FR2449898A1 - Dispositif pour detecter les variations brusques d'une tension ou d'un courant continus de valeur moyenne fixe ou lentement variable - Google Patents

Dispositif pour detecter les variations brusques d'une tension ou d'un courant continus de valeur moyenne fixe ou lentement variable

Info

Publication number
FR2449898A1
FR2449898A1 FR7904624A FR7904624A FR2449898A1 FR 2449898 A1 FR2449898 A1 FR 2449898A1 FR 7904624 A FR7904624 A FR 7904624A FR 7904624 A FR7904624 A FR 7904624A FR 2449898 A1 FR2449898 A1 FR 2449898A1
Authority
FR
France
Prior art keywords
resistor
capacitor
current flow
sense current
differential input
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
FR7904624A
Other languages
English (en)
French (fr)
Other versions
FR2449898B3 (OSRAM
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.)
MENARD JEAN CLAUDE
Original Assignee
MENARD JEAN CLAUDE
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 MENARD JEAN CLAUDE filed Critical MENARD JEAN CLAUDE
Priority to FR7904624A priority Critical patent/FR2449898A1/fr
Publication of FR2449898A1 publication Critical patent/FR2449898A1/fr
Application granted granted Critical
Publication of FR2449898B3 publication Critical patent/FR2449898B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16585—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 for individual pulses, ripple or noise and other applications where timing or duration is of importance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/12—Measuring rate of change

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
FR7904624A 1979-02-23 1979-02-23 Dispositif pour detecter les variations brusques d'une tension ou d'un courant continus de valeur moyenne fixe ou lentement variable Granted FR2449898A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7904624A FR2449898A1 (fr) 1979-02-23 1979-02-23 Dispositif pour detecter les variations brusques d'une tension ou d'un courant continus de valeur moyenne fixe ou lentement variable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7904624A FR2449898A1 (fr) 1979-02-23 1979-02-23 Dispositif pour detecter les variations brusques d'une tension ou d'un courant continus de valeur moyenne fixe ou lentement variable

Publications (2)

Publication Number Publication Date
FR2449898A1 true FR2449898A1 (fr) 1980-09-19
FR2449898B3 FR2449898B3 (OSRAM) 1981-11-20

Family

ID=9222353

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7904624A Granted FR2449898A1 (fr) 1979-02-23 1979-02-23 Dispositif pour detecter les variations brusques d'une tension ou d'un courant continus de valeur moyenne fixe ou lentement variable

Country Status (1)

Country Link
FR (1) FR2449898A1 (OSRAM)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322734A1 (de) * 1987-12-24 1989-07-05 Licentia Patent-Verwaltungs-GmbH Anordnung zum Umsetzen von einer innerhalb eines grossen Bereichs veränderlichen Spannung in ein binäres Informationssignal
FR2641083A1 (OSRAM) * 1988-12-22 1990-06-29 Sgs Thomson Microelectronics
FR2655737A1 (fr) * 1989-12-08 1991-06-14 Sgs Thomson Microelectronics Detecteur de variation rapide d'alimentation de circuit integre.
EP0957595A3 (en) * 1998-05-14 2004-02-04 Nec Corporation Signal-to-noise ratio monitoring apparatus and method in optical signals

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322734A1 (de) * 1987-12-24 1989-07-05 Licentia Patent-Verwaltungs-GmbH Anordnung zum Umsetzen von einer innerhalb eines grossen Bereichs veränderlichen Spannung in ein binäres Informationssignal
FR2641083A1 (OSRAM) * 1988-12-22 1990-06-29 Sgs Thomson Microelectronics
EP0388569A3 (fr) * 1988-12-22 1991-06-05 STMicroelectronics S.A. Circuit de détection de chute de tension d'alimentation et de réarmement d'un circuit d'initialisation
US5027006A (en) * 1988-12-22 1991-06-25 Sgs-Thomson Microelectronics S.A. Circuit for detecting a supply voltage drop and for resetting an initialization circuit
FR2655737A1 (fr) * 1989-12-08 1991-06-14 Sgs Thomson Microelectronics Detecteur de variation rapide d'alimentation de circuit integre.
EP0450245A3 (en) * 1989-12-08 1991-10-23 Sgs Thomson Microelectronics Detector for rapid variations of the supply voltage of an integrated circuit
US5144515A (en) * 1989-12-08 1992-09-01 SCS-Thomson Microelectronics S.A. Detector of fast variation in the supply of integrated circuits
EP0957595A3 (en) * 1998-05-14 2004-02-04 Nec Corporation Signal-to-noise ratio monitoring apparatus and method in optical signals

Also Published As

Publication number Publication date
FR2449898B3 (OSRAM) 1981-11-20

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Legal Events

Date Code Title Description
ST Notification of lapse