JPS5893013U - Output transistor current limit circuit - Google Patents
Output transistor current limit circuitInfo
- Publication number
- JPS5893013U JPS5893013U JP18715681U JP18715681U JPS5893013U JP S5893013 U JPS5893013 U JP S5893013U JP 18715681 U JP18715681 U JP 18715681U JP 18715681 U JP18715681 U JP 18715681U JP S5893013 U JPS5893013 U JP S5893013U
- Authority
- JP
- Japan
- Prior art keywords
- output transistor
- differential amplifier
- output
- current limit
- limit circuit
- 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
- Continuous-Control Power Sources That Use Transistors (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図は本考案の一実施例を示す回路図。図中、９及び１０
はオペアンプ、５及び６はツェナーダイオード、２１及
び２２は出力トランジスタである。The figure is a circuit diagram showing an embodiment of the present invention. In the figure, 9 and 10
is an operational amplifier, 5 and 6 are Zener diodes, and 21 and 22 are output transistors.
Claims (1)
力トランジスタのエミッタを増幅度の大なる差動増幅器
の一方の入力端子に接続し、上記負荷端の電圧に基準電
圧を加算して上記差動増幅器のもう一方の入力端子に接
続し、上記差動増幅器の出力端子を上記出力トランジス
タのベースに接続することにより、上記出力トランジス
タのコレクタ電流の最大値を制限することを特徴とする
出力トランジスタの電流制限回路。The emitter of the output transistor that supplies the output current to the load end via the emitter resistor is connected to one input terminal of a differential amplifier with a high degree of amplification, and the reference voltage is added to the voltage at the load end to calculate the above difference. An output transistor configured to limit the maximum value of the collector current of the output transistor by connecting the output terminal of the differential amplifier to the other input terminal of the differential amplifier and connecting the output terminal of the differential amplifier to the base of the output transistor. current limiting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18715681U JPS5893013U (en) | 1981-12-17 | 1981-12-17 | Output transistor current limit circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18715681U JPS5893013U (en) | 1981-12-17 | 1981-12-17 | Output transistor current limit circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5893013U true JPS5893013U (en) | 1983-06-23 |
Family
ID=29989726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18715681U Pending JPS5893013U (en) | 1981-12-17 | 1981-12-17 | Output transistor current limit circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5893013U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54104761A (en) * | 1978-02-03 | 1979-08-17 | Nec Corp | Audio amplifier |
-
1981
- 1981-12-17 JP JP18715681U patent/JPS5893013U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54104761A (en) * | 1978-02-03 | 1979-08-17 | Nec Corp | Audio amplifier |
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