JPS60108024U - DC control type semiconductor volume control circuit - Google Patents
DC control type semiconductor volume control circuitInfo
- Publication number
- JPS60108024U JPS60108024U JP19793183U JP19793183U JPS60108024U JP S60108024 U JPS60108024 U JP S60108024U JP 19793183 U JP19793183 U JP 19793183U JP 19793183 U JP19793183 U JP 19793183U JP S60108024 U JPS60108024 U JP S60108024U
- Authority
- JP
- Japan
- Prior art keywords
- control circuit
- semiconductor volume
- type semiconductor
- circuit
- capacitor
- 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)
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図は直流制御形半導体ボリュームの従来例の制御回
路を示す図、第２図はこの考案の一実施例を示す直流制
御形半導体ボリュームの制御回路 −図、第３図はバラ
ンス制御特性の一例を示すデータ図である。
−図中、１は直流制御形半導
体ボリューム（ＣＶＡ）、Ｑは電界効果トランジスタ、
Ｃは絶縁性の高いコンデンサ、Ｓ工、Ｓ２はスイッチ、
Ｒ工〜Ｒ３は抵抗を示す。Fig. 1 is a diagram showing a conventional control circuit for a DC controlled semiconductor volume, Fig. 2 is a control circuit for a DC controlled semiconductor volume showing an embodiment of this invention, and Fig. 3 is a diagram showing balance control characteristics. It is a data diagram showing an example.
- In the figure, 1 is a DC controlled semiconductor volume (CVA), Q is a field effect transistor,
C is a highly insulating capacitor, S is a switch, S2 is a switch,
R-R3 shows resistance.
Claims (1)
ワ回路を構成している電界効果トランジスタと、該電界
効果トランジスタのゲート電極と接地間に接続されてい
る高絶縁性のコンデンサと、前記コンデンサを充電する
スイッチを含む充電回路と、前記コンデンサを放電する
スイッチを含む放電回路により構成されていることを特
徴とする直流制御形半導体ボリュームの制御回路。A control circuit for a DC controlled semiconductor volume includes a field effect transistor forming a source follower circuit, a highly insulating capacitor connected between the gate electrode of the field effect transistor and ground, and a switch for charging the capacitor. 1. A control circuit for a DC-controlled semiconductor volume, comprising a charging circuit including a charging circuit and a discharging circuit including a switch for discharging the capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19793183U JPS60108024U (en) | 1983-12-24 | 1983-12-24 | DC control type semiconductor volume control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19793183U JPS60108024U (en) | 1983-12-24 | 1983-12-24 | DC control type semiconductor volume control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60108024U true JPS60108024U (en) | 1985-07-23 |
Family
ID=30756492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19793183U Pending JPS60108024U (en) | 1983-12-24 | 1983-12-24 | DC control type semiconductor volume control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60108024U (en) |
-
1983
- 1983-12-24 JP JP19793183U patent/JPS60108024U/en active Pending
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