CN103248028A - MP3 player with electrostatic and surge protection functions - Google Patents
MP3 player with electrostatic and surge protection functions Download PDFInfo
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- CN103248028A CN103248028A CN2013101775671A CN201310177567A CN103248028A CN 103248028 A CN103248028 A CN 103248028A CN 2013101775671 A CN2013101775671 A CN 2013101775671A CN 201310177567 A CN201310177567 A CN 201310177567A CN 103248028 A CN103248028 A CN 103248028A
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Abstract
The invention discloses an MP3 player with electrostatic and surge protection functions. The MP3 player comprises an electrostatic bleeder circuit and a surge bleeder circuit, wherein the electrostatic bleeder circuit comprises a triode T1, a triode T2 and a diode D3, the base electrode of the triode T2 is simultaneously connected with the emitting electrode and the positive pole of the diode D3 and is grounded, the base electrode of the triode T1 is simultaneously connected with the emitting electrode and the negative pole of the diode D3, and the collecting electrode of the triode T1 is connected to that of the triode T2; and the surge bleeder circuit comprises a diode D1, a diode D2, a resistor R2 and a capacitor C2, the capacitor C2 and the diode D1 are connected in parallel, the positive pole of the diode D2 and that of the diode D1 are connected and grounded, and the resistor R 2 is connected between the negative poles of both the diode D2 and the diode D1. The MP3 player has the advantages that the electrostatic and surge protection functions are achieved, the circuit structure is simple and the MP3 player can be conveniently integrated in a compact electronic product.
Description
Technical field
The present invention relates to a kind of MP3 player, relate to a kind of MP3 player with static and surge double protection function 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.
Summary of the invention
The invention provides a kind of MP3 player with static and surge double protection function, 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 present invention by the following technical solutions:
MP3 player with static and surge double protection function, 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 present invention 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 invention has the beneficial effects as follows:
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 invention 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 invention is lower, is convenient to large-scale production.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.Embodiments of the present invention include but not limited to the following example.
[embodiment]
The MP3 player with static and surge double protection function 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 embodiments of the invention as mentioned above.The present invention is not limited to above-mentioned execution mode, and anyone should learn the structural change of making under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, all falls within protection scope of the present invention.
Claims (5)
1. the MP3 player that has static and surge double protection function, 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 static and surge double protection function 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 static and surge double protection function 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 static and surge double protection function according to claim 1, it is characterized in that: described triode T1 is the positive-negative-positive triode.
5. the MP3 player with static and surge double protection function 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 |
|---|---|---|---|
| CN2013101775671A CN103248028A (en) | 2013-05-15 | 2013-05-15 | MP3 player with electrostatic and surge protection functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101775671A CN103248028A (en) | 2013-05-15 | 2013-05-15 | MP3 player with electrostatic and surge protection functions |
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| Publication Number | Publication Date |
|---|---|
| CN103248028A true CN103248028A (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2013101775671A Pending CN103248028A (en) | 2013-05-15 | 2013-05-15 | MP3 player with electrostatic and surge protection functions |
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| CN (1) | CN103248028A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114759536A (en) * | 2022-05-09 | 2022-07-15 | 江南大学 | Ultra-low voltage electrostatic surge full-chip protection circuit of low-noise amplifier |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5159518A (en) * | 1990-01-17 | 1992-10-27 | Vlsi Technology, Inc. | Input protection circuit for CMOS devices |
| US5436183A (en) * | 1990-04-17 | 1995-07-25 | National Semiconductor Corporation | Electrostatic discharge protection transistor element fabrication process |
| US5740000A (en) * | 1996-09-30 | 1998-04-14 | Hewlett-Packard Co. | ESD protection system for an integrated circuit with multiple power supply networks |
| KR20010066333A (en) * | 1999-12-31 | 2001-07-11 | 박종섭 | Elector static discharge protection circuit |
| CN1674389A (en) * | 2004-03-23 | 2005-09-28 | 华为技术有限公司 | Signal interface protective circuit |
| CN2790007Y (en) * | 2005-04-30 | 2006-06-21 | 张雷 | GPS active antenna interface antisurging shock device |
| CN203233159U (en) * | 2013-05-15 | 2013-10-09 | 成都市宏山科技有限公司 | MP3 player with electrostatic protection and surge protection |
-
2013
- 2013-05-15 CN CN2013101775671A patent/CN103248028A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5159518A (en) * | 1990-01-17 | 1992-10-27 | Vlsi Technology, Inc. | Input protection circuit for CMOS devices |
| US5436183A (en) * | 1990-04-17 | 1995-07-25 | National Semiconductor Corporation | Electrostatic discharge protection transistor element fabrication process |
| US5740000A (en) * | 1996-09-30 | 1998-04-14 | Hewlett-Packard Co. | ESD protection system for an integrated circuit with multiple power supply networks |
| KR20010066333A (en) * | 1999-12-31 | 2001-07-11 | 박종섭 | Elector static discharge protection circuit |
| CN1674389A (en) * | 2004-03-23 | 2005-09-28 | 华为技术有限公司 | Signal interface protective circuit |
| CN2790007Y (en) * | 2005-04-30 | 2006-06-21 | 张雷 | GPS active antenna interface antisurging shock device |
| CN203233159U (en) * | 2013-05-15 | 2013-10-09 | 成都市宏山科技有限公司 | MP3 player with electrostatic protection and surge protection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114759536A (en) * | 2022-05-09 | 2022-07-15 | 江南大学 | Ultra-low voltage electrostatic surge full-chip protection circuit of low-noise amplifier |
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Application publication date: 20130814 |