JPS63103128U - - Google Patents

Info

Publication number
JPS63103128U
JPS63103128U JP19786186U JP19786186U JPS63103128U JP S63103128 U JPS63103128 U JP S63103128U JP 19786186 U JP19786186 U JP 19786186U JP 19786186 U JP19786186 U JP 19786186U JP S63103128 U JPS63103128 U JP S63103128U
Authority
JP
Japan
Prior art keywords
regulator
drop
power supply
power
detection circuit
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.)
Granted
Application number
JP19786186U
Other languages
Japanese (ja)
Other versions
JPH057633Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1986197861U priority Critical patent/JPH057633Y2/ja
Publication of JPS63103128U publication Critical patent/JPS63103128U/ja
Application granted granted Critical
Publication of JPH057633Y2 publication Critical patent/JPH057633Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、本考案の電源装置の一実施例のブロ
ツク回路図であり、第２図は、パワースイツチの
操作で電源遮断されたときの第１図の動作を説明
する波形図であり、第３図は、第２のレギユレー
タの出力電圧が短絡されたときの第１図の動作を
説明する波形図であり、第４図は、衛星放送受信
システムの概要図であり、第５図は、従来の電源
装置の一例の回路図である。 ９：第１のレギユレータ、１０：第２のレギユ
レータ、１２：パワーオフ検出回路。 FIG. 1 is a block circuit diagram of an embodiment of the power supply device of the present invention, and FIG. 2 is a waveform diagram illustrating the operation of FIG. 1 when the power is cut off by operating a power switch. FIG. 3 is a waveform diagram explaining the operation of FIG. 1 when the output voltage of the second regulator is short-circuited, FIG. 4 is a schematic diagram of the satellite broadcast receiving system, and FIG. , is a circuit diagram of an example of a conventional power supply device. 9: first regulator, 10: second regulator, 12: power-off detection circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 第１のレギユレータを介して、記憶を維持する
ためにバツク・アツプを必要とする装置に第１の
電力を供給し、第２のレギユレータを介して、他
の機器に第２の電力を供給する電源装置において
、前記第１のレギユレータの入力電圧の降下およ
び前記第２のレギユレータの出力電圧の降下を検
出するパワーオフ検出回路を設け、前記入力電圧
および前記出力電圧のいずれか一方の降下で前記
パワーオフ検出回路から出力される検出信号によ
つて前記バツク・アツプを必要とする装置がバツ
ク・アツプモードに切り換えられるようにしたこ
とを特徴とした電源装置。 A first power supply is provided via a first regulator to a device requiring backup to maintain memory, and a second power supply is provided to other equipment via a second regulator. The power supply device includes a power-off detection circuit that detects a drop in the input voltage of the first regulator and a drop in the output voltage of the second regulator, and a power-off detection circuit that detects a drop in the input voltage of the first regulator and a drop in the output voltage of the second regulator is provided. A power supply device characterized in that the device requiring backup can be switched to a backup mode by a detection signal output from a power-off detection circuit.
JP1986197861U 1986-12-22 1986-12-22 Expired - Lifetime JPH057633Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986197861U JPH057633Y2 (en) 1986-12-22 1986-12-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986197861U JPH057633Y2 (en) 1986-12-22 1986-12-22

Publications (2)

Publication Number Publication Date
JPS63103128U true JPS63103128U (en) 1988-07-04
JPH057633Y2 JPH057633Y2 (en) 1993-02-25

Family

ID=31158016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986197861U Expired - Lifetime JPH057633Y2 (en) 1986-12-22 1986-12-22

Country Status (1)

Country Link
JP (1) JPH057633Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57138098A (en) * 1981-02-19 1982-08-26 Fuji Electric Co Ltd Mis-write preventing circuit in main power supply failure
JPS5937867U (en) * 1982-09-02 1984-03-09 富士電機株式会社 Shaft seal oil supply device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57138098A (en) * 1981-02-19 1982-08-26 Fuji Electric Co Ltd Mis-write preventing circuit in main power supply failure
JPS5937867U (en) * 1982-09-02 1984-03-09 富士電機株式会社 Shaft seal oil supply device

Also Published As

Publication number Publication date
JPH057633Y2 (en) 1993-02-25

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