JPS59149711U - Muting signal generation circuit - Google Patents
Muting signal generation circuitInfo
- Publication number
- JPS59149711U JPS59149711U JP4293883U JP4293883U JPS59149711U JP S59149711 U JPS59149711 U JP S59149711U JP 4293883 U JP4293883 U JP 4293883U JP 4293883 U JP4293883 U JP 4293883U JP S59149711 U JPS59149711 U JP S59149711U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- muting signal
- generation circuit
- signal generation
- input
- 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図は従来のミューティング回路の１例をブロックで
示す図、第２図〜第４図は本考案の実施例の各回路図で
ある。
主要部分の符号の説明、６・・・・・・基準電圧発生回
路、７・・・・・・電圧比較回路、８・・・・・・入力
電圧印加回路。FIG. 1 is a block diagram showing an example of a conventional muting circuit, and FIGS. 2 to 4 are circuit diagrams of embodiments of the present invention. Explanation of symbols of main parts, 6... Reference voltage generation circuit, 7... Voltage comparison circuit, 8... Input voltage application circuit.
Claims (3)
入力電圧の絶対値が低下したときにミューティング信号
を発生する電圧比較手段と、前記入力電圧として少くと
も回路電源電圧を印加する入力印加手段とを含むことを
特徴とするミューティング信号発生回路。(1) A reference voltage generation source, voltage comparison means that generates a muting signal when the absolute value of the input voltage decreases with respect to the absolute value of the reference voltage, and at least a circuit power supply voltage is applied as the input voltage. A muting signal generation circuit comprising: input application means.
、前記入力電圧がベースに夫々印加されたトランジスタ
を有し、このトランジスタのコレクタ出力を前記ミュー
ティング信号とするようにしたことを特徴とする実用新
案登録請求の範囲第１項記載のミューティング信号発生
回路。(2) The voltage comparison means includes a transistor to which the reference voltage is applied to the emitter and the input voltage is applied to the base, and the collector output of this transistor is used as the muting signal. A muting signal generation circuit according to claim 1 of the utility model registration claim.
切換えるファンクションスイッチを有し、このファンク
ションスイッチを介して前記回路電源電圧を前記電圧比
較手段の入力電圧として供給するようにしたことを特徴
とする実用新案登録請求の範囲第１項又は第２項記載の
ミューティング信号発生回路。(3) The utility model characterized in that the input applying means has a function switch for switching functions of the device, and the circuit power supply voltage is supplied as the input voltage to the voltage comparing means via the function switch. A muting signal generation circuit according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4293883U JPS59149711U (en) | 1983-03-24 | 1983-03-24 | Muting signal generation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4293883U JPS59149711U (en) | 1983-03-24 | 1983-03-24 | Muting signal generation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59149711U true JPS59149711U (en) | 1984-10-06 |
Family
ID=30173473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4293883U Pending JPS59149711U (en) | 1983-03-24 | 1983-03-24 | Muting signal generation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59149711U (en) |
-
1983
- 1983-03-24 JP JP4293883U patent/JPS59149711U/en active Pending
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