JPH0161840U - - Google Patents
Info
- Publication number
- JPH0161840U JPH0161840U JP15476487U JP15476487U JPH0161840U JP H0161840 U JPH0161840 U JP H0161840U JP 15476487 U JP15476487 U JP 15476487U JP 15476487 U JP15476487 U JP 15476487U JP H0161840 U JPH0161840 U JP H0161840U
- Authority
- JP
- Japan
- Prior art keywords
- power
- load
- power supply
- output voltage
- rectifier
- 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 3
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Description
第１図はこの考案の一実施例を示す回路構成図
、第２図は従来の非常用電源切換装置の一例を示
す回路構成図、第３図は同装置の制御回路を示す
回路構成図である。
３１……商用電源、３２……変圧器、３３……
整流回路、３４……配電用遮断器、３５……逆流
防止用ダイオード、３６……バツテリ。
Fig. 1 is a circuit diagram showing an embodiment of this invention, Fig. 2 is a circuit diagram showing an example of a conventional emergency power switching device, and Fig. 3 is a circuit diagram showing a control circuit of the device. be. 31...Commercial power supply, 32...Transformer, 33...
Rectifier circuit, 34...Distribution circuit breaker, 35...Reverse current prevention diode, 36...Battery.
Claims (1)
力に変換して負荷に供給する整流手段と、上記負
荷に直流電力を供給する直流電源と、この直流電
源と負荷との間に介挿され上記整流回路の出力電
圧が上記直流電源の出力電圧より高い場合は上記
直流電源より負荷への給電を阻止するとともに上
記整流回路の出力電圧が上記直流電源の出力電圧
より低下すると上記直流電源より上記負荷への給
電を許容するダイオードとを具備したことを特徴
とする非常用電源切換装置。 an AC power source, a rectifier that converts the AC power of the AC power source into DC power and supplies it to a load, a DC power source that supplies DC power to the load, and a rectifier that is inserted between the DC power source and the load and that is When the output voltage of the rectifier circuit is higher than the output voltage of the DC power supply, the DC power supply stops supplying power to the load, and when the output voltage of the rectifier circuit falls below the output voltage of the DC power supply, the DC power supply stops supplying power to the load. An emergency power switching device characterized by comprising a diode that allows power supply to the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15476487U JPH0161840U (en) | 1987-10-09 | 1987-10-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15476487U JPH0161840U (en) | 1987-10-09 | 1987-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0161840U true JPH0161840U (en) | 1989-04-20 |
Family
ID=31431786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15476487U Pending JPH0161840U (en) | 1987-10-09 | 1987-10-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0161840U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS496505U (en) * | 1972-04-19 | 1974-01-21 |
-
1987
- 1987-10-09 JP JP15476487U patent/JPH0161840U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS496505U (en) * | 1972-04-19 | 1974-01-21 |