JPH0454444U - - Google Patents
Info
- Publication number
- JPH0454444U JPH0454444U JP9440890U JP9440890U JPH0454444U JP H0454444 U JPH0454444 U JP H0454444U JP 9440890 U JP9440890 U JP 9440890U JP 9440890 U JP9440890 U JP 9440890U JP H0454444 U JPH0454444 U JP H0454444U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power source
- relay
- power
- backup
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Description
第１図は本考案の実施例の回路図である。
１……回路、２……主電源、３……予備電源、
４……リレー、５……ダイオード、６……コンデ
ンサ、７……制御回路。
FIG. 1 is a circuit diagram of an embodiment of the present invention. 1...Circuit, 2...Main power supply, 3...Backup power supply,
4... Relay, 5... Diode, 6... Capacitor, 7... Control circuit.
Claims (1)
源と、前記回路の電源線間に接続したコンデンサ
と、前記予備電源の前記回路への接続を切断する
ためのリレーと、前記主電源の切断状態が予め設
定した時間長にわたるのを検出したとき前記回路
の前記電源線を前記リレーに接続して前記予備電
源の前記回路への接続を断状態に切替えさせる制
御回路とを備えていることを特徴とする二重電源
保護回路。 A main power source and a backup power source for supplying power to the circuit, a capacitor connected between power lines of the circuit, a relay for disconnecting the backup power source from the circuit, and a disconnection state of the main power source. and a control circuit that connects the power line of the circuit to the relay and switches the connection of the backup power source to the circuit to a disconnected state when a preset time period is detected. Double power protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9440890U JPH0454444U (en) | 1990-09-07 | 1990-09-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9440890U JPH0454444U (en) | 1990-09-07 | 1990-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0454444U true JPH0454444U (en) | 1992-05-11 |
Family
ID=31832320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9440890U Pending JPH0454444U (en) | 1990-09-07 | 1990-09-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0454444U (en) |
-
1990
- 1990-09-07 JP JP9440890U patent/JPH0454444U/ja active Pending