Offset PWM signals for multiphase motor

Details Offset PWM signals for multiphase motor Offset PWM signals for multiphase motor

2007-03-20

2007-03-20

Leykin, Rita (Department: 2837)

Electricity: motive power systems

Induction motor systems

Primary circuit control

C318S810000, C318S807000

Reexamination Certificate

active

11346027

ABSTRACT:
A multi phase motor includes a switching array for interconnecting a power source to each phase. A current sensor senses current supplied from the power source via the switching array to the winding and a controller generates offset PWM signals for controlling the switching array to supply power to each of the phases of the winding. The offset timing allows the individual phase currents to be determined from a single current sensor.

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