CIRCUIT DESTINE A LA SYNCHRONISATION D'UN CONTROLEUR DE CIRCUIT A CANAUX MULTIPLES

• Main Author: JOSEPH FRANCIS WRINN, LAWRENCE DANIEL HELLER, JIANN-NENG CHEN ET JACQUELINE NADINE BRENNER
• Format: Patent
• Language: French
• Published: 07.05.1987
• Edition: 4
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; PULSE TECHNIQUE; TESTING

CIRCUIT DE RETARD AJUSTABLE A SYNCHRONISATION RAPIDE POUR UN CONTROLEUR A CANAUX MULTIPLES UTILISANT UNE IMPULSION DE TEMPORISATION QUI A ATTEINT L'EXTREMITE D'UNE VOIE DONNEE DANS LE CONTROLEUR POUR DECLENCHER L'IMPULSION DE TEMPORISATION SUIVANTE D'UN GENERATEUR DE TEMPORISATION, CE QUI FOURNIT DES IMPULSIONS DE TEMPORISATION OSCILLANTES PRESENTANT UNE FREQUENCE ASSOCIEE LIEE AU RETARD DE PROPAGATION ASSOCIE A LA VOIE PARTICULIERE, COMPARANT LA FREQUENCE ASSOCIEE A UNE FREQUENCE DE REFERENCE ET REGLANT UN RETARD FOURNI DANS LA VOIE JUSQU'A CE QUE LA FREQUENCE ASSOCIEE CORRESPONDE A UNE FREQUENCE SOUHAITEE. Quickly synchronizing adjustable delay circuits for a multiple channel tester by using a timing pulse that has reached the end of a given path in the tester to trigger the following timing pulse of a timing generator, thereby providing oscillating timing pulses having an associated frequency related to the propagation delay associated with the particular path, comparing the associated frequency with a reference frequency and adjusting a delay provided in the path until the associated frequency matches a desired frequency.