JPH046228U - - Google Patents
Info
- Publication number
- JPH046228U JPH046228U JP4522090U JP4522090U JPH046228U JP H046228 U JPH046228 U JP H046228U JP 4522090 U JP4522090 U JP 4522090U JP 4522090 U JP4522090 U JP 4522090U JP H046228 U JPH046228 U JP H046228U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power supply
- thyristor
- relay
- transistor
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
Description
第１図は本考案の電源遮断回路の一実施例を示
す回路図である。
図中、１……検出回路、２，４，６，７，８…
…抵抗、３……ツエナーダイオード、５……サイ
リスタ、９……トランジスタ、１０……ダイオー
ド、１１……リレー、１２……制御回路電源、１
３……ＡＣ電源ライン、１４……ＡＣ電源、１５
……装置電源部である。
FIG. 1 is a circuit diagram showing an embodiment of the power cutoff circuit of the present invention. In the figure, 1...detection circuit, 2, 4, 6, 7, 8...
... Resistor, 3 ... Zener diode, 5 ... Thyristor, 9 ... Transistor, 10 ... Diode, 11 ... Relay, 12 ... Control circuit power supply, 1
3...AC power line, 14...AC power supply, 15
...This is the device power supply section.
Claims (1)
、検出した電圧で作動するツエナダイオードと、
ツエナダイオードの電流で動作するサイリスタと
、サイリスタで制御されるトランジスタと、トラ
ンジスタで駆動するリレー回路と、リレー回路動
作によりリレー接点を開路することで装置の電源
ラインを遮断する電源遮断回路。 A detection unit that detects overvoltage and overcurrent in the power supply circuit, a Zener diode that operates with the detected voltage,
A thyristor operated by the current of a Zena diode, a transistor controlled by the thyristor, a relay circuit driven by the transistor, and a power cutoff circuit that cuts off the power supply line of the device by opening the relay contact by the relay circuit operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4522090U JPH046228U (en) | 1990-04-27 | 1990-04-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4522090U JPH046228U (en) | 1990-04-27 | 1990-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH046228U true JPH046228U (en) | 1992-01-21 |
Family
ID=31559200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4522090U Pending JPH046228U (en) | 1990-04-27 | 1990-04-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH046228U (en) |
-
1990
- 1990-04-27 JP JP4522090U patent/JPH046228U/ja active Pending