CN204333948U - Cross electric lightning protection filter circuit - Google Patents
Cross electric lightning protection filter circuit Download PDFInfo
- Publication number
- CN204333948U CN204333948U CN201520054175.0U CN201520054175U CN204333948U CN 204333948 U CN204333948 U CN 204333948U CN 201520054175 U CN201520054175 U CN 201520054175U CN 204333948 U CN204333948 U CN 204333948U
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- China
- Prior art keywords
- inductance
- electric capacity
- discharge tube
- circuit
- lightning protection
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- Expired - Fee Related
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Abstract
The open one of the utility model crosses electric lightning protection filter circuit, comprises power end one, power end two and output, comprises the first to the 8th inductance, the first to the 12 electric capacity, resistance, the first discharge tube and the second discharge tube.Discharge tube of the present utility model can in short time energy short circuit, and discharge high voltage, protect the safety of this circuit and subsequent conditioning circuit, in addition, LC elliptic filter improves the Out-of-band rejection ability of circuit, reduces the loss of circuit.
Description
Technical field
The utility model relates to wired television signal system technical field, and particularly one crosses electric lightning protection filter circuit.
Background technology
The cable TV signal filter circuit of prior art lacks anti-lightning strike, anti-overvoltage ability, if run into thunderbolt weather, the situation that there will be TV signal instability occurs, and even punctures the electric capacity of filter, brings the loss that cannot retrieve.
Utility model content
(1) technical problem that will solve
The purpose of this utility model will overcome above-mentioned shortcoming exactly, aims to provide one and crosses electric lightning protection filter circuit.
(2) technical scheme
For achieving the above object, the electric lightning protection filter circuit of mistake of the present utility model, comprises power end one, power end two and output, comprises the first to the 8th inductance, the first to the 12 electric capacity, resistance, the first discharge tube and the second discharge tube; Described first discharge tube one end ground connection, the other end connects power end one and power end two, and described resistance two ends connect one end of the first discharge tube other end and the second inductance respectively, and described 11 electric capacity is in parallel with a resistor, and described first inductance is in parallel with a resistor; Described 3rd inductance, the 4th inductance, the 5th inductance, the 6th inductance are connected successively with the first electric capacity, the 7th inductance and output, described 3rd electric capacity and described 3rd inductance in parallel, described 5th electric capacity and the 4th inductance in parallel, described 7th electric capacity and the 5th inductance in parallel, described 9th electric capacity and the 6th inductance in parallel; Described 3rd inductance one end connects the other end and second electric capacity one end of described second inductance; Between the described 3rd inductance other end and ground wire, described 4th electric capacity is set, between described 5th inductance one end and ground wire, described 6th electric capacity is set, arrange described 8th electric capacity between the described 5th electric capacity other end and ground wire, described tenth electric capacity is arranged between ground wire and the 6th inductance; Described 8th inductance one end connects output, and the other end connects the 12 electric capacity one end and second discharge tube one end.
Described second discharge tube other end ground connection.
Described 12 electric capacity other end ground connection.
(3) beneficial effect
Compared with prior art; the technical solution of the utility model has the following advantages: when power end one, power end two, output are subject to because thunderbolt produces high-tension impact; discharge tube can in short time energy short circuit; discharge high voltage; protect the safety of this circuit and subsequent conditioning circuit; in addition, LC elliptic filter improves the Out-of-band rejection ability of circuit, reduces the loss of circuit.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the electric lightning protection filter circuit of mistake of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, the electric lightning protection filter circuit of mistake of the present utility model, comprises power end one, power end two and output, comprises the first to the 8th inductance L the 8, first to the 12 electric capacity C12, resistance R1, the first discharge tube G1 and the second discharge tube G2; Described first discharge tube G1 one end ground connection, the other end connects power end one and power end two, described resistance R1 two ends connect one end of the first discharge tube G1 other end and the second inductance L 2 respectively, and described 11 electric capacity C11 is in parallel with resistance R1, and described first inductance L 1 is in parallel with resistance R1; Described 3rd inductance L 3, the 4th inductance L 4, the 5th inductance L 5, the 6th inductance L 6 are connected successively with the first electric capacity C1, the 7th inductance L 7 and output, described 3rd electric capacity C3 and described 3rd inductance L 3 parallel connection, described 5th electric capacity C5 and the parallel connection of the 4th inductance L 4, described 7th electric capacity C7 and the parallel connection of the 5th inductance L 5, described 9th electric capacity C9 and the parallel connection of the 6th inductance L 6; Described 3rd inductance L 3 one end connects the other end and second electric capacity C2 one end of described second inductance L 2; Between described 3rd inductance L 3 other end and ground wire, described 4th electric capacity C4 is set, between described 5th inductance L 5 one end and ground wire, described 6th electric capacity C6 is set, arrange described 8th electric capacity C8 between the described 5th electric capacity C5 other end and ground wire, described tenth electric capacity C10 is arranged between ground wire and the 6th inductance L 6; Described 8th inductance L 8 one end connects output, and the other end connects the 12 electric capacity C12 one end and second discharge tube G2 one end.The present embodiment the 3rd inductance L 3 constitutes elliptic filter to the 6th inductance L 6, second electric capacity C2 to the tenth electric capacity C10, improves Out-of-band rejection ability.
The ground connection of the present embodiment indication is connection 0 current potential.
Described second discharge tube G2 other end ground connection, ensures the adequacy of electric discharge.
Described 12 electric capacity C12 other end ground connection, filters clutter.
When power end one, power end two, output are subject to because thunderbolt produces high-tension impact; discharge tube can in short time energy short circuit; discharge high voltage; protect the safety of this circuit and subsequent conditioning circuit; in addition; LC elliptic filter improves the Out-of-band rejection ability of circuit, reduces the loss of circuit.
In sum, above-mentioned execution mode is not restricted execution mode of the present utility model, and the modification that all those skilled in the art carry out on the basis of flesh and blood of the present utility model or equivalent deformation, all at technology category of the present utility model.
Claims (3)
1. the electric lightning protection filter circuit of mistake, comprises power end one, power end two and output, it is characterized in that: comprise the first to the 8th inductance, the first to the 12 electric capacity, resistance, the first discharge tube and the second discharge tube; Described first discharge tube one end ground connection, the other end connects power end one and power end two, and described resistance two ends connect one end of the first discharge tube other end and the second inductance respectively, and described 11 electric capacity is in parallel with a resistor, and described first inductance is in parallel with a resistor; Described 3rd inductance, the 4th inductance, the 5th inductance, the 6th inductance are connected successively with the first electric capacity, the 7th inductance and output, described 3rd electric capacity and described 3rd inductance in parallel, described 5th electric capacity and the 4th inductance in parallel, described 7th electric capacity and the 5th inductance in parallel, described 9th electric capacity and the 6th inductance in parallel; Described 3rd inductance one end connects the other end and second electric capacity one end of described second inductance; Between the described 3rd inductance other end and ground wire, described 4th electric capacity is set, between described 5th inductance one end and ground wire, described 6th electric capacity is set, arrange described 8th electric capacity between the described 5th electric capacity other end and ground wire, described tenth electric capacity is arranged between ground wire and the 6th inductance; Described 8th inductance one end connects output, and the other end connects the 12 electric capacity one end and second discharge tube one end.
2. the electric lightning protection filter circuit of mistake as claimed in claim 1, is characterized in that: described second discharge tube other end ground connection.
3. the electric lightning protection filter circuit of mistake as claimed in claim 2, is characterized in that: described 12 electric capacity other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520054175.0U CN204333948U (en) | 2015-01-27 | 2015-01-27 | Cross electric lightning protection filter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520054175.0U CN204333948U (en) | 2015-01-27 | 2015-01-27 | Cross electric lightning protection filter circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204333948U true CN204333948U (en) | 2015-05-13 |
Family
ID=53170263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520054175.0U Expired - Fee Related CN204333948U (en) | 2015-01-27 | 2015-01-27 | Cross electric lightning protection filter circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204333948U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108809266A (en) * | 2018-07-11 | 2018-11-13 | 中北大学 | A kind of charge amplifier circuit |
-
2015
- 2015-01-27 CN CN201520054175.0U patent/CN204333948U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108809266A (en) * | 2018-07-11 | 2018-11-13 | 中北大学 | A kind of charge amplifier circuit |
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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 |
Granted publication date: 20150513 Termination date: 20210127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |