JPS5834414U - Power amplifier current limit circuit - Google Patents
Power amplifier current limit circuitInfo
- Publication number
- JPS5834414U JPS5834414U JP12643981U JP12643981U JPS5834414U JP S5834414 U JPS5834414 U JP S5834414U JP 12643981 U JP12643981 U JP 12643981U JP 12643981 U JP12643981 U JP 12643981U JP S5834414 U JPS5834414 U JP S5834414U
- Authority
- JP
- Japan
- Prior art keywords
- power amplifier
- output
- voltage divider
- divider circuit
- current limit
- 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)
- 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ａは電力増幅器の従来の電流制限回路の回路図、
第１図すおよびＣは第１図ａに示す電流制限回路の作用
の説明に供する図、第２図ａは本考案の一実施例の回路
図、第２図すおよびＣは第２図ａに示す本考案の一実施
例の作用の説明に供する図である。
Ｑ、およびＱ２・・・電流制限用のトランジスタ、Ｑ３
〜Ｑ６・・・電力増幅用のトランジスタ。Figure 1a is a circuit diagram of a conventional current limiting circuit for a power amplifier;
Figures 1 and C are diagrams for explaining the operation of the current limiting circuit shown in Figure 1a, Figure 2a is a circuit diagram of an embodiment of the present invention, and Figures 2 and C are Figure 2a. FIG. 2 is a diagram for explaining the operation of an embodiment of the present invention shown in FIG. Q, and Q2...current limiting transistor, Q3
~Q6...Transistor for power amplification.
Claims (1)
ミッタ抵抗に発生した電圧を抵抗分圧回路により検出し
、該抵抗分圧回路の出力電圧により前記出力トランジス
タの入力端と５ＥＰＰ電力増幅器の出力端との間に接続
したトランジスタを駆動して電流制限を行なう電力増幅
器の電流制限回路において、抵抗分圧回路の５ＥＰＰ電
力増幅器の出力端側に接続された抵抗に直列されたコン
デンサを備えてなることを特徴とする電力増幅器の電流
制限回路。The output current of the 5EPP power amplifier is detected by a resistor voltage divider circuit that detects the voltage generated in the emitter resistance of the output transistor, and the output voltage of the resistor voltage divider circuit is used to connect the input terminal of the output transistor and the output terminal of the 5EPP power amplifier. A current limiting circuit for a power amplifier that limits current by driving a transistor connected to a resistor voltage divider circuit, characterized by comprising a capacitor connected in series with a resistor connected to the output end side of a 5EPP power amplifier of a resistor voltage divider circuit. Current limiting circuit for power amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12643981U JPS5834414U (en) | 1981-08-28 | 1981-08-28 | Power amplifier current limit circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12643981U JPS5834414U (en) | 1981-08-28 | 1981-08-28 | Power amplifier current limit circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5834414U true JPS5834414U (en) | 1983-03-05 |
Family
ID=29920226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12643981U Pending JPS5834414U (en) | 1981-08-28 | 1981-08-28 | Power amplifier current limit circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5834414U (en) |
-
1981
- 1981-08-28 JP JP12643981U patent/JPS5834414U/en active Pending
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