JPS5839615U - Power supply abnormality detection circuit - Google Patents
Power supply abnormality detection circuitInfo
- Publication number
- JPS5839615U JPS5839615U JP13204281U JP13204281U JPS5839615U JP S5839615 U JPS5839615 U JP S5839615U JP 13204281 U JP13204281 U JP 13204281U JP 13204281 U JP13204281 U JP 13204281U JP S5839615 U JPS5839615 U JP S5839615U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- output voltage
- switching transistor
- detection circuit
- abnormality detection
- 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
- Emergency Protection Circuit Devices (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Power Conversion In General (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
第１図は本考案の異常検出回路の一実施例を示す構成図
、第２図は本考案の他の実施例を示す構成図である。
１・・・過電圧検出用ツェナーダイオード、２・・・低
電圧検出用ツェナーダイオード、３．４・・・スイッチ
ングトランジスタ、５・・・リレー、９．１０・・・発
光ダイオード、Ｖ。・・・出力電圧。FIG. 1 is a block diagram showing one embodiment of the abnormality detection circuit of the present invention, and FIG. 2 is a block diagram showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Zener diode for overvoltage detection, 2... Zener diode for low voltage detection, 3.4... Switching transistor, 5... Relay, 9.10... Light emitting diode, V. ...output voltage.
Claims (1)
電圧の正負極間に、２組のツェナーダイオードとスイッ
チングトランジスタの組合せ回路を設け、その各々のツ
ェナーダイオードのカソードヲ出力電圧の正極に、アノ
ードをスイッチングトランジスタのベースに、スイッチ
ングトランジスタのエミッタを出力電圧の負極に接続し
、且つ第１のスイッチングトランジスタのコレクタを第
２のスイッチングトランジスタのベースに、第２のスイ
ッチングトランジスタのコレクタを、一方のコイル端子
が出力電圧の正極に接続されたリレーの他方のコイル端
子に接続することを特徴とした電源装置の異常検出回路
。In a power supply device that supplies DC voltage to a load, a combination circuit of two sets of Zener diodes and a switching transistor is provided between the positive and negative terminals of the output voltage, and the cathode of each Zener diode is connected to the positive terminal of the output voltage, and the anode is switched to the positive terminal of the output voltage. The emitter of the switching transistor is connected to the negative pole of the output voltage to the base of the transistor, the collector of the first switching transistor is connected to the base of the second switching transistor, and the collector of the second switching transistor is connected to the terminal of one coil. An abnormality detection circuit for a power supply device, characterized in that it is connected to the other coil terminal of a relay connected to the positive terminal of an output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13204281U JPS5839615U (en) | 1981-09-07 | 1981-09-07 | Power supply abnormality detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13204281U JPS5839615U (en) | 1981-09-07 | 1981-09-07 | Power supply abnormality detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5839615U true JPS5839615U (en) | 1983-03-15 |
Family
ID=29925594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13204281U Pending JPS5839615U (en) | 1981-09-07 | 1981-09-07 | Power supply abnormality detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5839615U (en) |
-
1981
- 1981-09-07 JP JP13204281U patent/JPS5839615U/en active Pending
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