CN204615629U - A kind of multi-source power supply filter - Google Patents
A kind of multi-source power supply filter Download PDFInfo
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- CN204615629U CN204615629U CN201520326595.XU CN201520326595U CN204615629U CN 204615629 U CN204615629 U CN 204615629U CN 201520326595 U CN201520326595 U CN 201520326595U CN 204615629 U CN204615629 U CN 204615629U
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- electric capacity
- filter
- power supply
- parallel
- source power
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The utility model discloses a kind of multi-source power supply filter, comprise filtering body, the ac power input end be arranged on filtering body, ac power output, described filtering body is made up of insulation crust and many LC filter circuits in parallel, described LC filter circuit signal input part is connected with ac power input end, and LC filter circuit signal output part is connected with load lighting apparatus with by ac power output.The utility model filter traction many lighting apparatus, reduce the use amount of filter.
Description
Technical field
The utility model relates to a kind of electronic device, particularly relates to a kind of multi-source power supply filter.
Background technology
Filter, being a kind of device being used for eliminating jamming incoherent signal, obtaining pure electric current by inputing or outputing through filtration.Frequency beyond the frequency of characteristic frequency or this frequency being carried out to the circuit of effective filtering, is exactly filter, and its function obtains a characteristic frequency exactly or eliminates a characteristic frequency.Filter generally has two ports, input signal, an output signal.
Conventional power source filter generally only has two inlet wires and two outlets, and it has the L level and N level of specifying, if connect anti-, can produce a large amount of electric leakages, device damage.
If need multiple power supplies to enter room in shielded enclosure, necessary each Lu Peiyi power-supply filter, the number used like this increases, and cost increases.
Summary of the invention
The utility model, for above-mentioned the deficiencies in the prior art, proposes a kind of multi-source power supply filter, and this utility model can control multiple illuminator by a power-supply filter.
The utility model is achieved by the following technical solution: a kind of multi-source power supply filter, comprise filtering body, the ac power input end be arranged on filtering body, ac power output, described filtering body is made up of insulation crust and many LC filter circuits in parallel, described LC filter circuit signal input part is connected with ac power input end, and LC filter circuit signal output part is connected with load lighting apparatus by ac power output.
Further, described LC filter circuit comprises the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4 in parallel, and is connected on the inductance L between the second electric capacity C2, the 3rd electric capacity C3; First electric capacity C1, the second electric capacity C2 of described parallel connection, the 3rd electric capacity C3, the 4th electric capacity C4 mono-parallel connected end are connected with AC power, another parallel connected end ground connection.
Further, the LC filter circuit described in any road both can on the live wire of incoming transport power input, also can on the zero line of incoming transport power input.
Further, the first described electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4 are safety electric capacity.
Further, described inductance is differential mode inductance.
The utility model compared to existing technology, has following beneficial effect:
1. the utility model filter traction many lighting apparatus, reduce the use amount of filter.
2. the utility model to overcome in Multi-source filter device mutual interference between the lines, and minimizing is reprocessed.
3. the utility model has clear and definite circuit relationships, convenient for maintaining.
Accompanying drawing explanation
Fig. 1 is appearance assumption diagram of the present utility model.
Fig. 2 is theory diagram of the present utility model.
Fig. 3 is the circuit diagram of a LC filter circuit in the utility model.
Wherein: 1-filtering body, 2-ac power input end, 3-ac power input end.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in the figure.A kind of multi-source power supply filter, comprise filtering body 1, the ac power input end 2 be arranged on filtering body, ac power output 3, described filtering body 1 is made up of insulation crust and many LC filter circuits in parallel, described LC filter circuit signal input part is connected with ac power input end 2, and LC filter circuit signal output part is connected with load lighting apparatus with by ac power output 3.
Further, described LC filter circuit comprises the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4 in parallel, and is connected on the inductance L between the second electric capacity C2, the 3rd electric capacity C3; First electric capacity C1, the second electric capacity C2 of described parallel connection, the 3rd electric capacity C3, the 4th electric capacity C4 mono-parallel connected end are connected with AC power, another parallel connected end ground connection.
Further, the LC filter circuit described in any road both can on the live wire of incoming transport power input, also can on the zero line of incoming transport power input.
Further, the first described electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4 are safety electric capacity.
Further, described inductance is differential mode inductance.
Above-described embodiment is only enumerating of the utility model technical conceive way of realization; protection range of the present utility model is not limited only to above-described embodiment, and protection range of the present utility model may extend to those skilled in the art according to the thinkable equivalent technologies means of technical conceive of the present invention.
Claims (5)
1. a multi-source power supply filter, comprise filtering body (1), the ac power input end (2) be arranged on filtering body, ac power output (3), described filtering body (1) is made up of insulation crust and many LC filter circuits in parallel, it is characterized in that: described LC filter circuit signal input part is connected with ac power input end (2), LC filter circuit signal output part is connected with load lighting apparatus by ac power output (3).
2. multi-source power supply filter according to claim 1, it is characterized in that: described LC filter circuit comprises the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4 in parallel, and is connected on the inductance L between the second electric capacity C2, the 3rd electric capacity C3; First electric capacity C1, the second electric capacity C2 of described parallel connection, the 3rd electric capacity C3, the 4th electric capacity C4 mono-parallel connected end are connected with AC power, another parallel end connection insulation crust.
3. multi-source power supply filter according to claim 1, is characterized in that: the LC filter circuit described in any road both can on the live wire of incoming transport power input, also can the zero line of incoming transport power input.
4. multi-source power supply filter according to claim 2, is characterized in that: the first described electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4 are safety electric capacity.
5. multi-source power supply filter according to claim 2, is characterized in that: described inductance is differential mode inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326595.XU CN204615629U (en) | 2015-05-20 | 2015-05-20 | A kind of multi-source power supply filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326595.XU CN204615629U (en) | 2015-05-20 | 2015-05-20 | A kind of multi-source power supply filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204615629U true CN204615629U (en) | 2015-09-02 |
Family
ID=53968153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520326595.XU Expired - Fee Related CN204615629U (en) | 2015-05-20 | 2015-05-20 | A kind of multi-source power supply filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204615629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579656A (en) * | 2017-08-23 | 2018-01-12 | 北京新能源汽车股份有限公司 | A kind of DC dc converter and electric automobile |
-
2015
- 2015-05-20 CN CN201520326595.XU patent/CN204615629U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579656A (en) * | 2017-08-23 | 2018-01-12 | 北京新能源汽车股份有限公司 | A kind of DC dc converter and electric automobile |
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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: 20150902 |