Electronic power supply for a synchronous motor with...

Details Electronic power supply for a synchronous motor with... Electronic power supply for a synchronous motor with...

2005-01-25

2005-01-25

Martin, David (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

C318S786000, C318S132000, C318S434000, C323S210000, C323S211000, C323S241000

Reexamination Certificate

active

06847183

ABSTRACT:
A low noise synchronous motor including a permanent-magnet rotor and a stator with at least two pairs of stator poles and corresponding winding further includes an electronic power supply comprising a capacitor that is serially connected to one winding of only one pair of poles to act as a 90° phase shifter. A static switch that is driven by an output of the electronic power device is connected to drive another winding of said two pairs. The static switch is controlled by a sensor detecting the position at the rotor.

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