JPS58135133U - 電子チユ−ナのバンド切換回路 - Google Patents

電子チユ−ナのバンド切換回路

Info

Publication number
JPS58135133U
JPS58135133U JP1982022287U JP2228782U JPS58135133U JP S58135133 U JPS58135133 U JP S58135133U JP 1982022287 U JP1982022287 U JP 1982022287U JP 2228782 U JP2228782 U JP 2228782U JP S58135133 U JPS58135133 U JP S58135133U
Authority
JP
Japan
Prior art keywords
circuit
band switching
switching circuit
electronic tuner
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.)
Pending
Application number
JP1982022287U
Other languages
English (en)
Inventor
吉村　兵造
西村　武志
Original Assignee
日本電気ホームエレクトロニクス株式会社
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 日本電気ホームエレクトロニクス株式会社 filed Critical 日本電気ホームエレクトロニクス株式会社
Priority to JP1982022287U priority Critical patent/JPS58135133U/ja
Priority to KR2019830001437U priority patent/KR900011293Y1/ko
Publication of JPS58135133U publication Critical patent/JPS58135133U/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
    • H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
    • H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (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。

Description

【図面の簡単な説明】
第１図は本考案−実施例の■Ｈｙ電子チューナの全回路
図、第２図はそのバンド切換回路を示す回路図、第３図
は本考案の第２スイッチングダイ−オードの他の組付は
例を示す部分回路図である。 ＡＢＣ・・・同調回路、３Ｈ・・・ハイバンド用のバン
ド切換電圧線、３Ｌ・・・ロウバンド用のバンド切換切
換電圧線、８・・・同調コイル、９ＡＨ，９ＡＬ。 ９ＢＨ，９ＢＬ、９ＣＨ，９ＣＬ・・・第１のスイッチ
ングダイオード、１０．１０’・・・第２のスイッチン
グダイオード。

Claims (1)

    【実用新案登録請求の範囲】
  1. バンド切換用スイッチングダイオードとハイチャンネル
    及びロウチャンネル用同調コイルを具備するチューナ回
    路、このチューナ回路を駆動する第１及び第２の電圧端
    子、及び前記第１及び第２の電圧端子の一方と前記チュ
    ーナ回路との間に介挿した電圧降下用ダイオードとによ
    り構成したことを特徴とする電子チューナのバンド切換
    回路。
JP1982022287U 1982-02-18 1982-02-18 電子チユ−ナのバンド切換回路 Pending JPS58135133U (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1982022287U JPS58135133U (ja) 1982-02-18 1982-02-18 電子チユ−ナのバンド切換回路
KR2019830001437U KR900011293Y1 (ko) 1982-02-18 1983-02-17 전자 튜우너의 밴드 변환회로

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982022287U JPS58135133U (ja) 1982-02-18 1982-02-18 電子チユ−ナのバンド切換回路

Publications (1)

Publication Number Publication Date
JPS58135133U true JPS58135133U (ja) 1983-09-10

Family

ID=30034377

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1982022287U Pending JPS58135133U (ja) 1982-02-18 1982-02-18 電子チユ−ナのバンド切換回路

Country Status (2)

Country Link
JP (1) JPS58135133U (ja)
KR (1) KR900011293Y1 (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS515882A (ja) * 1974-07-03 1976-01-19 Shindengen Electric Mfg Keikototentosochi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS515882A (ja) * 1974-07-03 1976-01-19 Shindengen Electric Mfg Keikototentosochi

Also Published As

Publication number Publication date
KR840004512U (ko) 1984-09-20
KR900011293Y1 (ko) 1990-12-22

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