FR2424582A1 - Procede et dispositif de changement de frequence d'une alimentation periodique d'un element d'impedance en cas de modification de cette impedance - Google Patents

Procede et dispositif de changement de frequence d'une alimentation periodique d'un element d'impedance en cas de modification de cette impedance

Info

Publication number
FR2424582A1
FR2424582A1 FR7812636A FR7812636A FR2424582A1 FR 2424582 A1 FR2424582 A1 FR 2424582A1 FR 7812636 A FR7812636 A FR 7812636A FR 7812636 A FR7812636 A FR 7812636A FR 2424582 A1 FR2424582 A1 FR 2424582A1
Authority
FR
France
Prior art keywords
multivibrator
voltage
power supply
capacitor voltage
load impedance
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
FR7812636A
Other languages
English (en)
Other versions
FR2424582B1 (fr
Inventor
Jean-Pierre Gaslonde
Jean-Pierre Ricouard
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.)
Radiotechnique Compelec RTC SA
Original Assignee
Radiotechnique Compelec RTC SA
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 Radiotechnique Compelec RTC SA filed Critical Radiotechnique Compelec RTC SA
Priority to FR7812636A priority Critical patent/FR2424582A1/fr
Publication of FR2424582A1 publication Critical patent/FR2424582A1/fr
Application granted granted Critical
Publication of FR2424582B1 publication Critical patent/FR2424582B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q11/00—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
    • B60Q11/005—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00 for lighting devices, e.g. indicating if lamps are burning or not
    • B60Q11/007—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00 for lighting devices, e.g. indicating if lamps are burning or not the lighting devices indicating change of drive direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

PROCEDE ET DISPOSITIF DE CHANGEMENT DE FREQUENCE, DE F A FF, D'UNE ALIMENTATION PERIODIQUE D'UN ELEMENT D'IMPEDANCE EN CAS DE MODIFICATION DE CETTE IMPEDANCE. A CHAQUE PERIODE DE CHARGE ET DE DECHARGE D'UN CONDENSATEUR 2 ENTRE DES TENSIONS V ET V, L'IMPEDANCE 1 EST COMPAREE PAR UN COMPARATEUR 5 A UNE LIMITE DETERMINEE, A L'INSTANT OU LA TENSION AUX BORNES DU CONDENSATEUR 2 PASSE PAR V TELLE QUE LA CHARGE ET LA DECHARGE ENTRE V ET V CORRESPONDENT A F, LA REPONSE DU COMPARATEUR 4 ETANT APPLIQUEE A UN MULTIVIBRATEUR 3 DE COMMANDE DES CHARGES ET DECHARGES. ALIMENTATIONS PERIODIQUES A FREQUENCE DETERMINEE.
FR7812636A 1978-04-28 1978-04-28 Procede et dispositif de changement de frequence d'une alimentation periodique d'un element d'impedance en cas de modification de cette impedance Granted FR2424582A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7812636A FR2424582A1 (fr) 1978-04-28 1978-04-28 Procede et dispositif de changement de frequence d'une alimentation periodique d'un element d'impedance en cas de modification de cette impedance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7812636A FR2424582A1 (fr) 1978-04-28 1978-04-28 Procede et dispositif de changement de frequence d'une alimentation periodique d'un element d'impedance en cas de modification de cette impedance

Publications (2)

Publication Number Publication Date
FR2424582A1 true FR2424582A1 (fr) 1979-11-23
FR2424582B1 FR2424582B1 (fr) 1980-09-26

Family

ID=9207714

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7812636A Granted FR2424582A1 (fr) 1978-04-28 1978-04-28 Procede et dispositif de changement de frequence d'une alimentation periodique d'un element d'impedance en cas de modification de cette impedance

Country Status (1)

Country Link
FR (1) FR2424582A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2505274A1 (fr) * 1981-05-07 1982-11-12 Lucas Industries Ltd Systeme indicateur de direction pour un vehicule

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2090372A1 (fr) * 1970-05-29 1972-01-14 Philips Nv
FR2198427A5 (fr) * 1972-07-24 1974-03-29 Bosch Gmbh Robert
FR2357404A1 (fr) * 1976-07-08 1978-02-03 Klaxon Sa Centrale clignotante pour vehicules automobiles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2090372A1 (fr) * 1970-05-29 1972-01-14 Philips Nv
FR2198427A5 (fr) * 1972-07-24 1974-03-29 Bosch Gmbh Robert
FR2357404A1 (fr) * 1976-07-08 1978-02-03 Klaxon Sa Centrale clignotante pour vehicules automobiles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2505274A1 (fr) * 1981-05-07 1982-11-12 Lucas Industries Ltd Systeme indicateur de direction pour un vehicule

Also Published As

Publication number Publication date
FR2424582B1 (fr) 1980-09-26

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Legal Events

Date Code Title Description
ST Notification of lapse