Patent ID: 7629758
Filing Date: 2009-12-08
Classification: H02P

Abstract:
1. A driving apparatus for a single phase motor, comprising: a driving transistor unit coupled to a control unit and a single phase coil, wherein the driving transistor unit provides a first driving current with flowing direction to the single phase coil according to a set of first driving signals; an auxiliary driving transistor unit coupled to the control unit and the single phase coil, wherein the auxiliary driving transistor unit provides a second driving current whose flowing direction is the same as the first driving current to the single phase coil according to a set of second driving signals when the rotating device of the single phase motor rotates to a phase-switching point; and said control unit outputting the set of first driving signals and the set of second driving signals, wherein the set of first driving signals is started after a rotating device of the single phase motor rotates to the phase-switching point, and is shut down before the rotating device of the single phase motor rotates to the next phase-switching point, and the set of second driving signals is started or shut down when the rotating device of the single phase motor rotates to the phase-switching point.