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JPS5915131U - Memory backup power supply circuit - Google Patents

Memory backup power supply circuit

Info

Publication number
JPS5915131U
JPS5915131U JP10633582U JP10633582U JPS5915131U JP S5915131 U JPS5915131 U JP S5915131U JP 10633582 U JP10633582 U JP 10633582U JP 10633582 U JP10633582 U JP 10633582U JP S5915131 U JPS5915131 U JP S5915131U
Authority
JP
Japan
Prior art keywords
turned
switching element
power supply
supply circuit
battery
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
Application number
JP10633582U
Other languages
Japanese (ja)
Inventor
伸二 宮崎
悟道　広志
宮内　一良
Original Assignee
日通工株式会社
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 日通工株式会社 filed Critical 日通工株式会社
Priority to JP10633582U priority Critical patent/JPS5915131U/en
Publication of JPS5915131U publication Critical patent/JPS5915131U/en
Pending legal-status Critical Current

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  • Power Sources (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Stand-By Power Supply Arrangements (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図及び第２図は従来のメモリバックアップ電源回路
、第３図は本考案の一実施例を示すメモリバックアップ
電源路、ＢＰは商用電源を整流し安定化した電源回路。 Ｅｏ、　Ｅ’　Ｏ，：電源、ＧＮＤ：７−ス、Ｑｏ〜Ｑ
３：トランジスタ、Ｒｏ〜Ｒ６：抵抗、ＢＡＴＴ　ｌ　
：電池、ＺＤ□、　ＺＤ２ツェナーダイオード。1 and 2 are conventional memory backup power supply circuits, FIG. 3 is a memory backup power supply path showing an embodiment of the present invention, and BP is a power supply circuit in which commercial power is rectified and stabilized. Eo, E' O,: Power supply, GND: 7-S, Qo~Q
3: Transistor, Ro~R6: Resistor, BATT l
:Battery, ZD□, ZD2 Zener diode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ＩＣメモリ素子を有する装置の電源回路において通常使
用の電源と電池とを有し、通常使用の電源が印加されて
いる時にはオンとなり、該電源が基準電圧より低くなっ
た時にはオフとなる第１のスイッチング素子と第１の定
電圧素子とダイオードからなる第１手段と前記第１のス
イッチング素子がオンの時にはオフとなり、該第１のス
イッチング素子がオフの時には前記電池の電源によりオ
ンとなるが該電池電圧が基準電圧より低くなった時には
オフとなる第２のスイッチング素子と第２の定電圧素子
からなる第２手段と前記第２のスイ−ツチング素子がオ
ンの時にはオンとなり、該電池により前記装置全体への
電源を供給し、該第２のスイッチング素子がオフの時に
はオフとなる第３のスイッチング素子からなる第３手段
とを有機的に接続して該第３のスイッチング素子がオフ
の時はＩＣメモリ素子にのみ該電池の電源を供給するよ
うになしたメモリバックアップ電源回路。A first power supply circuit for a device having an IC memory element, which has a normally used power source and a battery, is turned on when the normally used power is applied, and is turned off when the power source becomes lower than a reference voltage. When the first means consisting of a switching element, a first constant voltage element, and a diode and the first switching element are on, it is turned off, and when the first switching element is off, it is turned on by the power source of the battery. A second means consisting of a second switching element and a second constant voltage element turns off when the battery voltage becomes lower than the reference voltage, and turns on when the second switching element is turned on. organically connected to third means comprising a third switching element that supplies power to the entire device and is turned off when the second switching element is turned off, and when the third switching element is turned off; A memory backup power supply circuit that supplies power from the battery only to an IC memory element.
JP10633582U 1982-07-15 1982-07-15 Memory backup power supply circuit Pending JPS5915131U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10633582U JPS5915131U (en) 1982-07-15 1982-07-15 Memory backup power supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10633582U JPS5915131U (en) 1982-07-15 1982-07-15 Memory backup power supply circuit

Publications (1)

Publication Number Publication Date
JPS5915131U true JPS5915131U (en) 1984-01-30

Family

ID=30248878

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10633582U Pending JPS5915131U (en) 1982-07-15 1982-07-15 Memory backup power supply circuit

Country Status (1)

Country Link
JP (1) JPS5915131U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0341392U (en) * 1989-08-31 1991-04-19
JP2013172547A (en) * 2012-02-21 2013-09-02 Nippon Telegr & Teleph Corp <Ntt> Switching-device and dc power-feed system using the device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53121509A (en) * 1977-03-31 1978-10-24 Toshiba Corp Radio receiver featuring selective calling function
JPS58195912A (en) * 1982-05-11 1983-11-15 Omron Tateisi Electronics Co Data holding device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53121509A (en) * 1977-03-31 1978-10-24 Toshiba Corp Radio receiver featuring selective calling function
JPS58195912A (en) * 1982-05-11 1983-11-15 Omron Tateisi Electronics Co Data holding device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0341392U (en) * 1989-08-31 1991-04-19
JP2013172547A (en) * 2012-02-21 2013-09-02 Nippon Telegr & Teleph Corp <Ntt> Switching-device and dc power-feed system using the device

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