JPS58129707U - Amplifier circuit switching circuit - Google Patents
Amplifier circuit switching circuitInfo
- Publication number
- JPS58129707U JPS58129707U JP1974482U JP1974482U JPS58129707U JP S58129707 U JPS58129707 U JP S58129707U JP 1974482 U JP1974482 U JP 1974482U JP 1974482 U JP1974482 U JP 1974482U JP S58129707 U JPS58129707 U JP S58129707U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- amplifier
- stage amplifier
- input signal
- switching
- 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
- Amplifiers (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図は従来例を示すブロック図、第２図は本考案の一
実施例を示すブロック図である。
図中、２−Ａ、２−Ｂ及び２−ｃは切換器、３は前段増
幅器、４は次段増幅器である。FIG. 1 is a block diagram showing a conventional example, and FIG. 2 is a block diagram showing an embodiment of the present invention. In the figure, 2-A, 2-B, and 2-c are switchers, 3 is a pre-stage amplifier, and 4 is a next-stage amplifier.
Claims (1)
器を介して次段増幅器に加えるか、又は上記入力信号を
直接上記次段増幅器に加えるかを選択する切換器とを有
する増幅回路において、上記入力信号が直接次段増幅器
に加えられるときに上記切換器に連動して、上記入力端
子から上記次段増幅器に直接接続されるアースラインを
切断する切換器を設けたことを特徴とする増幅回路の切
換回路。An amplifier circuit having a preamplifier, a next-stage amplifier, and a switch for selecting whether to apply an input signal to the next-stage amplifier via the preamplifier or to directly apply the input signal to the next-stage amplifier. , further comprising a switching device that operates in conjunction with the switching device to disconnect the ground line directly connected from the input terminal to the next-stage amplifier when the input signal is directly applied to the next-stage amplifier. Switching circuit for amplifier circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1974482U JPS58129707U (en) | 1982-02-15 | 1982-02-15 | Amplifier circuit switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1974482U JPS58129707U (en) | 1982-02-15 | 1982-02-15 | Amplifier circuit switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58129707U true JPS58129707U (en) | 1983-09-02 |
Family
ID=30031940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1974482U Pending JPS58129707U (en) | 1982-02-15 | 1982-02-15 | Amplifier circuit switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58129707U (en) |
-
1982
- 1982-02-15 JP JP1974482U patent/JPS58129707U/en active Pending
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