JPS5981650U - Automotive power circuit - Google Patents

Automotive power circuit

Info

Publication number
JPS5981650U
JPS5981650U JP17882082U JP17882082U JPS5981650U JP S5981650 U JPS5981650 U JP S5981650U JP 17882082 U JP17882082 U JP 17882082U JP 17882082 U JP17882082 U JP 17882082U JP S5981650 U JPS5981650 U JP S5981650U
Authority
JP
Japan
Prior art keywords
circuit
output
constant voltage
voltage
power switch
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
JP17882082U
Other languages
Japanese (ja)
Other versions
JPH0333566Y2 (en
Inventor
西山　周二
Original Assignee
富士通テン株式会社
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 by 富士通テン株式会社 filed Critical 富士通テン株式会社
Priority to JP17882082U priority Critical patent/JPS5981650U/en
Publication of JPS5981650U publication Critical patent/JPS5981650U/en
Application granted granted Critical
Publication of JPH0333566Y2 publication Critical patent/JPH0333566Y2/ja
Granted legal-status Critical Current

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Landscapes

  • Control Of Electrical Variables (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図および第２図は、従来技術を説明するための図、
第３図は本考案の一実施例の回路図、第４図はその動作
を説明するためのグラフ、第５図は本考案の他の実施例
の回路図である。 ２１・・・Ｗスイッチ、２２・・・コネクタ、２３〜２
６．３２・・・ビン、２７・・・バッテリ、２８・・・
第１定電圧回路、２９・・・ＣＰＵ、３Ｑ・・・ＲＯＭ
、　３　ｌ。 ３４　、ＲＡＭ、　３３・・・第２定電圧回路、３５．
７２・・・バックアップ回路。FIG. 1 and FIG. 2 are diagrams for explaining the prior art,
FIG. 3 is a circuit diagram of one embodiment of the present invention, FIG. 4 is a graph for explaining its operation, and FIG. 5 is a circuit diagram of another embodiment of the present invention. 21... W switch, 22... Connector, 23-2
6.32...bottle, 27...battery, 28...
1st constant voltage circuit, 29...CPU, 3Q...ROM
, 3 l. 34, RAM, 33... second constant voltage circuit, 35.
72...Backup circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 自動車のエンジンキーの操作に応じて導通・遮断される
電源スィッチおよびコネクタの複数のビンを介するバッ
テリからの電圧を、第１定電圧回路により予め定めた電
圧に安定化し、電源スィッチの導通時に必す電力付勢さ
れるべき第１の負荷を、第１定電圧回路の出力により電
源スィッチの導通時、に電力付勢するとともに、前記コ
ネクタの単一のビンを介する前記バッテリからの電圧を
、第２定電圧回路により予め定めた電圧に安定化し、電
源スィッチの導通時に必ず電力付勢されかつ電源スィッ
チおの遮断時にも望ましくは電力付勢されるべき第２の
負荷を、電源スィッチの導通・遮断に拘わらず第２定電
圧回路の出力により常時電力付勢するようにした自動車
の電源回路において、前記第１定電圧回路の出力および
第２定電圧回路の出力間に、第２定電圧回路の出力電圧
が第１定電圧回路の出力電圧より低下したときにのみ、
第２定電圧回路の出力電圧を第１電圧回路の出力電圧に
ほぼ等しくするバックアップ回路を設けるようにしたこ
とを特徴とする自動車の電源回路。The first constant voltage circuit stabilizes the voltage from the battery through multiple bins of the power switch and connector, which are turned on and off in response to the operation of the car's engine key, to a predetermined voltage, which is necessary when the power switch is turned on. energizing a first load to be energized by the output of a first constant voltage circuit upon conduction of a power switch and applying voltage from the battery through a single bin of the connector; A second load is stabilized at a predetermined voltage by a second constant voltage circuit, and is energized whenever the power switch is turned on, and preferably also energized when the power switch is turned off. - In an automobile power supply circuit that is configured to constantly energize power by the output of the second constant voltage circuit regardless of the interruption, a second constant voltage is connected between the output of the first constant voltage circuit and the output of the second constant voltage circuit. Only when the output voltage of the circuit becomes lower than the output voltage of the first constant voltage circuit,
A power supply circuit for an automobile, characterized in that a backup circuit is provided to make the output voltage of the second constant voltage circuit substantially equal to the output voltage of the first voltage circuit.
JP17882082U 1982-11-25 1982-11-25 Automotive power circuit Granted JPS5981650U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17882082U JPS5981650U (en) 1982-11-25 1982-11-25 Automotive power circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17882082U JPS5981650U (en) 1982-11-25 1982-11-25 Automotive power circuit

Publications (2)

Publication Number Publication Date
JPS5981650U true JPS5981650U (en) 1984-06-01
JPH0333566Y2 JPH0333566Y2 (en) 1991-07-16

Family

ID=30388138

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17882082U Granted JPS5981650U (en) 1982-11-25 1982-11-25 Automotive power circuit

Country Status (1)

Country Link
JP (1) JPS5981650U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08186880A (en) * 1994-12-28 1996-07-16 Yazaki Corp On-vehicle multiplex transmission system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5856587U (en) * 1981-10-07 1983-04-16 株式会社日立製作所 Automotive power supply circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5856587B2 (en) * 1981-08-12 1983-12-15 工業技術院長 Curing agent for underwater paints

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5856587U (en) * 1981-10-07 1983-04-16 株式会社日立製作所 Automotive power supply circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08186880A (en) * 1994-12-28 1996-07-16 Yazaki Corp On-vehicle multiplex transmission system

Also Published As

Publication number Publication date
JPH0333566Y2 (en) 1991-07-16

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