公开(公告)号：US3560861A

公开(公告)日：1971-02-02

申请号：US3560861D

申请日：1969-01-16

Applicant: MOTOROLA INC

Inventor： MILLEKER WILLIAM ,  SEKULA RONALD J

IPC: G06F11/00 ,  G11C11/06 ,  H03K17/28

CPC classification number: G11C11/06007 ,  G06F11/00 ,  G06F11/002 ,  G11C11/00 ,  Y10T307/858

Abstract: THE ELECTRONIC SENSING SYSTEM SELECTIVELY ENERGIZES AN ELECTRICAL APPARATUS A PREDETERMINED TIME AFTER THE ELECTRICAL POWER IS APPLIED TO THE SYSTEM AND IN SYNCHRONISM WITH A SIGNAL INDICATING THE APPARATUS IS READY TO BE ENERGIZED. THE ELECTRICAL APPARATUS IS DE-ENERGIZED IN RESPONSE TO BOTH A SUDDEN DECREASE IN AMPLITUDE OF A MONITORED VOLTAGE WHICH ACTIVATES A TRIGGER CIRCUIT, AND IN SYNCHRONISM WITH A SUBSEQUENT SIGNAL INDICATING THE APPARATUS IS READY TO BE DE-ENERGIZED. A SENSING CIRCUIT COMPARES THE VOLTAGE BEING MONITORED WITH A REFERENCE DERIVED FROM THIS VOLTAGE TO ACTIVATE THE TRIGGER CIRCUIT.