ELECTRIC MOTOR SPEED GOVERNOR INCORPORATING FEEDBACK CIRCUIT Russian patent published in 1999 - IPC

FIELD: electric drives; governing speed of motors for domestic appliances by using electronic devices. SUBSTANCE: motor speed governor incorporating feedback circuit has triac and capacitor-resistor voltage divider built up of series- interconnected current-limiting capacitor and low-value variable resistor. Capacitor lead is connected to common point of connection of triac anode and motor lead opposing lead connected to first power conductor; variable resistor lead is connected to common point of connection of triac cathode and second power conductor. Central lead of low-value variable resistor is connected to triac gate electrode. EFFECT: simplified design of speed governor at adequate automatic control range. 1 dwg