METHOD FOR RESETTING MICOM

摘要

a power supply(2) for supplying stable DC current to a micom(1); an external interrupt generator(3) for transforming a half rectified ripples to spherical signals and providing it to an external interrupt terminal; a reset unit(4) for resetting the micom. In the device, every low level period of spherical signals inputted through an external interrupt terminal (INT) is counted and the micro computer is reset by a control signal if a counted low level period is longer than a predetermined time of being under a certain DC voltage level at an instant power outage.