JPS58132445U - IF radiation prevention circuit - Google Patents

IF radiation prevention circuit

Info

Publication number
JPS58132445U
JPS58132445U JP2952282U JP2952282U JPS58132445U JP S58132445 U JPS58132445 U JP S58132445U JP 2952282 U JP2952282 U JP 2952282U JP 2952282 U JP2952282 U JP 2952282U JP S58132445 U JPS58132445 U JP S58132445U
Authority
JP
Japan
Prior art keywords
circuit
radiation prevention
prevention circuit
reception
variable impedance
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
JP2952282U
Other languages
Japanese (ja)
Other versions
JPH0119482Y2 (en
Inventor
右田　一彦
謙一 高木
Original Assignee
クラリオン株式会社
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 クラリオン株式会社 filed Critical クラリオン株式会社
Priority to JP2952282U priority Critical patent/JPS58132445U/en
Publication of JPS58132445U publication Critical patent/JPS58132445U/en
Application granted granted Critical
Publication of JPH0119482Y2 publication Critical patent/JPH0119482Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Noise Elimination (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

図は本考案の実施例を示す回路図である。 ＡＮＴ・・・・・・アンテナ、ＩＦ・・・・・・ＦＭ受
信回路のＩＦ回路、Ｃ０・・・・・・ＦＭ結合コンデン
サ、Ｌ２・・・・・・ＡＭ雑防コイル、Ａ・・・・・・
ＡＭ雑防コイルとＡＭ受信回路との結接点、Ｃ４・・・
・・・コンデンサ、Ｑ・・・・・・スイッチング用トラ
ンジスタ。The figure is a circuit diagram showing an embodiment of the present invention. ANT...Antenna, IF...FM receiving circuit IF circuit, C0...FM coupling capacitor, L2...AM noise prevention coil, A... ...
Connection point between AM noise prevention coil and AM receiving circuit, C4...
...Capacitor, Q...Switching transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] １本のアンテナに、ＦＭ結合コンデンサを介してＦＭ受
信回路が接続されるとともにＡＭ雑防コイルを介してＡ
Ｍ受信回路が接続されるＦＭ／ＡＭ受信機において、前
記ＡＭ雑防コイルとＡＭ受信回路との結接点をインピー
ダンス可変回路を介して接地し、ＦＭ受信の際に前記イ
ンピーダンス可変回路のインピーダンスを下げるよう構
成したことを特徴とするＩＦ輻射防止回路。An FM receiving circuit is connected to one antenna via an FM coupling capacitor, and an A
In the FM/AM receiver to which the M reception circuit is connected, a connection point between the AM noise prevention coil and the AM reception circuit is grounded via a variable impedance circuit to lower the impedance of the variable impedance circuit during FM reception. An IF radiation prevention circuit characterized by being configured as follows.
JP2952282U 1982-03-02 1982-03-02 IF radiation prevention circuit Granted JPS58132445U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2952282U JPS58132445U (en) 1982-03-02 1982-03-02 IF radiation prevention circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2952282U JPS58132445U (en) 1982-03-02 1982-03-02 IF radiation prevention circuit

Publications (2)

Publication Number Publication Date
JPS58132445U true JPS58132445U (en) 1983-09-07
JPH0119482Y2 JPH0119482Y2 (en) 1989-06-06

Family

ID=30041310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2952282U Granted JPS58132445U (en) 1982-03-02 1982-03-02 IF radiation prevention circuit

Country Status (1)

Country Link
JP (1) JPS58132445U (en)

Also Published As

Publication number Publication date
JPH0119482Y2 (en) 1989-06-06

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