Mechanical-electronic position indicator has microcontroller that detects potentiometer slider voltage, has digital output connected via converter to output stage, outputs watchdog signals to monitoring stages controlling supply voltage

摘要

The device has a potentiometer (R1) operated by an actuating rod (8), a microcontroller (16), an output stage (18) and a d.c. power supply (14). The microcontroller detects the potentiometer slider voltage as a digital value and has a digital output connected via a digital-to-analog converter to the output stage and outputs first and second watchdog signals to watchdog monitoring stages controlling the supply voltage.