JPS63171023U - - Google Patents
Info
- Publication number
- JPS63171023U JPS63171023U JP6207087U JP6207087U JPS63171023U JP S63171023 U JPS63171023 U JP S63171023U JP 6207087 U JP6207087 U JP 6207087U JP 6207087 U JP6207087 U JP 6207087U JP S63171023 U JPS63171023 U JP S63171023U
- Authority
- JP
- Japan
- Prior art keywords
- muting
- transistor
- utility
- base
- control voltage
- 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
- 230000035939 shock Effects 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Amplifiers (AREA)
- Control Of Amplification And Gain Control (AREA)
Description
第１図はこの考案に係るミユーテイング回路の
実施例を示し、第２図および、第３図は従来例の
ミユーテイング回路である。
ｅｉ：交流信号源、Ｑ１：ミユーテイングトラ
ンジスタ、Ｄ１：小信号ダイオード、Ｓ１：ミユ
ーテイングスイツチ、ＢＡＴ：直流電源部、ＯＵ
Ｔ：出力信号線路、Ｑ２：ドライバトランジスタ
、Ｃ２：コンデンサ。
FIG. 1 shows an embodiment of the muting circuit according to this invention, and FIGS. 2 and 3 show conventional muting circuits. ei: AC signal source, Q1 : Muting transistor, D1: Small signal diode, S1 : Muting switch, BAT : DC power supply, OU
T: output signal line, Q 2 : driver transistor, C 2 : capacitor.
Claims (1)
ミツタ間の内部接合と同方向にダイオードを接続
して、ダイナミツクレンジが拡大するよう構成さ
せたことを特徴としたミユーテイング回路。 (2) ミユーテイングトランジスタのベースに印
加されるコントロール電圧は、ＣＲの時定数によ
つてコントロール電圧の波形を鈍らせ、出力にシ
ヨツクノイズが出ないように構成したことを特徴
とする実用新案登録請求の範囲第１項記載のミユ
ーテイング回路。[Claims for Utility Model Registration] (1) A muting circuit characterized in that a diode is connected in the same direction as the internal junction between the base and emitter of a mutating transistor to expand the dynamic range. (2) Registration of a utility model characterized in that the control voltage applied to the base of the muting transistor is configured such that the waveform of the control voltage is blunted by the time constant of the CR so that no shock noise occurs in the output. A muting circuit according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6207087U JPS63171023U (en) | 1987-04-25 | 1987-04-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6207087U JPS63171023U (en) | 1987-04-25 | 1987-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63171023U true JPS63171023U (en) | 1988-11-08 |
Family
ID=30895992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6207087U Pending JPS63171023U (en) | 1987-04-25 | 1987-04-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63171023U (en) |
-
1987
- 1987-04-25 JP JP6207087U patent/JPS63171023U/ja active Pending