JPS59161755U - amplifier circuit - Google Patents
amplifier circuitInfo
- Publication number
- JPS59161755U JPS59161755U JP5398083U JP5398083U JPS59161755U JP S59161755 U JPS59161755 U JP S59161755U JP 5398083 U JP5398083 U JP 5398083U JP 5398083 U JP5398083 U JP 5398083U JP S59161755 U JPS59161755 U JP S59161755U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- common
- amplification system
- switch
- called
- 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
- Superheterodyne Receivers (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
図は本考案の一実施例の回路図である。
４・・・ＦＭ増幅トランジスタ、６・・・ＦＭ／ＡＭ増
幅器、１０・・・ＦＭ増幅器、１４・・・ＦＭ増幅トラ
ンジスタ、１９・・・ＦＭ増幅トランジスタ、２０・・
・スイッチ、２１・・・ダイオード、２９・・・ＡＭ増
幅）ランジスタ。The figure is a circuit diagram of an embodiment of the present invention. 4...FM amplification transistor, 6...FM/AM amplifier, 10...FM amplifier, 14...FM amplification transistor, 19...FM amplification transistor, 20...
・Switch, 21...diode, 29...AM amplification) transistor.
Claims (1)
地の２系統の入力回路を設け、前者をＡ１後者をＢ系統
とし、これらの入力回路の出力を一個の増幅器を通し増
幅、出力するものをＢ増幅系とし、Ｂ増幅系の出力をさ
らにコレクタ接地、エミッタ接地増幅器を経て出力され
る方をＡ増幅系とし、前記、Ａ増幅系のベース接地入力
回路のベースバイアス抵抗及びＢ増幅系のエミッタ、接
地入力回路のエミッタ抵抗をスイッタの一端に接続し、
このスイッチの一端からダイオードを経て前記Ａ増幅系
のエミッタ接地増幅器のベースに接続し、スイッチの一
方は接地側に接続し、スイッチの閉、即でＡ、 Ｂ増幅
系を切替えることを特徴とする増幅回路。In a transistor amplifier, there are two input circuits, one with a common base and the other with a common emitter, the former being called A and the latter being called B, and the output of these input circuits being amplified and outputted through one amplifier is called B amplification system. The output of the B amplification system is further passed through a common collector and common emitter amplifier, and is outputted as an A amplification system. Connect the emitter resistor to one end of the switcher,
One end of this switch is connected to the base of the common emitter amplifier of the A amplification system through a diode, and one end of the switch is connected to the ground side, so that when the switch is closed, the A and B amplification systems are immediately switched. Amplification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5398083U JPS59161755U (en) | 1983-04-13 | 1983-04-13 | amplifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5398083U JPS59161755U (en) | 1983-04-13 | 1983-04-13 | amplifier circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59161755U true JPS59161755U (en) | 1984-10-30 |
Family
ID=30184332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5398083U Pending JPS59161755U (en) | 1983-04-13 | 1983-04-13 | amplifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59161755U (en) |
-
1983
- 1983-04-13 JP JP5398083U patent/JPS59161755U/en active Pending
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