Patents Assigned to Padauk Technology Co., Ltd., R.O.C.
  • Controller and method for adaptively adjusting motor driving current waveforms
    Patent number: 8159171
    Abstract: The present invention discloses a controller and a method for adaptively adjusting motor driving current waveforms. According to the present invention, the controller receives multiple different control parameters which may be determined according to the characteristics of a fan to be controlled, and adjusts the delayed ON time and advanced OFF time of a PWM driving signal based on the control parameters and the present rotation speed of the fan motor, so that the fan operates under an optimum driving current waveform.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: April 17, 2012
    Assignee: Padauk Technology Co., Ltd., R.O.C.
    Inventor: Mao-Hsin Cheng