CN203278223U - Start-up anti-surge port circuit applied to wireless device - Google Patents
Start-up anti-surge port circuit applied to wireless device Download PDFInfo
- Publication number
- CN203278223U CN203278223U CN 201320338020 CN201320338020U CN203278223U CN 203278223 U CN203278223 U CN 203278223U CN 201320338020 CN201320338020 CN 201320338020 CN 201320338020 U CN201320338020 U CN 201320338020U CN 203278223 U CN203278223 U CN 203278223U
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- wireless device
- gas discharge
- discharge tube
- resistance
- port circuit
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Abstract
The utility model discloses a start-up anti-surge port circuit applied to a wireless device. The start-up anti-surge port circuit is arranged at a port of the wireless device and comprises a pressure-sensitive resistor R1 and a gas discharge tube G. The pressure-sensitive resistor R1 and the gas discharge tube G are in parallel connection, and one end of the pressure-sensitive resistor R1 and the gas discharge tube G in the parallel connection is connected with the wireless device and the other end of the pressure-sensitive resistor R1 and the gas discharge tube G in the parallel connection is grounded. The beneficial effect of the utility model is that: the start-up anti-surge port circuit applied to the wireless device is arranged at the port of the wireless device, so that the anti-surge effect is realized when the wireless device is started.
Description
Technical field
The utility model relates to a kind of wireless device port protector, particularly relates to a kind of anti-start surge port circuit that is applied to wireless device.
Background technology
During the wireless device start, often there is the surge phenomenon port, and the circuit in wireless device is had very large harm, has had a strong impact on the life-span of wireless device.
The utility model content
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, and a kind of anti-start surge port circuit that is applied to wireless device is provided, when solving existing wireless device start, and the harm of the surge that port occurs to the wireless device internal circuit.
The purpose of this utility model is achieved through the following technical solutions: the anti-start surge port circuit that is applied to wireless device, be arranged at the wireless device port place, comprise piezo-resistance R1 and gas discharge tube G, after piezo-resistance R1 and gas discharge tube G parallel connection, one end connects wireless device, other end ground connection.In this circuit, when piezo-resistance R1 becomes large in both end voltage, its resistance can be more and more less, thus with current drain to ground end, and gas discharge tube G is in both end voltage during greater than set point, can become short-circuit condition, thereby leakage current, piezo-resistance are to release lower than gas discharge tube G set point high voltage and current, and guarantee the normal use of wireless device, gas discharge tube G is used for being used for the abrupt release electric current when surge current becomes suddenly large.
Further, also be provided with a RC buffer circuit between the parallel circuits that above-mentioned piezo-resistance R1 and gas discharge pass pipe G are combined into and wireless device, the RC buffer circuit comprises resistance R 2 and the capacitor C of series connection, the other end of resistance R 2 is connected between parallel circuits and wireless device, the other end ground connection of capacitor C, the RC buffer circuit can filter high-frequency signal, and the impact electric current plays cushioning effect.
Further, described gas discharge tube G is in series with an inductance L, and inductance L is positioned at the end that gas discharge tube G connects wireless device, and the impact electric current produces the reverse induction electric current, offsets part and impacts.
The beneficial effects of the utility model are: this device is arranged at the port of wireless device, when wireless device is started shooting, plays the Anti-surging effect.
Description of drawings
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the structural representation of embodiment 2;
Fig. 3 is the structural representation of embodiment 3.
Embodiment
The utility model is described in further detail below in conjunction with embodiment, but structure of the present utility model is not limited only to following examples:
[embodiment 1]
As shown in Figure 1, be applied to the anti-start surge port circuit of wireless device, be arranged at the wireless device port place, comprise piezo-resistance R1 and gas discharge tube G, after piezo-resistance R1 and gas discharge tube G parallel connection, an end connects wireless device, other end ground connection.In this circuit, when piezo-resistance R1 becomes large in both end voltage, its resistance can be more and more less, thus with current drain to ground end, and gas discharge tube G is in both end voltage during greater than set point, can become short-circuit condition, thereby leakage current, piezo-resistance are to release lower than gas discharge tube G set point high voltage and current, and guarantee the normal use of wireless device, gas discharge tube G is used for being used for the abrupt release electric current when surge current becomes suddenly large.
[embodiment 2]
Fig. 2, the present embodiment is on the basis of embodiment 1, close between parallel circuits that pipe G is combined into and wireless device at piezo-resistance R1 and gas discharge and be provided with a RC buffer circuit, the RC buffer circuit comprises resistance R 2 and the capacitor C of series connection, the other end of resistance R 2 is connected between parallel circuits and wireless device, the other end ground connection of capacitor C, the RC buffer circuit can filter high-frequency signal, and the impact electric current plays cushioning effect.
[embodiment 3]
Fig. 3, the present embodiment are on the basis of embodiment 2, and gas discharge tube G is in series with an inductance L, and inductance L is positioned at the end that gas discharge tube G connects wireless device, and the impact electric current produces the reverse induction electric current, offset part and impact.
Claims (3)
1. be applied to the anti-start surge port circuit of wireless device, be arranged at the wireless device port place, it is characterized in that, comprise piezo-resistance R1 and gas discharge tube G, after piezo-resistance R1 and gas discharge tube G parallel connection, an end connects wireless device, other end ground connection.
2. the anti-start surge port circuit that is applied to wireless device according to claim 1, it is characterized in that, also be provided with a RC buffer circuit between the parallel circuits that described piezo-resistance R1 and gas discharge pass pipe G are combined into and wireless device, the RC buffer circuit comprises resistance R 2 and the capacitor C of series connection, the other end of resistance R 2 is connected between parallel circuits and wireless device, the other end ground connection of capacitor C.
3. the anti-start surge port circuit that is applied to wireless device according to claim 1, is characterized in that, described gas discharge tube G is in series with an inductance L, and inductance L is positioned at the end that gas discharge tube G connects wireless device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320338020 CN203278223U (en) | 2013-06-14 | 2013-06-14 | Start-up anti-surge port circuit applied to wireless device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320338020 CN203278223U (en) | 2013-06-14 | 2013-06-14 | Start-up anti-surge port circuit applied to wireless device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203278223U true CN203278223U (en) | 2013-11-06 |
Family
ID=49508551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320338020 Expired - Fee Related CN203278223U (en) | 2013-06-14 | 2013-06-14 | Start-up anti-surge port circuit applied to wireless device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203278223U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337847A (en) * | 2013-06-14 | 2013-10-02 | 成都锐奕信息技术有限公司 | Surge protective circuit for starting of wireless equipment |
-
2013
- 2013-06-14 CN CN 201320338020 patent/CN203278223U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337847A (en) * | 2013-06-14 | 2013-10-02 | 成都锐奕信息技术有限公司 | Surge protective circuit for starting of wireless equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20160614 |