Morrison & Foerster LLP
Control of a permanent-magnet motor
A method of controlling a permanent-magnet motor that includes sequentially exciting and freewheeling a winding of the motor. The method includes varying the angle over which the winding is freewheeled in response to changes in speed of the motor. Additionally, a control system for a permanent-magnet motor, and a product incorporating the control system and motor.
Dyson Technology Limited
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Yu Andrew Charlton Tuncay
Chen Clothier Celik