JPH0181788U - - Google Patents
Info
- Publication number
- JPH0181788U JPH0181788U JP1987175679U JP17567987U JPH0181788U JP H0181788 U JPH0181788 U JP H0181788U JP 1987175679 U JP1987175679 U JP 1987175679U JP 17567987 U JP17567987 U JP 17567987U JP H0181788 U JPH0181788 U JP H0181788U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power supply
- level conversion
- conversion circuit
- cabinet
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Emergency Alarm Devices (AREA)
Description
第1図は、本考案の一実施例の要部を示すブロ
ツク図である。
1……サーキツトブレーカ、2……直流電源ユ
ニツト、3……発光素子、4……レベル変換回路
、5……警報回路、6……キヤビネツト、7……
警報回路用電源、10……入力電源、11……レ
ベル変換回路の出力信号。
FIG. 1 is a block diagram showing the main parts of an embodiment of the present invention. 1... Circuit breaker, 2... DC power supply unit, 3... Light emitting element, 4... Level conversion circuit, 5... Alarm circuit, 6... Cabinet, 7...
Power supply for alarm circuit, 10...Input power supply, 11...Output signal of level conversion circuit.
Claims (1)
サーキツトブレーカと装置内の各部に電源を供給
する直流電源ユニツトを内蔵する磁気デイスク装
置において、前記キヤビネツト内に前記直流電源
ユニツトから電流を供給されて発光する発光素子
と、前記発光素子より放射する光を受光しその受
光量を電気量に変換するレベル変換回路と、前記
レベル変換回路の出力信号により制御される前記
サーキツトブレーカを含む入力電源遮断回路と、
前記レベル変換回路の出力信号により警報を出す
警報回路を有することを特徴とする磁気デイスク
装置。 In a magnetic disk device that has a built-in circuit breaker in a cabinet that connects and disconnects input power to the device, and a DC power supply unit that supplies power to each part of the device, current is supplied from the DC power supply unit into the cabinet. An input power supply cutoff including a light emitting element that emits light, a level conversion circuit that receives light emitted from the light emitting element and converts the amount of received light into an amount of electricity, and the circuit breaker that is controlled by an output signal of the level conversion circuit. circuit and
A magnetic disk device comprising an alarm circuit that issues an alarm based on the output signal of the level conversion circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987175679U JPH0181788U (en) | 1987-11-17 | 1987-11-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987175679U JPH0181788U (en) | 1987-11-17 | 1987-11-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0181788U true JPH0181788U (en) | 1989-05-31 |
Family
ID=31467464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987175679U Pending JPH0181788U (en) | 1987-11-17 | 1987-11-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0181788U (en) |
-
1987
- 1987-11-17 JP JP1987175679U patent/JPH0181788U/ja active Pending