Patent ID: 11881801
Assignee: REGAL BELOIT AMERICA, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A control system comprising:
a line-voltage terminal configured to receive an alternating current (AC) voltage;
a motor having a main winding and a start winding, the main winding and the start winding connected to a common node;
a motor-drive circuit and a control module configured to control a speed of the motor;
a first switch configured to selectively couple the main winding to the line-voltage terminal or the motor-drive circuit;
a second switch configured to selectively couple the common node of the main winding and the start winding to the line-voltage terminal or the motor-drive circuit; and
a third switch configured to selectively couple the start winding to a capacitor or the motor-drive circuit.