JPS604047U - Receiving machine - Google Patents
Receiving machineInfo
- Publication number
- JPS604047U JPS604047U JP9471683U JP9471683U JPS604047U JP S604047 U JPS604047 U JP S604047U JP 9471683 U JP9471683 U JP 9471683U JP 9471683 U JP9471683 U JP 9471683U JP S604047 U JPS604047 U JP S604047U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- intermediate frequency
- agc
- receiver
- frequency amplification
- 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
Links
Landscapes
- Control Of Amplification And Gain Control (AREA)
- Circuits Of Receivers In General (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
第１図は従来の一般的なＡＭ受信機の一例を示すブロッ
ク図で、第２図は本考案になる受信機の一実施例を説明
するためのブロック図、第３図は本考案になる受信機の
一実施例を示す回路図である。
１・・・高周波信号入力端子、２・・・高周波増幅回路
、３・・・混合回路、４Ａ〜４Ｎ・・・中間周波増幅回
路、５・・・検波回路、６・・・低周波増幅回路、７・
・・低周波信号出力端子、８・・・ＡＧＣ回路、９・・
・第１のＡＧＣ回路、１０・・・第２のＡＧＣ回路、１
１・・・可変コンデンサ、１２・・・同調コイル、１３
・・・局部発振回路、１４・・・中間周波トランス（Ｉ
ＦＴ）及びセラミックフィルタ、Ｑ１〜Ｑ１゜・・・ト
ランジスタ、Ｄｌ・・・ダイオード、Ｒ１−Ｒ１４・・
・抵抗器、Ｃ□〜Ｃ４・・・コンデンサ、■。
〜Ｉ６・・・電流源。Fig. 1 is a block diagram showing an example of a conventional general AM receiver, Fig. 2 is a block diagram illustrating an embodiment of the receiver according to the present invention, and Fig. 3 is a block diagram showing an example of the receiver according to the present invention. FIG. 2 is a circuit diagram showing an example of a receiver. DESCRIPTION OF SYMBOLS 1...High frequency signal input terminal, 2...High frequency amplification circuit, 3...Mixing circuit, 4A-4N...Intermediate frequency amplification circuit, 5...Detection circuit, 6...Low frequency amplification circuit ,7・
...Low frequency signal output terminal, 8...AGC circuit, 9...
・First AGC circuit, 10...Second AGC circuit, 1
1... Variable capacitor, 12... Tuning coil, 13
...Local oscillation circuit, 14...Intermediate frequency transformer (I
FT) and ceramic filter, Q1-Q1゜...transistor, Dl...diode, R1-R14...
・Resistor, C□~C4...Capacitor, ■. ~I6... Current source.
Claims (1)
幅回路・検波回路等を有する受信機において、前記検波
回路の出力信号により前記中間周波増幅回路の利得を調
整する第１のＡＧＣ回路と、前記第１のＡＧＣ回路の作
動による前記中間周波増幅回路の出力信号の直流電圧変
位により、前記高周波増幅回路及び前記混合回路の少な
くとも一方の利得を調整する第２のＡＧＣ回路とを具備
した受信機。In a receiver having a high frequency amplification circuit, a mixing circuit, a local oscillation circuit, an intermediate frequency amplification circuit, a detection circuit, etc., a first AGC circuit that adjusts the gain of the intermediate frequency amplification circuit according to an output signal of the detection circuit; A receiver comprising: a second AGC circuit that adjusts the gain of at least one of the high frequency amplifier circuit and the mixing circuit by a DC voltage displacement of the output signal of the intermediate frequency amplifier circuit due to the operation of the first AGC circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9471683U JPS604047U (en) | 1983-06-20 | 1983-06-20 | Receiving machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9471683U JPS604047U (en) | 1983-06-20 | 1983-06-20 | Receiving machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS604047U true JPS604047U (en) | 1985-01-12 |
Family
ID=30226575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9471683U Pending JPS604047U (en) | 1983-06-20 | 1983-06-20 | Receiving machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS604047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9696070B2 (en) | 2012-05-14 | 2017-07-04 | Denso Corporation | Flow rate adjustment valve for refrigeration cycle |
-
1983
- 1983-06-20 JP JP9471683U patent/JPS604047U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9696070B2 (en) | 2012-05-14 | 2017-07-04 | Denso Corporation | Flow rate adjustment valve for refrigeration cycle |
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