Electronic thermostatic control system - has precision probe supplying signal to comparator in voltage regulated circuit

摘要

The thermostat includes an integrated circuit 5-volt voltage regulator and multiplex digital display. A tem. converter converts degrees kelvin into centigrade for the display, and a control displays the measured temp. An AC to DC converter includes a transformer with two secondary windings and diodes, and a fuse in order to provide the low voltage to the regulator. A precision probe and temp. measuring circuit provide the information to the control and to a comparator also receiving a reference signal.