JPS5848132U - Interstage double tuning circuit of UHF tuner - Google Patents
Interstage double tuning circuit of UHF tunerInfo
- Publication number
- JPS5848132U JPS5848132U JP14440581U JP14440581U JPS5848132U JP S5848132 U JPS5848132 U JP S5848132U JP 14440581 U JP14440581 U JP 14440581U JP 14440581 U JP14440581 U JP 14440581U JP S5848132 U JPS5848132 U JP S5848132U
- Authority
- JP
- Japan
- Prior art keywords
- uhf tuner
- tuning circuit
- interstage double
- interstage
- double tuning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Filters And Equalizers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のＵＨＦチューナの段間複同調回路を示す
回路図、第２客はほこの考案に係るＵＨＦチューナの段
間複同調回路の一実施例を示す回路図である。
１１・・・・・・入力端子、１２・・・・・・結合コン
シン毎、１３．１６・・・・・・共振線路、１４．１７
・・・・・・可変容量ダイオード、１５．１８・・曲共
振コンデンサ、１９・・・・・・結合ループ、２０・・
・・・・出力端子、２１・・・・・・同調電圧の入力端
子、２２．２６・・・・・・抵抗、２５・・・・・・回
路パターン。FIG. 1 is a circuit diagram showing an inter-stage double tuning circuit of a conventional UHF tuner, and the second is a circuit diagram showing an embodiment of the inter-stage double tuning circuit of a UHF tuner according to Hoko's invention. 11... Input terminal, 12... Each coupled consulator, 13.16... Resonant line, 14.17
...Variable capacitance diode, 15.18 ... Curved resonance capacitor, 19 ... Coupling loop, 20 ...
... Output terminal, 21 ... Tuning voltage input terminal, 22.26 ... Resistor, 25 ... Circuit pattern.
Claims (1)
るＵＨＦチューナの段間複同調回路に於いて、前記２段
の共振回路それぞれのインダクタの一端部に可変容量素
子が接続され、他端部が両インダクタに対して共通イン
ピーダンスとなるように設けられた共通インピーダンス
部を介して基準電位点に接続されるように構成したこと
を特徴とするＵＨＦチューナの段間複同調回路。In an interstage double-tuned circuit of a UHF tuner having two stages of a 12-type resonant circuit or a 14-type resonant circuit, a variable capacitance element is connected to one end of the inductor of each of the two stages of resonant circuits, and a variable capacitance element is connected to the other end of the inductor. 1. An interstage double-tuned circuit for a UHF tuner, characterized in that the interstage double-tuned circuit is connected to a reference potential point via a common impedance section provided so as to have a common impedance for both inductors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14440581U JPS5848132U (en) | 1981-09-29 | 1981-09-29 | Interstage double tuning circuit of UHF tuner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14440581U JPS5848132U (en) | 1981-09-29 | 1981-09-29 | Interstage double tuning circuit of UHF tuner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5848132U true JPS5848132U (en) | 1983-03-31 |
Family
ID=29937369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14440581U Pending JPS5848132U (en) | 1981-09-29 | 1981-09-29 | Interstage double tuning circuit of UHF tuner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5848132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01106629A (en) * | 1987-10-20 | 1989-04-24 | Fujitsu General Ltd | Tuner circuit for satellite broadcast television receiver |
-
1981
- 1981-09-29 JP JP14440581U patent/JPS5848132U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01106629A (en) * | 1987-10-20 | 1989-04-24 | Fujitsu General Ltd | Tuner circuit for satellite broadcast television receiver |
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