Semiconductor switching system to feed pulsed current to electric motor used in handtools, kitchen equipment, etc.,

摘要

The circuit, which is fed by a d.c. battery, consists of a control circuit and four electronic switches: two which can connect one terminal of the motor to one or other terminal of the battery and two which can connect the other terminal of the motor to one or other terminal of the battery. A mechanical switch can also be used to disconnect the battery from the switching circuit.