CONTACTLESS DC MOTOR Russian patent published in 1997 - IPC

FIELD: controlled and non-controlled DC drives for various automatic control systems. SUBSTANCE: contactless DC motor has a two-phase winding, whose sections are connected in a bridge circuit, two rotor position pickups shifted in space relative to each other through 90 electrical degrees and connected to the electronic switching circuit. The electronic switching circuit is built around four power transistors connected across the respective diagonal of the two-phase motor winding bridge circuit. A network of parallel-connected resistor and capacitor is connected across each arm of the winding bridge circuit. EFFECT: improved design. 1 dwg