CN203166506U - Anti-lightning network interface circuit, network card, motherboard and computer - Google Patents
Anti-lightning network interface circuit, network card, motherboard and computer Download PDFInfo
- Publication number
- CN203166506U CN203166506U CN 201320185120 CN201320185120U CN203166506U CN 203166506 U CN203166506 U CN 203166506U CN 201320185120 CN201320185120 CN 201320185120 CN 201320185120 U CN201320185120 U CN 201320185120U CN 203166506 U CN203166506 U CN 203166506U
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- Prior art keywords
- network interface
- circuit
- interface circuit
- lightning strike
- lightning
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Abstract
The utility model discloses an anti-lightning network interface circuit, a network card containing the circuit, a motherboard containing the circuit and a computer containing the circuit. The circuit comprises a network interface, at least eight diodes, at least four discharge tubes, at least four resistors and at least one capacitor, wherein the network interface, the at least eight diodes, the at least four discharge tubes, the at least four resistors and the at least one capacitor are connected in sequence. The diodes are TVS transient voltage suppression diodes. The discharge tubes are ceramic electric discharge tubes. According to the anti-lightning network interface circuit, through the clever circuit structure design, high voltage led to the motherboard and the network card through a network cable is released, and the problem that the network card or a network card part of the motherboard is often burned due to frequent thunder and lightning in summer in the south is completely solved.
Description
Technical field
The utility model relates to the anti-lightning strike technical field of electronic circuit, relate in particular to a kind of anti-lightning strike network interface circuit and use the network interface card of this circuit and use this interface circuit mainboard, use the computer of this network interface card and/or this mainboard.
Background technology
In computer security hidden danger, thunderbolt hidden danger is the main arch-criminal of harm computer, and thunderbolt damages mainboard, and the channel difference that enters according to thunder-strike current is divided into holding wire invasion and power line invasion two big classes again, damages and also has nothing in common with each other.Power line invasion mode because wiring all can be taked certain safety measure at present, can well completely cut off thunder-strike current, and protection electrical equipment exempts from thunderbolt and threatens.Therefore the great majority thunderbolt damage all pass through netting twine, telephone wire equisignal line road is invaded, network interface card interface, network card chip and the motherboard circuit etc. of computer are threatened.And the thunderbolt of this form damages, and slight meeting causes network interface card circuit, south bridge partial circuit to damage, and can repair by changing components and parts; Serious meeting burns out PCB and causes not keeping in repair value, directly changes mainboard.
The utility model content
The purpose of this utility model is network interface card and the mainboard of using this interface circuit that a kind of anti-lightning strike network interface circuit is provided and uses this circuit, the computer of using this network interface card and/or this mainboard, thereby solves the foregoing problems that exists in the prior art.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of anti-lightning strike network interface circuit, comprise network interface, at least eight diodes, at least four discharge tubes, at least four resistance and at least one electric capacity, described network interface, described at least eight diodes, described at least four discharge tubes, described at least four resistance and described at least one electric capacity are linked in sequence.
Preferably, described diode suppresses diode for the TVS transient voltage.
Preferably, described discharge tube is ceramic electrical equipment discharge tube.
Preferably, described resistance is metallic resistance.
Preferably, described resistance is 750 Ω 1/8W metallic resistances.
Preferably, described electric capacity is the electric capacity of 0.01Uf.
Preferably, the withstand voltage of described electric capacity is 3KV.
A kind of network interface card comprises described circuit.
A kind of mainboard comprises described circuit.
A kind of computer comprises described network interface card and/or described mainboard.
The beneficial effects of the utility model are:
Anti-lightning strike network interface circuit of the present utility model is by circuit structure design cleverly, will discharge by the high voltage that netting twine imports to mainboard, network interface card; When thunderstorm, discharged the lightning voltage that imports into by netting twine, protected the lattice network safety of network interface card and mainboard, thoroughly solved many thunders and lightnings in southern summer, problem that network interface card or networking-on-motherboard card are partly burnt appears often, avoided the property loss of computer user.
Description of drawings
Fig. 1 is anti-lightning strike network interface circuit structural representation of the present utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is further elaborated.Should be appreciated that embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the utility model discloses a kind of anti-lightning strike network interface circuit, comprise network interface, at least eight diodes, at least four discharge tubes, at least four resistance and at least one electric capacity, described network interface, described at least eight diodes, described at least four discharge tubes, described at least four resistance and described at least one electric capacity are linked in sequence.Described diode suppresses diode for the TVS transient voltage.Described discharge tube is ceramic electrical equipment discharge tube.Described resistance is metallic resistance.Described resistance is 750 Ω 1/8W metallic resistances.Described electric capacity is the electric capacity of 0.01Uf.The withstand voltage of described electric capacity is 3KV.
The invention also discloses a kind of network interface card, comprise anti-lightning strike network interface circuit.
The invention also discloses a kind of mainboard (normally being integrated with the mainboard of network interface card), comprise anti-lightning strike network interface circuit.
The invention also discloses a kind of computer, comprise described network interface card and/or described mainboard.
As shown in Figure 1, the key property of anti-lightning strike network interface circuit of the present utility model:
The resistance of R is 750 Ω 1/8W metallic resistances among the figure
VC1 is 3KV for the 0.01Uf withstand voltage among the figure
CS is ceramic electrical equipment discharge tube among the figure
D is that TVS is that transient voltage suppresses diode among the figure
Pottery electrical equipment discharge tube is gas discharge tube, according to the gas physical principle work of high efficiency arc discharge.From electric angle, gas discharge tube is exactly pressure sensitive switch.In case the voltage that is applied on the discharge tube surpasses puncture voltage, the inherent sealing of nanosecond region of discharge forms electric arc.High surge current disposal ability and the arc voltage that almost is independent of electric current carry out short circuit to overvoltage.When the discharge end, discharge tube extinguishes, and hundreds of megohms are returned in internal resistance immediately.Gas discharge tube is close to all requirements of perfectly satisfying protective element.It can be limited in overvoltage in the number range of permission reliably, and under normal condition of work, because high insulation resistance and low capacitance characteristic, discharge tube to shielded system in fact any influence does not take place.
Dc breakdown voltage 70...5000V
Impulsive discharge electric current (8/20 μ s) maximum 100kA
Impulsive discharge electric current (10/350 μ s) maximum 100kA
Power-frequency discharge electric current (1s) maximum 20A
Power-frequency discharge electric current (0.2s) maximum 300A
Arc voltage maximum 35V
Insulation resistance minimum value 1G Ω
Electric capacity minimum value 0.5pF
TVS is that transient voltage suppresses diode, and its circuit symbol is identical with common voltage stabilizing didoe.Its forward characteristic is identical with general-purpose diode; Reverse characteristic is typical PN junction snowslide device.Under the effect of transient peak pulse current, flow through the electric current of TVS, when rising to IR by original reverse leakage current ID, the voltage that its two poles of the earth present rises to puncture voltage VBR by specified reverse shutoff voltage VWM, and TVS is breakdown.Along with the appearance of peak pulse electric current, the electric current that flows through TVS reaches peak pulse electric current I PP.Voltage at its two poles of the earth is clamped to below the predetermined maximum clamping voltage.Thereafter, along with pulse current is pressed exponential damping, the voltage at TVS the two poles of the earth also constantly descends, and returns to initial state at last.The surge pulse power that TVS inhibition that Here it is may occur, the whole process of protection electronic devices and components.
By adopting the disclosed technique scheme of the utility model, obtained following useful effect:
Anti-lightning strike network interface circuit of the present utility model is by circuit structure design cleverly, will discharge by the high voltage that netting twine imports to mainboard, network interface card; When thunderstorm, discharged the lightning voltage that imports into by netting twine, protected the lattice network safety of network interface card and mainboard, thoroughly solved many thunders and lightnings in southern summer, problem that network interface card or networking-on-motherboard card are partly burnt appears often, avoided the property loss of computer user.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be looked protection range of the present utility model.
Claims (10)
1. anti-lightning strike network interface circuit, it is characterized in that, comprise network interface, at least eight diodes, at least four discharge tubes, at least four resistance and at least one electric capacity, described network interface, described at least eight diodes, described at least four discharge tubes, described at least four resistance and described at least one electric capacity are linked in sequence.
2. anti-lightning strike network interface circuit according to claim 1 is characterized in that, described diode suppresses diode for the TVS transient voltage.
3. anti-lightning strike network interface circuit according to claim 1 is characterized in that, described discharge tube is ceramic electrical equipment discharge tube.
4. anti-lightning strike network interface circuit according to claim 1 is characterized in that, described resistance is metallic resistance.
5. anti-lightning strike network interface circuit according to claim 4 is characterized in that, described resistance is the 750Q1/8W metallic resistance.
6. anti-lightning strike network interface circuit according to claim 1 is characterized in that, described electric capacity is the electric capacity of 0.01Uf.
7. anti-lightning strike network interface circuit according to claim 6 is characterized in that, the withstand voltage of described electric capacity is 3KV.
8. a network interface card is characterized in that, comprises the arbitrary described circuit of claim 1-7.
9. a mainboard is characterized in that, comprises the arbitrary described circuit of claim 1-7.
10. a computer is characterized in that, comprises the described network interface card of claim 8 and/or the described mainboard of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320185120 CN203166506U (en) | 2013-04-12 | 2013-04-12 | Anti-lightning network interface circuit, network card, motherboard and computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320185120 CN203166506U (en) | 2013-04-12 | 2013-04-12 | Anti-lightning network interface circuit, network card, motherboard and computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203166506U true CN203166506U (en) | 2013-08-28 |
Family
ID=49027666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320185120 Expired - Fee Related CN203166506U (en) | 2013-04-12 | 2013-04-12 | Anti-lightning network interface circuit, network card, motherboard and computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203166506U (en) |
-
2013
- 2013-04-12 CN CN 201320185120 patent/CN203166506U/en not_active Expired - Fee Related
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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: 20130828 Termination date: 20140412 |