JPS58166121U - Output limiting circuit for power amplifier circuit - Google Patents
Output limiting circuit for power amplifier circuitInfo
- Publication number
- JPS58166121U JPS58166121U JP6126682U JP6126682U JPS58166121U JP S58166121 U JPS58166121 U JP S58166121U JP 6126682 U JP6126682 U JP 6126682U JP 6126682 U JP6126682 U JP 6126682U JP S58166121 U JPS58166121 U JP S58166121U
- Authority
- JP
- Japan
- Prior art keywords
- output
- circuit
- amplifier
- voltage
- power amplifier
- 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
- Tone Control, Compression And Expansion, Limiting Amplitude (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図は従来の電力増幅回路の出力制限回路を示す回路
図、第２図は本考案の一実施例を示す回路図、である。
符号説明、１・・・・・・制御用オペアンプ、２・・・
・・・オペアンプ１の帰還抵抗、３・・・・・・オペア
ンプ１の信号源抵抗、４・・・・・・出力トランジスタ
、５・・・・・・リミッタ、６・・・・・・外乱、７・
・・・・・入力切換回路、８・・・・・・出力検出用ト
ランジスタ、９・・・・・・入力切換回路７の制御信号
。FIG. 1 is a circuit diagram showing an output limiting circuit of a conventional power amplifier circuit, and FIG. 2 is a circuit diagram showing an embodiment of the present invention. Symbol explanation, 1... Control operational amplifier, 2...
... Feedback resistance of operational amplifier 1, 3 ... Signal source resistance of operational amplifier 1, 4 ... Output transistor, 5 ... Limiter, 6 ... Disturbance ,7・
. . . Input switching circuit, 8 . . . Output detection transistor, 9 . . . Control signal for input switching circuit 7.
Claims (1)
力回路とから成り、前記演算増幅器の電源電圧を前記出
力回路の電源電圧より高くして該出力回路の出力電圧の
ダイナミックレンジが前記出力回路の電源電圧より小さ
くならないようにした電力増幅回路において、前記出力
回路の出力電圧の検出手段と、該検出手段による検出電
圧が成る設定値を超えたとき、前記増幅器への入力信号
を信号源側から成る基準電圧源側へ切り換えることによ
り増幅器出力をミュートさせる手段とを設けたことを特
徴とする電力増幅回路の出力制限回路。It consists of a variable gain operational amplifier and an output circuit that constitutes an output stage of the amplifier, and the power supply voltage of the operational amplifier is made higher than the power supply voltage of the output circuit so that the dynamic range of the output voltage of the output circuit is adjusted to the output circuit. In the power amplifier circuit, the output voltage of the output circuit is detected by means for detecting the output voltage of the output circuit, and when the detected voltage by the detecting means exceeds a set value, the input signal to the amplifier is set to the signal source side. An output limiting circuit for a power amplifier circuit, comprising means for muting an amplifier output by switching to a reference voltage source side consisting of a reference voltage source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6126682U JPS58166121U (en) | 1982-04-28 | 1982-04-28 | Output limiting circuit for power amplifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6126682U JPS58166121U (en) | 1982-04-28 | 1982-04-28 | Output limiting circuit for power amplifier circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58166121U true JPS58166121U (en) | 1983-11-05 |
Family
ID=30071472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6126682U Pending JPS58166121U (en) | 1982-04-28 | 1982-04-28 | Output limiting circuit for power amplifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58166121U (en) |
-
1982
- 1982-04-28 JP JP6126682U patent/JPS58166121U/en active Pending
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