JPS60127024U - current limit circuit - Google Patents
current limit circuitInfo
- Publication number
- JPS60127024U JPS60127024U JP1525284U JP1525284U JPS60127024U JP S60127024 U JPS60127024 U JP S60127024U JP 1525284 U JP1525284 U JP 1525284U JP 1525284 U JP1525284 U JP 1525284U JP S60127024 U JPS60127024 U JP S60127024U
- Authority
- JP
- Japan
- Prior art keywords
- current limiting
- amplification stage
- current limit
- limit circuit
- output
- 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
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図は従来の電流制限回路を備えた電力増幅器の回路
図、第２図は第１図の回路の入力電圧対 ゛出力電流
特性図、第３図は本考案の電流制限回路を備えた電力増
幅器の回路図、第４図は第３図の ・回路の入力電圧対
出力電流特性図である。
′ ３・・・・・・電圧増幅段、Ｑ、〜Ｑ、・・・・・
・電力増幅段を構成するトランジスタ、ＤＬ・・・・・
・発光素子、ＴＬ・・・・・・受光素子、ｑ・・・・・
・電流制限用トランジスタ。Figure 1 is a circuit diagram of a power amplifier equipped with a conventional current limiting circuit, Figure 2 is an input voltage vs. output current characteristic diagram of the circuit in Figure 1, and Figure 3 is a diagram of a power amplifier equipped with the current limiting circuit of the present invention. The circuit diagram of the power amplifier, FIG. 4, is the input voltage versus output current characteristic diagram of the circuit shown in FIG. '3...Voltage amplification stage, Q, ~Q,...
・Transistor, DL, which constitutes the power amplification stage...
・Light emitting element, TL... Light receiving element, q...
・Current limiting transistor.
Claims (1)
よりなる電力増幅器において、前記電力増幅段の出力電
流を検出し、この検出出力を入力とするフォトカブラと
、このフォトカブラの出力を受ける電流制限用トランジ
スタとを具備し、前記電流制限用トランジスタは、前記
電圧増幅段の入力端子と基準電位間に挿入されているこ
とを特徴とする電力増幅器の電流制限回路。In a power amplifier consisting of a power amplification stage and a voltage amplification stage that drives this power amplification stage, an output current of the power amplification stage is detected, and a photocoupler receives this detection output as input, and the output of this photocoupler is 1. A current limiting circuit for a power amplifier, comprising: a current limiting transistor that receives a current limiting transistor, the current limiting transistor being inserted between an input terminal of the voltage amplifying stage and a reference potential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1525284U JPS60127024U (en) | 1984-02-06 | 1984-02-06 | current limit circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1525284U JPS60127024U (en) | 1984-02-06 | 1984-02-06 | current limit circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60127024U true JPS60127024U (en) | 1985-08-27 |
Family
ID=30500930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1525284U Pending JPS60127024U (en) | 1984-02-06 | 1984-02-06 | current limit circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60127024U (en) |
-
1984
- 1984-02-06 JP JP1525284U patent/JPS60127024U/en active Pending
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