connection simultaneously, the base stage of described triode T1 links to each other with the negative pole of its emitter with diode D3 simultaneously, the collector electrode of described triode T1 is connected on the collector electrode of triode T2, described surge leadage circuit comprises diode D1, diode D2, resistance R 2 and capacitor C 2, described capacitor C 2 is in parallel with diode D1, the positive pole of described diode D2 links to each other with the positive pole of diode D1 and while ground connection, is connected with resistance R 2 between the negative pole of the negative pole of described diode D2 and diode D1.
Further technical scheme is:
Also be connected with resistance R 1 on the described static leakage circuit, an end of described resistance R 1 is connected on the collector electrode of triode T1.
Described static leakage circuit also comprises capacitor C 1, and described capacitor C 1 is in parallel with diode D3.
Described triode T1 is the positive-negative-positive triode.
Described triode T2 is NPN type triode.
The utility model is connected on the power interface of MP3 player, and the effect of resistance R 1 its current limliting avoids the excessive internal electronic component to MP3 of electric current to damage.When generation of static electricity, triode T1, triode T2 and diode D3 fall electrostatic leakage according to many paths of releasing that electrically provide respectively of static.Capacitor C 1 can prevent that power supply perturbation signal is to the influence of circuit.The surge path of releasing provides secondary to release, 2 cushioning effects of capacitor C, and conducting was released when diode D1 increased at voltage, as it is clean not release, and then releases more again at the distance internal circuit by resistance R 2 and diode D2, surge was released fully guaranteeing.
Compared with prior art, the beneficial effects of the utility model are:
1, connects this circuit on the power interface of MP3 player, make the MP3 player have static and surge double protection functions, avoid static and surge that MP3 player internal circuit is damaged.
2, circuit of the present utility model comprises electronic devices and components in 4, and its circuit structure is simple, is convenient to be integrated in the electronic product inside of slimline.
3, the cost of electronic devices and components of the present utility model is lower, is convenient to large-scale production.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.Execution mode of the present utility model includes but not limited to the following example.
[embodiment]
The MP3 player with static and surge protection as shown in Figure 1, it comprises static leakage circuit and surge leadage circuit, described static leakage circuit comprises triode T1, triode T2 and diode D3, the base stage of described triode T2 links to each other with the positive pole of emitter and diode D3 and while ground connection simultaneously, the base stage of described triode T1 links to each other with the negative pole of its emitter with diode D3 simultaneously, the collector electrode of described triode T1 is connected on the collector electrode of triode T2, described surge leadage circuit comprises diode D1, diode D2, resistance R 2 and capacitor C 2, described capacitor C 2 is in parallel with diode D1, the positive pole of described diode D2 links to each other with the positive pole of diode D1 and while ground connection, is connected with resistance R 2 between the negative pole of the negative pole of described diode D2 and diode D1.
Also be connected with resistance R 1 on the described static leakage circuit, an end of described resistance R 1 is connected on the collector electrode of triode T1.
Described static leakage circuit also comprises capacitor C 1, and described capacitor C 1 is in parallel with diode D3.
Described triode T1 is the positive-negative-positive triode.
Described triode T2 is NPN type triode.
Be embodiment of the present utility model as mentioned above.The utility model is not limited to above-mentioned execution mode, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, all fall within the protection range of the present utility model.
Claims (5)
1. the MP3 player that has the protection of static and surge, it is characterized in that: it comprises static leakage circuit and surge leadage circuit, described static leakage circuit comprises triode T1, triode T2 and diode D3, the base stage of described triode T2 links to each other with the positive pole of emitter and diode D3 and while ground connection simultaneously, the base stage of described triode T1 links to each other with the negative pole of its emitter with diode D3 simultaneously, the collector electrode of described triode T1 is connected on the collector electrode of triode T2, described surge leadage circuit comprises diode D1, diode D2, resistance R 2 and capacitor C 2, described capacitor C 2 is in parallel with diode D1, the positive pole of described diode D2 links to each other with the positive pole of diode D1 and while ground connection, is connected with resistance R 2 between the negative pole of the negative pole of described diode D2 and diode D1.
2. the MP3 player with the protection of static and surge according to claim 1, it is characterized in that: also be connected with resistance R 1 on the described static leakage circuit, an end of described resistance R 1 is connected on the collector electrode of triode T1.
3. the MP3 player with the protection of static and surge according to claim 1, it is characterized in that: described static leakage circuit also comprises capacitor C 1, described capacitor C 1 is in parallel with diode D3.
4. the MP3 player with the protection of static and surge according to claim 1, it is characterized in that: described triode T1 is the positive-negative-positive triode.
5. the MP3 player with the protection of static and surge according to claim 4, it is characterized in that: described triode T2 is NPN type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320261625 CN203233159U (en) | 2013-05-15 | 2013-05-15 | MP3 player with electrostatic protection and surge protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320261625 CN203233159U (en) | 2013-05-15 | 2013-05-15 | MP3 player with electrostatic protection and surge protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203233159U true CN203233159U (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320261625 Expired - Fee Related CN203233159U (en) | 2013-05-15 | 2013-05-15 | MP3 player with electrostatic protection and surge protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203233159U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248028A (en) * | 2013-05-15 | 2013-08-14 | 成都市宏山科技有限公司 | MP3 player with electrostatic and surge protection functions |
| CN103683256A (en) * | 2013-11-28 | 2014-03-26 | 成都市宏山科技有限公司 | Protecting circuit applicable to DVD (digital video disk) player |
| CN107579511A (en) * | 2017-10-19 | 2018-01-12 | 广东欧珀移动通信有限公司 | USB protection circuits and mobile terminal |
| CN108281990A (en) * | 2017-01-05 | 2018-07-13 | 北京小米移动软件有限公司 | Electronic equipment |
-
2013
- 2013-05-15 CN CN 201320261625 patent/CN203233159U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248028A (en) * | 2013-05-15 | 2013-08-14 | 成都市宏山科技有限公司 | MP3 player with electrostatic and surge protection functions |
| CN103683256A (en) * | 2013-11-28 | 2014-03-26 | 成都市宏山科技有限公司 | Protecting circuit applicable to DVD (digital video disk) player |
| CN103683256B (en) * | 2013-11-28 | 2016-05-11 | 成都市宏山科技有限公司 | Be suitable for the holding circuit of DVD player |
| CN108281990A (en) * | 2017-01-05 | 2018-07-13 | 北京小米移动软件有限公司 | Electronic equipment |
| CN108281990B (en) * | 2017-01-05 | 2021-08-03 | 北京小米移动软件有限公司 | Electronic device |
| CN107579511A (en) * | 2017-10-19 | 2018-01-12 | 广东欧珀移动通信有限公司 | USB protection circuits and mobile terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20140515 |