Patent ID: 6765359
Filing Date: 2004-07-20
Classification: H02P

Abstract:
A controlling device for an AC/DC driven motor, used for a motor comprising a permanent magnet, a first coil and a second coil, the controlling device comprising:an AC/DC converting unit, for receiving an AC power source to convert the AC power source into a high DC voltage; a voltage stabilizing unit, coupled to the AC/DC converting unit, for receiving the high DC voltage to convert the high DC voltage into a low DC voltage; a phase detecting/controlling unit, coupled to the motor and the voltage stabilizing unit, for receiving the low DC voltage as a work voltage, and for detecting a poiarity of the permanent magnet to output a first detecting and a second detecting signals accordingly; and a high voltage driving unit, coupled to the AC/DC converting unit, the phase detecting/controlling unit, and the motor, for receiving the high DC voltage as a work voltage, and for receiving the first detecting and the second detecting signals to output accordingly a first driving and a second driving signal so as to drive the first and the second coils respectively: wherein the high voltage driving unit further comprises: a first current amplifying device for receiving and amplifying the first detecting signal to output the first driving signal to drive the first coil; and a second current amplifying device, for receiving and amplifying the second detecting signal to output the second driving signal to drive the second coil.