CN203243219U - Clutter resistant branching device circuit - Google Patents
Clutter resistant branching device circuit Download PDFInfo
- Publication number
- CN203243219U CN203243219U CN 201320288996 CN201320288996U CN203243219U CN 203243219 U CN203243219 U CN 203243219U CN 201320288996 CN201320288996 CN 201320288996 CN 201320288996 U CN201320288996 U CN 201320288996U CN 203243219 U CN203243219 U CN 203243219U
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- inductance
- electric capacity
- clutter
- capacitor
- transformer
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Abstract
The utility model discloses a clutter resistant branching device circuit, 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 sixth capacitor, a first resistor and a second resistor, 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 clutter resistant branching device circuit has the advantages that a filtering function is added, the capacitors with low capacitance are arranged at the grounding end, and the interference of clutter is effectively removed.
Description
Technical field
The utility model relates to digital cable TV system equipment technical field, particularly a kind of splitter circuit of anti-clutter.
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, its branch end also lacks filter effect, therefore be subject to easily the interference of environmental change, impurity elimination ripple ability, practical effect is undesirable.
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 a kind of splitter circuit of anti-clutter.
(2) technical scheme
For achieving the above object, the splitter circuit of anti-clutter 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, the 6th electric capacity, the first resistance and the second resistance 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, the input of described the first inductance described the first electric capacity of connecting, output described the second electric capacity of connecting, ground connection behind described the first resistance of the common series connection of described the second inductance one end and described the 3rd inductance one end, the described second inductance other end connects described the 4th inductance one end, described the 3rd inductance other end connects described the first inductance input, described the second resistance of connecting between described the 4th inductance other end and the ground wire, described the 5th electric capacity and described the second resistance are in parallel, described the 3rd electric capacity of connecting between described the 6th electric capacity of connecting between described the 4th inductance one end and the ground wire, described the 4th inductance one end and 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, and the capacitance of described the 6th electric capacity is 1PF.
(3) beneficial effect
Compared with prior art, the technical solution of the utility model has the following advantages: increased filter function, be provided with the electric capacity that hangs down capacitance, the interference of effectively removing clutter at earth terminal.
Description of drawings
Fig. 1 is the circuit theory diagrams of the splitter circuit of the utility model anti-clutter.
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 of anti-clutter of the present utility model, by the first transformer T1, the second transformer 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, the 6th capacitor C 6, the first resistance R 1 and the second resistance R 2 form, described the first transformer T1 comprises the first inductance L 1 and the second inductance L 2, described the second transformer T2 comprises the 3rd inductance L 3 and the 4th inductance L 4, the input of described the first inductance L 1 described the first capacitor C 1 of connecting, output described the second capacitor C 2 of connecting, described the first resistance R 1 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, described the second inductance L 2 other ends connect described the 4th inductance L 4 one ends, described the 3rd inductance L 3 other ends connect described the first inductance L 1 input, described the second resistance R 2 of connecting between described the 4th inductance L 4 other ends and the ground wire, described the 5th capacitor C 5 and 2 parallel connections of described the second resistance R, described the 3rd capacitor C 3 of connecting between described the 6th capacitor C 6 of connecting between described the 4th inductance L 4 one ends and the ground wire, described the 4th inductance L 4 one ends and branch end.
Described the first capacitor C 1 is identical with the capacitance of described the second capacitor C 2, makes output and input have identical filter capacity and antijamming capability.
The capacitance of described the 4th capacitor C 4 is 0.5PF, and the capacitance of described the 6th capacitor C 6 is 1PF, is used for filtering the clutter of the non-TV signal frequency range of instantaneous generation.
The splitter circuit of anti-clutter of the present utility model has overcome does not have filter function in the prior art, the defective that causes poor anti jamming capability is provided with filter capacitor at input and output, has increased filter capacity, be provided with the electric capacity that hangs down capacitance, the interference of effectively removing clutter at earth terminal.
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. the splitter circuit of an anti-clutter, 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, the 6th electric capacity, the first resistance and the second resistance 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, the input of described the first inductance described the first electric capacity of connecting, output described the second electric capacity of connecting, ground connection behind described the first resistance of the common series connection of described the second inductance one end and described the 3rd inductance one end, the described second inductance other end connects described the 4th inductance one end, described the 3rd inductance other end connects described the first inductance input, described the second resistance of connecting between described the 4th inductance other end and the ground wire, described the 5th electric capacity and described the second resistance are in parallel, described the 3rd electric capacity of connecting between described the 6th electric capacity of connecting between described the 4th inductance one end and the ground wire, described the 4th inductance one end and branch end.
2. the splitter circuit of anti-clutter 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 of anti-clutter as claimed in claim 1, it is characterized in that: the capacitance of described the 4th electric capacity is 0.5PF, the capacitance of described the 6th electric capacity is 1PF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320288996 CN203243219U (en) | 2013-05-23 | 2013-05-23 | Clutter resistant branching device circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320288996 CN203243219U (en) | 2013-05-23 | 2013-05-23 | Clutter resistant branching device circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203243219U true CN203243219U (en) | 2013-10-16 |
Family
ID=49320473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320288996 Expired - Fee Related CN203243219U (en) | 2013-05-23 | 2013-05-23 | Clutter resistant branching device circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203243219U (en) |
-
2013
- 2013-05-23 CN CN 201320288996 patent/CN203243219U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20200523 |