JPS5658316A - Automatic tuner of variable capacitor type - Google Patents

Automatic tuner of variable capacitor type

Info

Publication number
JPS5658316A
JPS5658316A JP13437779A JP13437779A JPS5658316A JP S5658316 A JPS5658316 A JP S5658316A JP 13437779 A JP13437779 A JP 13437779A JP 13437779 A JP13437779 A JP 13437779A JP S5658316 A JPS5658316 A JP S5658316A
Authority
JP
Japan
Prior art keywords
afc
circuit
variable capacitor
capacitor type
automatic tuner
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.)
Granted
Application number
JP13437779A
Other languages
Japanese (ja)
Other versions
JPS5924563B2 (en
Inventor
Yuichi Naito
Masashi Fuse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
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 by Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP13437779A priority Critical patent/JPS5924563B2/en
Publication of JPS5658316A publication Critical patent/JPS5658316A/en
Publication of JPS5924563B2 publication Critical patent/JPS5924563B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/30—Automatic scanning over a band of frequencies where the scanning is accomplished by mechanical means, e.g. by a motor
    • H03J7/305—Automatic scanning over a band of frequencies where the scanning is accomplished by mechanical means, e.g. by a motor in which an automatic frequency control circuit is brought in action after the scanning action has been stopped

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE:To achieve the automatic tuning operation by a DC motor accurately around the stop location, by supplying an AFC voltage to a varactor diode for AFC via a delay circuit. CONSTITUTION:The delay circuit 57 consisting of a filter with the resistor R71 and the capacitor C71, is inserted between the AFC circuit 56 and the smoothing circuit 51 to supply the AFC voltage with a certain delay to the AFC circuit 56, allowing to make smooth the operation of the motor 31 until tuning.
JP13437779A 1979-10-18 1979-10-18 Varicon type automatic tuning device Expired JPS5924563B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13437779A JPS5924563B2 (en) 1979-10-18 1979-10-18 Varicon type automatic tuning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13437779A JPS5924563B2 (en) 1979-10-18 1979-10-18 Varicon type automatic tuning device

Publications (2)

Publication Number Publication Date
JPS5658316A true JPS5658316A (en) 1981-05-21
JPS5924563B2 JPS5924563B2 (en) 1984-06-11

Family

ID=15126961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13437779A Expired JPS5924563B2 (en) 1979-10-18 1979-10-18 Varicon type automatic tuning device

Country Status (1)

Country Link
JP (1) JPS5924563B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885825A (en) * 1987-06-18 1989-12-12 Kabushiki Kaisha Tikai-Rika-Denki-Seisakusho Buckle apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885825A (en) * 1987-06-18 1989-12-12 Kabushiki Kaisha Tikai-Rika-Denki-Seisakusho Buckle apparatus

Also Published As

Publication number Publication date
JPS5924563B2 (en) 1984-06-11

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