JPS62152519U - - Google Patents

Info

Publication number
JPS62152519U
JPS62152519U JP3999786U JP3999786U JPS62152519U JP S62152519 U JPS62152519 U JP S62152519U JP 3999786 U JP3999786 U JP 3999786U JP 3999786 U JP3999786 U JP 3999786U JP S62152519 U JPS62152519 U JP S62152519U
Authority
JP
Japan
Prior art keywords
tuning
variable capacitance
tuning circuit
diode
capacitance diode
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
Application number
JP3999786U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP3999786U priority Critical patent/JPS62152519U/ja
Publication of JPS62152519U publication Critical patent/JPS62152519U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本考案の電子同調回路の一実施例の
回路図であり、第２図は、トラツプ用可変容量ダ
イオードの特性の一例を示す図であり、第３図は
、従来の電子同調回路の一例の回路図である。 １，２，３，４，５，６：コイル、８，９：ス
イツチング用ダイオード、１９：同調用可変容量
ダイオード、２０：入力端子、２１：出力端子、
２４：同調電圧端子、２６：トラツプ用可変容量
ダイオード。 FIG. 1 is a circuit diagram of an embodiment of the electronic tuning circuit of the present invention, FIG. 2 is a diagram showing an example of the characteristics of a trap variable capacitance diode, and FIG. 3 is a diagram of a conventional electronic tuning circuit. FIG. 2 is a circuit diagram of an example of a circuit. 1, 2, 3, 4, 5, 6: Coil, 8, 9: Switching diode, 19: Tuning variable capacitance diode, 20: Input terminal, 21: Output terminal,
24: Tuning voltage terminal, 26: Variable capacitance diode for trap.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 入力同調回路と接地間にインピーダンス整合用
のコイルとスイツチング用ダイオードを直列に介
装し、このスイツチング用ダイオードをハイチヤ
ンネル受信時に導通しローチヤンネル受信時に遮
断する電子同調回路において、前記スイツチング
用ダイオードに並列にトラツプ用可変容量ダイオ
ードを接続し、この可変容量ダイオードに同調回
路の同調周波数を可変する同調用可変容量ダイオ
ードへの同調電圧を印加したことを特徴とする電
子同調回路。 In an electronic tuning circuit, an impedance matching coil and a switching diode are interposed in series between an input tuning circuit and ground, and the switching diode is made conductive when receiving a high channel and cut off when receiving a low channel. An electronic tuning circuit characterized in that a trapping variable capacitance diode is connected in parallel, and a tuning voltage to the tuning variable capacitance diode for varying the tuning frequency of the tuning circuit is applied to the variable capacitance diode.
JP3999786U 1986-03-19 1986-03-19 Pending JPS62152519U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3999786U JPS62152519U (en) 1986-03-19 1986-03-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3999786U JPS62152519U (en) 1986-03-19 1986-03-19

Publications (1)

Publication Number Publication Date
JPS62152519U true JPS62152519U (en) 1987-09-28

Family

ID=30853689

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3999786U Pending JPS62152519U (en) 1986-03-19 1986-03-19

Country Status (1)

Country Link
JP (1) JPS62152519U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6320620U (en) * 1986-07-25 1988-02-10
JPH0258415A (en) * 1988-06-28 1990-02-27 Telefunken Electronic Gmbh Television tuner with band-pass filter circuit
JPH0397241U (en) * 1989-12-31 1991-10-07

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6320620U (en) * 1986-07-25 1988-02-10
JPH0258415A (en) * 1988-06-28 1990-02-27 Telefunken Electronic Gmbh Television tuner with band-pass filter circuit
JPH0397241U (en) * 1989-12-31 1991-10-07

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