JPS5396443A - Detecting circuit for instanteneous power failure - Google Patents

Detecting circuit for instanteneous power failure

Info

Publication number
JPS5396443A
JPS5396443A JP1070577A JP1070577A JPS5396443A JP S5396443 A JPS5396443 A JP S5396443A JP 1070577 A JP1070577 A JP 1070577A JP 1070577 A JP1070577 A JP 1070577A JP S5396443 A JPS5396443 A JP S5396443A
Authority
JP
Japan
Prior art keywords
power failure
instanteneous
detecting circuit
capacitor
failure occurs
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
JP1070577A
Other languages
Japanese (ja)
Inventor
Tatsumasa Onuma
Yuji Miura
Michio Kagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1070577A priority Critical patent/JPS5396443A/en
Publication of JPS5396443A publication Critical patent/JPS5396443A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Current Or Voltage (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE: To generate reliable reset signals even when instanteous power failure occurs by detecting the voltage drop of the power supply when the power failure occurs to turn on a transistor connected in parallel to a capacitor in an integral circuit to discharge instanteneously the capacitor.
COPYRIGHT: (C)1978,JPO&Japio
JP1070577A 1977-02-04 1977-02-04 Detecting circuit for instanteneous power failure Pending JPS5396443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1070577A JPS5396443A (en) 1977-02-04 1977-02-04 Detecting circuit for instanteneous power failure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1070577A JPS5396443A (en) 1977-02-04 1977-02-04 Detecting circuit for instanteneous power failure

Publications (1)

Publication Number Publication Date
JPS5396443A true JPS5396443A (en) 1978-08-23

Family

ID=11757702

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1070577A Pending JPS5396443A (en) 1977-02-04 1977-02-04 Detecting circuit for instanteneous power failure

Country Status (1)

Country Link
JP (1) JPS5396443A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5551647U (en) * 1978-09-28 1980-04-05
JPS56140264A (en) * 1980-04-03 1981-11-02 Chino Works Ltd Detecting circuit of power interruption and recovery thereof
JPS59116558A (en) * 1982-11-30 1984-07-05 Matsushita Electric Works Ltd Resetting circuit for voltage monitor of battery power source

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5551647U (en) * 1978-09-28 1980-04-05
JPS56140264A (en) * 1980-04-03 1981-11-02 Chino Works Ltd Detecting circuit of power interruption and recovery thereof
JPS59116558A (en) * 1982-11-30 1984-07-05 Matsushita Electric Works Ltd Resetting circuit for voltage monitor of battery power source
JPH0557544B2 (en) * 1982-11-30 1993-08-24 Matsushita Electric Works Ltd

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