JPH037622U - - Google Patents
Info
- Publication number
- JPH037622U JPH037622U JP6461589U JP6461589U JPH037622U JP H037622 U JPH037622 U JP H037622U JP 6461589 U JP6461589 U JP 6461589U JP 6461589 U JP6461589 U JP 6461589U JP H037622 U JPH037622 U JP H037622U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- power supply
- relay
- detecting
- input power
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
Description
第１図は本考案の一実施例の回路図である。
１……電源スイツチ、２……リレー、２Ａ……
リレー２のリレー接点、３……ダイオード、４，
５……トランジスタ、６，７……定電圧ダイオー
ド、Ｒ８，Ｒ９，Ｒ１０，Ｒ１１……抵抗、１２
……ＤＣ／ＤＣコンバータ、１３……電圧源。
FIG. 1 is a circuit diagram of an embodiment of the present invention. 1...Power switch, 2...Relay, 2A...
Relay contact of relay 2, 3... diode, 4,
5... Transistor, 6, 7... Constant voltage diode, R8, R9, R10, R11... Resistor, 12
...DC/DC converter, 13...voltage source.
Claims (1)
圧に達した時点を検出して導通状態となる第１の
トランジスタと、前記第１のトランジスタの導通
状態により偏移された電圧を検出してカツトオフ
となる第２のトランジスタと、前記第２のトラン
ジスタのカツトオフによりコイル電流が遮断され
て接点が接から断となるリレーとを備え、前記し
きい値以上の入力電源電圧に達した時点において
前記リレーの接点により負荷の電源盤に接続され
ていた前記入力電源電圧を切り離すことを特徴と
する電源盤保護回路。 a first transistor that becomes conductive by detecting when the input power supply voltage reaches a high voltage equal to or higher than a predetermined threshold; and detecting a voltage that is shifted due to the conductive state of the first transistor; a second transistor that is cut off; and a relay that cuts off the coil current and disconnects the contacts by cutting off the second transistor; A power supply panel protection circuit characterized in that the input power supply voltage connected to the power supply panel of the load is disconnected by a contact of a relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6461589U JPH037622U (en) | 1989-06-01 | 1989-06-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6461589U JPH037622U (en) | 1989-06-01 | 1989-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH037622U true JPH037622U (en) | 1991-01-24 |
Family
ID=31595715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6461589U Pending JPH037622U (en) | 1989-06-01 | 1989-06-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH037622U (en) |
-
1989
- 1989-06-01 JP JP6461589U patent/JPH037622U/ja active Pending