CN203206325U - Mobile phone having lightning protection function - Google Patents
Mobile phone having lightning protection function Download PDFInfo
- Publication number
- CN203206325U CN203206325U CN 201320221427 CN201320221427U CN203206325U CN 203206325 U CN203206325 U CN 203206325U CN 201320221427 CN201320221427 CN 201320221427 CN 201320221427 U CN201320221427 U CN 201320221427U CN 203206325 U CN203206325 U CN 203206325U
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- effect transistor
- field effect
- type field
- mobile phone
- lightning protection
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Abstract
The utility model discloses a mobile phone having a lightning protection function, and the mobile phone comprises an IO port. The IO port is connected with a lightning protection circuit; the lightning protection circuit includes a resistor, a P-type field effect transistor, an N-type field effect transistor and a zener diode; the anode of the zener diode is connected onto the source of the N-type field effect transistor, and the cathode of the zener diode is connected to a VDD; the source and the grid of the N-type field effect transistor are connected and are both grounded; the drain of the N-type field effect transistor is connected to a drain of the P-type field effect transistor; the source and the grid of the P-type field effect transistor are connected and are both connected to the VDD; the zener diode is connected in parallel with a capacitor; and one end of the resistor is connected to the drain of the P-type field effect transistor while the other end of the resistor is connected to the IO port. The mobile phone having the lightning protection function has the advantages of having the lightning protection function and being capable of effectively protecting the internal circuit of mobile phone from lightning strikes.
Description
Technical field
The utility model relates to a kind of mobile phone, relates to a kind of mobile phone with lightning protected function in particular.
Background technology
Mobile phone is as the important tool of people's contact and affection exchange, and its popularity rate is increasing, and almost staff is one.Mobile phone charging interface and the data transmission interface of present most of mobile phones all are same interface.When people like rest at night mostly mobile phone is charged.In summer, thunderstorm multiple season, mobile phone is connected on the power supply always, and it is easy to suffer the attack of thunder and lightning, and this will bring serious loss to people's property.
The utility model content
The utility model provides a kind of mobile phone with lightning protected function, and it has lightning protected function, can effectively protect the internal circuit of mobile phone to avoid the destruction of thunder and lightning.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of mobile phone with lightning protected function; it comprises the IO port of mobile phone; described IO port is connected with lightning protection circuit; described lightning protection circuit comprises resistance; P type field effect transistor; N-type field effect transistor and voltage stabilizing didoe; the positive pole of described voltage stabilizing didoe is connected on the source electrode of N-type field effect transistor and negative pole is connected on the VDD; the source electrode of described N-type field effect transistor links to each other with grid and while ground connection; the drain electrode of described N-type field effect transistor links to each other with the drain electrode of P type field effect transistor; the source electrode of described P type field effect transistor is connected on its grid and is connected on the VDD simultaneously; described voltage stabilizing didoe and an electric capacity are in parallel; one end of described resistance is connected in the drain electrode of P type field effect transistor, and the other end is connected on the IO port.
Further technical scheme is:
The resistance of described resistance is 3000 ohm.
Described P type field effect transistor and N-type field effect transistor are A03145.
In the utility model, an end of resistance is connected on the OI port of mobile phone, and the other end links to each other with the internal circuit of mobile phone, and this end is connected in the drain electrode of P type field effect transistor simultaneously.When thunder and lightning acted on the IO port of mobile phone, the effect of its current limliting of resistance avoided the excessive internal circuit to mobile phone of electric current to damage.P type field effect transistor, N-type field effect transistor and voltage stabilizing didoe provide many leadage circuits to thunder and lightning, and voltage stabilizing didoe is used for providing protection to P type field effect transistor, N-type field effect transistor, the interference of circuit that the acting as of electric capacity prevented the power supply degree.
Compared with prior art, the beneficial effects of the utility model are:
1, electric capacity in parallel on the resistance of the present utility model can effectively avoid power supply to the interference of circuit.
2, resistance R of the present utility model plays metering function, can prevent effectively that electric current is to the destruction of mobile phone internal circuit.
3, the utility model can effectively be released thunder and lightning, and with the internal circuit of protection mobile phone, and this circuit structure is simple, is convenient to integrated.
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]
A kind of mobile phone with lightning protected function as shown in Figure 1; it comprises the IO port of mobile phone; described IO port is connected with lightning protection circuit; described lightning protection circuit comprises resistance; P type field effect transistor; N-type field effect transistor and voltage stabilizing didoe; the positive pole of described voltage stabilizing didoe is connected on the source electrode of N-type field effect transistor and negative pole is connected on the VDD; the source electrode of described N-type field effect transistor links to each other with grid and while ground connection; the drain electrode of described N-type field effect transistor links to each other with the drain electrode of P type field effect transistor; the source electrode of described P type field effect transistor is connected on its grid and is connected on the VDD simultaneously; described voltage stabilizing didoe and an electric capacity are in parallel; one end of described resistance is connected in the drain electrode of P type field effect transistor, and the other end is connected on the IO port.
The resistance of described resistance is 3000 ohm.
Described P type field effect transistor and N-type field effect transistor are A03145.
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 (3)
1. mobile phone with lightning protected function; it comprises the IO port of mobile phone; it is characterized in that: described IO port is connected with lightning protection circuit; described lightning protection circuit comprises resistance; P type field effect transistor; N-type field effect transistor and voltage stabilizing didoe; the positive pole of described voltage stabilizing didoe is connected on the source electrode of N-type field effect transistor and negative pole is connected on the VDD; the source electrode of described N-type field effect transistor links to each other with grid and while ground connection; the drain electrode of described N-type field effect transistor links to each other with the drain electrode of P type field effect transistor; the source electrode of described P type field effect transistor is connected on its grid and is connected on the VDD simultaneously; described voltage stabilizing didoe and an electric capacity are in parallel; one end of described resistance is connected in the drain electrode of P type field effect transistor, and the other end is connected on the IO port.
2. a kind of mobile phone with lightning protected function according to claim 1, it is characterized in that: the resistance of described resistance is 3000 ohm.
3. a kind of mobile phone with lightning protected function according to claim 1, it is characterized in that: described P type field effect transistor and N-type field effect transistor are A03145.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320221427 CN203206325U (en) | 2013-04-27 | 2013-04-27 | Mobile phone having lightning protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320221427 CN203206325U (en) | 2013-04-27 | 2013-04-27 | Mobile phone having lightning protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203206325U true CN203206325U (en) | 2013-09-18 |
Family
ID=49150379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320221427 Expired - Fee Related CN203206325U (en) | 2013-04-27 | 2013-04-27 | Mobile phone having lightning protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203206325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269390A (en) * | 2013-04-27 | 2013-08-28 | 成都市宏山科技有限公司 | Mobile phone with anti-lightning function |
-
2013
- 2013-04-27 CN CN 201320221427 patent/CN203206325U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269390A (en) * | 2013-04-27 | 2013-08-28 | 成都市宏山科技有限公司 | Mobile phone with anti-lightning function |
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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: 20130918 Termination date: 20140427 |