CN202940779U - Electronic tuner - Google Patents
Electronic tuner Download PDFInfo
- Publication number
- CN202940779U CN202940779U CN 201220667329 CN201220667329U CN202940779U CN 202940779 U CN202940779 U CN 202940779U CN 201220667329 CN201220667329 CN 201220667329 CN 201220667329 U CN201220667329 U CN 201220667329U CN 202940779 U CN202940779 U CN 202940779U
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- inductance
- wifi
- tuner
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Abstract
The utility model relates to an electronic tuner. The technical problem to be solved in the utility model is to provide an electronic tuner having a built-in WIFI filtering function, wherein the electronic tuner can be used to effectively solve the WIFI interference problem. The electronic tuner of the utility model adopts the following technical scheme: the electronic tuner comprises a tuner comprising an input end, an output end and a tuning circuit, wherein the tuning circuit is connected with the output end; and the tuner further comprises a WIFI filtering circuit, wherein the input end is connected with the tuning circuit through the WIFI filtering circuit. The electronic tuner of the utility model has the following advantages: the WIFI interference can be improved, advantages of simple structure and good practicability can be realized, and the technical scheme of the utility model is suitable for electronic tuners.
Description
Technical field
The utility model relates to a kind of electronic tuning unit.
Background technology
WIFI be a kind of can be by terminals such as PC, handheld devices (as PDA, mobile phone) with the interconnected technology of wireless mode.WIFI is exactly a kind of Wireless Networking technology, and commonly a wireless router, can adopt the WIFI connected mode to be networked in the effective range covered at the wireless router electric wave; If wireless router has connected an adsl line or other online circuits, " focus " is otherwise known as.Along with progress and people's growth in the living standard of technology, present most families all have multi-section mobile Internet access terminal.For the convenience of living, there is self-built WIFI focus in resident family mostly.And the signal strength signal intensity of WIFI focus is 2.4G, this signal strength signal intensity is stronger, can disturb the normal operation of electronic tuning unit.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of electronic tuning unit of the WIFI of carrying filter function, can effectively solve the interference problem of WIFI.
The utility model solves the technical scheme that its technical problem adopts: electronic tuning unit, comprise there is input, the tuner of output and tuning circuit, tuning circuit is connected with output, tuner also comprises the WIFI filter circuit, and input is connected with tuning circuit by the WIFI filter circuit.
Concrete, the WIFI filter circuit comprises the first inductance, the second inductance, the 3rd inductance, the 4th inductance, the 5th inductance, the first electric capacity and the second electric capacity; One end of the first inductance is connected with input, and the other end of the first inductance is connected with an end of the 3rd inductance, and the other end of the first inductance also is connected with an end of the second inductance, and the other end of the second inductance is connected with ground by the first electric capacity; The other end of the 3rd inductance is connected with an end of the 5th inductance, and the other end of the 3rd inductance also is connected with an end of the 4th inductance, and the other end of the 4th inductance is connected with ground by the second electric capacity; The other end of the 5th inductance is connected with tuning circuit.
Concrete, the first inductance is 4.7nH, and the second inductance is 2.2nH, and the 3rd inductance is 10nH, and the 4th inductance is 2.2nH, and the 5th inductance is 4.7nH, and the first electric capacity is 2pF, and the second electric capacity is 1.5pF.
Further, described tuner is the silicon electronic tuning unit.
The beneficial effects of the utility model are: improve the interference of WIFI, and simple in structure, practical.
The accompanying drawing explanation
Fig. 1 is apparatus structure of the present utility model unit block diagram;
Fig. 2 is the WIFI filter circuit concrete structure schematic diagram of the utility model embodiment;
Wherein, L1 is the first inductance, and L2 is the second inductance, and L3 is the 3rd inductance, and L4 is the 4th inductance, and L5 is the 5th inductance, and C1 is the first electric capacity, and C2 is the second electric capacity.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the apparatus structure unit block diagram of the utility model embodiment, electronic tuning unit of the present utility model, comprise there is input, the tuner of output and tuning circuit, tuning circuit is connected with output, tuner also comprises the WIFI filter circuit, and input is connected with tuning circuit by the WIFI filter circuit.
Embodiment
As Fig. 2, the WIFI filter circuit comprises the first inductance L 1, the second inductance L 2, the 3rd inductance L 3, the 4th inductance L 4, the 5th inductance L 5, the first capacitor C 1 and the second capacitor C 2; One end of the first inductance L 1 is connected with input, and the other end of the first inductance L 1 is connected with an end of the 3rd inductance L 3, and the other end of the first inductance L 1 also is connected with an end of the second inductance L 2, and the other end of the second inductance L 2 is connected with ground by the first capacitor C 1; The other end of the 3rd inductance L 3 is connected with an end of the 5th inductance L 5, and the other end of the 3rd inductance L 3 also is connected with an end of the 4th inductance L 4, and the other end of the 4th inductance L 4 is connected with ground by the second capacitor C 2; The other end of the 5th inductance L 5 is connected with tuning circuit.
In order to realize better the WIFI filter function, described the first inductance L 1 is 4.7nH, and the second inductance L 2 is 2.2nH, and the 3rd inductance L 3 is 10nH, and the 4th inductance L 4 is 2.2nH, and the 5th inductance L 5 is 4.7nH, and the first capacitor C 1 is 2pF, and the second capacitor C 2 is 1.5pF.
The TV RF signals of cable or spatial by as the WIFI filter circuit of Fig. 2, in assurance digital catv signal normal transmission, filtering WIFI noise signal wherein to greatest extent.
Because the silicon electronic tuning unit progressively becomes the main flow of development, described tuner is the silicon electronic tuning unit.
Claims (4)
1. electronic tuning unit, comprise there is input, the tuner of output and tuning circuit, tuning circuit is connected with output, it is characterized in that, tuner also comprises the WIFI filter circuit, input is connected with tuning circuit by the WIFI filter circuit.
2. electronic tuning unit as claimed in claim 1, it is characterized in that, the WIFI filter circuit comprises the first inductance (L1), the second inductance (L2), the 3rd inductance (L3), the 4th inductance (L4), the 5th inductance (L5), the first electric capacity (C1) and the second electric capacity (C2); One end of the first inductance (L1) is connected with input, the other end of the first inductance (L1) is connected with an end of the 3rd inductance (L3), the other end of the first inductance (L1) also is connected with an end of the second inductance (L2), and the other end of the second inductance (L2) is connected with ground by the first electric capacity (C1); The other end of the 3rd inductance (L3) is connected with an end of the 5th inductance (L5), and the 3rd inductance (L3) other end also is connected with an end of the 4th inductance (L4), and the other end of the 4th inductance (L4) is connected with ground by the second electric capacity (C2); The other end of the 5th inductance (L5) is connected with tuning circuit.
3. electronic tuning unit as claimed in claim 2, it is characterized in that, the first inductance (L1) is 4.7nH, the second inductance (L2) is 2.2nH, the 3rd inductance (L3) is 10nH, and the 4th inductance (L4) is 2.2nH, and the 5th inductance (L5) is 4.7nH, the first electric capacity (C1) is 2pF, and the second electric capacity (C2) is 1.5pF.
4. as claim 1 or 2 or 3 described electronic tuning units, it is characterized in that, described tuner is the silicon electronic tuning unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220667329 CN202940779U (en) | 2012-12-06 | 2012-12-06 | Electronic tuner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220667329 CN202940779U (en) | 2012-12-06 | 2012-12-06 | Electronic tuner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940779U true CN202940779U (en) | 2013-05-15 |
Family
ID=48325001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220667329 Expired - Lifetime CN202940779U (en) | 2012-12-06 | 2012-12-06 | Electronic tuner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935993A (en) * | 2015-06-23 | 2015-09-23 | 四川长虹电器股份有限公司 | WIFI/EOC filtering control circuit and control method for digital television |
-
2012
- 2012-12-06 CN CN 201220667329 patent/CN202940779U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935993A (en) * | 2015-06-23 | 2015-09-23 | 四川长虹电器股份有限公司 | WIFI/EOC filtering control circuit and control method for digital television |
| CN104935993B (en) * | 2015-06-23 | 2018-10-19 | 四川长虹电器股份有限公司 | DTV WIFI/EOC filter control circuits and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170926 Address after: 621000 Mianyang city of Sichuan Province, Sichuan Industrial Park, love science and Technology Co. Patentee after: SICHUAN AI-LINK TECHNOLOGY Co.,Ltd. Address before: County 622651 Sichuan city of Mianyang Province Hua Gai Zhen Luo Sheng Jie Sichuan Changhong Electronics Co., Ltd. Patentee before: SICHUAN CHANGHONG ELECTRONIC PARTS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 621000 Sichuan Ailian Technology Co.,Ltd., Anzhou Industrial Park, Mianyang City, Sichuan Province Patentee after: Sichuan Ailian Technology Co.,Ltd. Address before: 621000 Mianyang city of Sichuan Province, Sichuan Industrial Park, love science and Technology Co. Patentee before: SICHUAN AI-LINK TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
|
| CX01 | Expiry of patent term |