JPS5922548U - portable receiver - Google Patents

portable receiver

Info

Publication number
JPS5922548U
JPS5922548U JP11818082U JP11818082U JPS5922548U JP S5922548 U JPS5922548 U JP S5922548U JP 11818082 U JP11818082 U JP 11818082U JP 11818082 U JP11818082 U JP 11818082U JP S5922548 U JPS5922548 U JP S5922548U
Authority
JP
Japan
Prior art keywords
resistor
circuit
negative feedback
amplifier circuit
portable
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
JP11818082U
Other languages
Japanese (ja)
Other versions
JPH021945Y2 (en
Inventor
友孝 橋本
Original Assignee
神田通信工業株式会社
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 神田通信工業株式会社 filed Critical 神田通信工業株式会社
Priority to JP11818082U priority Critical patent/JPS5922548U/en
Publication of JPS5922548U publication Critical patent/JPS5922548U/en
Application granted granted Critical
Publication of JPH021945Y2 publication Critical patent/JPH021945Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Superheterodyne Receivers (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]

第１図は従来一般的なＡＧＣ回路を有する受信機の系統
図である。第２図は本考案の一実施例を示す受信機の系
統図である。第３図は本考案の一実施例の負帰還形中間
周波増幅回路図である。第４図は第３図の入出力特性図
で′ある。第５図は本−考案の実施例に基づく第２図の
総合的なＡＧＣ効果による入出力特性図である。 ２・・・・・・高周波増幅回路、５・・・・・・周波数
混合回路、７・・・・・・中間周波数増幅器、３．６・
・・・・・抵抗、２０・・・・・・負帰還電圧検出用抵
抗、２１・・・・・・コンデンサ。FIG. 1 is a system diagram of a conventional receiver having a general AGC circuit. FIG. 2 is a system diagram of a receiver showing an embodiment of the present invention. FIG. 3 is a circuit diagram of a negative feedback type intermediate frequency amplification circuit according to an embodiment of the present invention. FIG. 4 is an input/output characteristic diagram of FIG. 3. FIG. 5 is an input/output characteristic diagram based on the comprehensive AGC effect of FIG. 2 based on the embodiment of the present invention. 2... High frequency amplifier circuit, 5... Frequency mixing circuit, 7... Intermediate frequency amplifier, 3.6.
... Resistor, 20 ... Negative feedback voltage detection resistor, 21 ... Capacitor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 携帯用ＡＭスーパー今テロダイン式受信機に於て、中間
周波増幅回路を負帰還形直結２段増幅回路で構成し、当
該負帰還形直結２段増幅回路の給電側に挿入された負帰
還電圧検出用抵抗の検出電圧を前段の周波数混合回路の
ＡＧＣ制御端子に供給する第１の抵抗と前記検出電圧を
高周波増幅回路のＡＧＣ制御端子に供給する第２の抵抗
とを備えたことを特徴とする携帯用受信機。In a portable AM super terodyne type receiver, the intermediate frequency amplification circuit is configured with a negative feedback type direct-coupled two-stage amplifier circuit, and a negative feedback voltage detection circuit is inserted on the power supply side of the negative feedback type direct-coupled two-stage amplifier circuit. A first resistor that supplies the detected voltage of the resistor to the AGC control terminal of the frequency mixing circuit in the preceding stage, and a second resistor that supplies the detected voltage to the AGC control terminal of the high-frequency amplifier circuit. Portable receiver.
JP11818082U 1982-08-03 1982-08-03 portable receiver Granted JPS5922548U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11818082U JPS5922548U (en) 1982-08-03 1982-08-03 portable receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11818082U JPS5922548U (en) 1982-08-03 1982-08-03 portable receiver

Publications (2)

Publication Number Publication Date
JPS5922548U true JPS5922548U (en) 1984-02-10
JPH021945Y2 JPH021945Y2 (en) 1990-01-18

Family

ID=30271746

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11818082U Granted JPS5922548U (en) 1982-08-03 1982-08-03 portable receiver

Country Status (1)

Country Link
JP (1) JPS5922548U (en)

Also Published As

Publication number Publication date
JPH021945Y2 (en) 1990-01-18

Similar Documents

Publication Publication Date Title
JPS5922548U (en) portable receiver
JPS5899913U (en) high frequency amplifier
JPS5976169U (en) video amplification circuit
JPS59195824U (en) gain control circuit
JPS58121416U (en) High frequency amplifier circuit
JPS599619U (en) amplifier circuit
JPS58129712U (en) amplifier circuit
JPS6040119U (en) current amplification circuit
JPS58183625U (en) Frequency characteristic variable circuit
JPS5961618U (en) Midpoint potential circuit
JPS58132410U (en) rear equalizer circuit
JPS58506U (en) Power amplifier circuit for audio equipment
JPS5948112U (en) amplifier
JPS60181914U (en) audio power amplifier
JPS5877913U (en) negative feedback amplifier
JPS5991027U (en) Negative feedback amplifier circuit
JPS583611U (en) negative feedback amplifier
JPS606325U (en) amplifier
JPS5914410U (en) automatic gain control circuit
JPS6019219U (en) amplifier
JPS591213U (en) transistor amplifier
JPS5840914U (en) oscillation circuit
JPS59125112U (en) amplifier
JPS60129713U (en) power amplifier circuit
JPS59186650U (en) Control circuit for combustion equipment