CN203243037U - Branching device circuit having lightning protection and filtering effect simultaneously - Google Patents
Branching device circuit having lightning protection and filtering effect simultaneously Download PDFInfo
- Publication number
- CN203243037U CN203243037U CN2013202889139U CN201320288913U CN203243037U CN 203243037 U CN203243037 U CN 203243037U CN 2013202889139 U CN2013202889139 U CN 2013202889139U CN 201320288913 U CN201320288913 U CN 201320288913U CN 203243037 U CN203243037 U CN 203243037U
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- electric capacity
- inductance
- lightning protection
- capacitor
- transformer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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- Filters And Equalizers (AREA)
Abstract
The utility model discloses a branching device circuit having lightning protection and filtering effects simultaneously, which is composed of a first transformer, a second transformer, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a resistor and a transient voltage suppression diode, wherein the first transformer comprises a first inductor and a second inductor, and the second transformer comprises a third inductor and a fourth inductor. The branching device circuit has the advantages that a filtering function is added, the transient voltage suppression diode is additionally arranged, and the electricity prevention and lightning protection effects are improved.
Description
Technical field
The utility model includes the cable TV system equipment technical field, particularly a kind of splitter circuit that has simultaneously lightning protection and filter effect.
Background technology
The splitter circuit output end of prior art and input be direct connection transformer inductance often, and therefore, this splitter filter effect is poor, lacks lightning-protection electric hand section, and when causing running into thunder and lightning weather, TV signal will be interfered.
The utility model content
The technical problem that (one) will solve
The purpose of this utility model will overcome above-mentioned shortcoming exactly, aims to provide the splitter circuit that has lightning protection and filter effect a kind of the time.
(2) technical scheme
For achieving the above object, the splitter circuit that has simultaneously lightning protection and filter effect of the present utility model, by the first transformer, the second transformer, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, resistance and transient voltage suppressor diode form, described the first transformer comprises the first inductance and the second inductance, described the second transformer comprises the 3rd inductance and the 4th inductance, a connect end of described the first electric capacity of one end of described the first inductance, the other end of described the first electric capacity connects input, and the two ends of described transient voltage suppressor diode connect respectively the other end and the ground wire of described the first electric capacity, the output of described the first inductance described the second electric capacity of connecting, ground connection behind described the 5th electric capacity of the common series connection of described the second inductance one end and described the 3rd inductance one end, ground connection behind the described resistance of the common series connection of one end of the other end of described the second inductance and described the 4th inductance, described the 4th electric capacity is in parallel with described resistance, described the 3rd electric capacity of connecting between described the 4th inductance other end and the branch end.
Further, described the first electric capacity is identical with the capacitance of described the second electric capacity.
Further, the capacitance of described the 4th electric capacity is 0.5PF.
(3) beneficial effect
Compared with prior art, the technical solution of the utility model has the following advantages: increased filter capacity, and increased transient voltage suppressor diode, improved anti-electric, lightning protection effect.
Description of drawings
Fig. 1 is the circuit theory diagrams that the utility model has the splitter circuit of lightning protection and filter effect simultaneously.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, the splitter circuit that has simultaneously lightning protection and filter effect of the present utility model, by the first voltage device T1, second voltage device T2, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the 5th capacitor C 5, resistance R 1 and transient voltage suppressor diode D1 form, described the first voltage device T1 comprises the first inductance L 1 and the second inductance L 2, described second voltage device T2 comprises the 3rd inductance L 3 and the 4th inductance L 4, a connect end of described the first capacitor C 1 of one end of described the first inductance L 1, the other end of described the first capacitor C 1 connects input, and the two ends of described transient voltage suppressor diode D1 connect respectively the other end and the ground wire of described the first capacitor C 1, the output of described the first inductance L 1 described the second capacitor C 2 of connecting, described the 5th capacitor C 5 rear ground connection of the common series connection of described the second inductance L 2 one ends and described the 3rd inductance L 3 one ends, the described resistance R 1 rear ground connection of the common series connection of one end of the other end of described the second inductance L 2 and described the 4th inductance L 4, described the 4th capacitor C 4 is in parallel with described resistance R 1, described the 3rd capacitor C 3 of connecting between described the 4th inductance L 4 other ends and the branch end.
Described the first capacitor C 1 is identical with the capacitance of described the second capacitor C 2, makes output and input possess identical filter effect.
The capacitance of described the 4th capacitor C 4 is 0.5PF, effectively filters out the ripple of non-TV signal frequency.
The splitter circuit that has simultaneously lightning protection and filter effect of the present utility model overcomes the splitter circuit filtering of prior art, anti-electric, defective that lightning protection effect is poor, in input, output, branch end filter capacitor is set, improve filtering performance, when utilizing transient voltage suppressor diode to be subject to reverse transient state high energy impact events, can be within the extreme time high impedance of its two interpolar be become low-impedance characteristic, the surge power of absorption up to thousands of watts is the effective ways that overcome effects of lightning.
In sum, above-mentioned execution mode is not to be 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 are all at technology category of the present utility model.
Claims (3)
1. splitter circuit that has simultaneously lightning protection and filter effect, it is characterized in that: by the first transformer, the second transformer, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, resistance and transient voltage suppressor diode form, described the first transformer comprises the first inductance and the second inductance, described the second transformer comprises the 3rd inductance and the 4th inductance, a connect end of described the first electric capacity of one end of described the first inductance, the other end of described the first electric capacity connects input, and the two ends of described transient voltage suppressor diode connect respectively the other end and the ground wire of described the first electric capacity, the output of described the first inductance described the second electric capacity of connecting, ground connection behind described the 5th electric capacity of the common series connection of described the second inductance one end and described the 3rd inductance one end, ground connection behind the described resistance of the common series connection of one end of the other end of described the second inductance and described the 4th inductance, described the 4th electric capacity is in parallel with described resistance, described the 3rd electric capacity of connecting between described the 4th inductance other end and the branch end.
2. the splitter circuit that has simultaneously lightning protection and filter effect as claimed in claim 1, it is characterized in that: described the first electric capacity is identical with the capacitance of described the second electric capacity.
3. the splitter circuit that has simultaneously lightning protection and filter effect as claimed in claim 1, it is characterized in that: the capacitance of described the 4th electric capacity is 0.5PF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202889139U CN203243037U (en) | 2013-05-23 | 2013-05-23 | Branching device circuit having lightning protection and filtering effect simultaneously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202889139U CN203243037U (en) | 2013-05-23 | 2013-05-23 | Branching device circuit having lightning protection and filtering effect simultaneously |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203243037U true CN203243037U (en) | 2013-10-16 |
Family
ID=49320296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202889139U Expired - Fee Related CN203243037U (en) | 2013-05-23 | 2013-05-23 | Branching device circuit having lightning protection and filtering effect simultaneously |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203243037U (en) |
-
2013
- 2013-05-23 CN CN2013202889139U patent/CN203243037U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20200523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |