CURRENT STABILIZER Russian patent published in 2003 - IPC

FIELD: electrical engineering. SUBSTANCE: stabilizer of excitation current of D C motor is related to conversion equipment and can be employed to regulate and stabilize voltage of electrical machine generators. It includes full-wave rectifier to which output additional resistor and excitation winding of electric motor shunted by inversed diode are connected in series through thyristor. Thyristor is controlled by phase-shifting RC network placed in parallel with thyristor. Common connection point of resistor and capacitor of network is connected to controlling electrode of thyristor through switching diode. For realization of simple and efficient control unit second lead-out of capacitor of RC network is connected to cathode of thyristor through diode and resistor connected in parallel and collector- emitter junction of optotransistor which controlling light-emitting diode is connected in parallel to additional resistor in network of excitation winding. EFFECT: possibility of regulation in required range with the aid of simple and most efficient control unit. 1 dwg