Patents by Inventor Sze Main Wong

Sze Main Wong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10056857
    Abstract: A motor control system and associated method includes a transform component configured to receive current values associated with a motor being driven by the motor control system, and output rotating coordinate system values representing a flux generating component and a torque generating component of a current space vector. The motor control system and method further includes a control component configured to receive the flux generating component and the torque generating component of the current space vector, and generate motor control signals for driving the motor by performing a Cartesian to polar transform to obtain values associated with a rotating coordinate system followed by an angle addition to convert the rotating coordinate system values to values of a stationary coordinate system.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: August 21, 2018
    Assignee: Infineon Technologies AG
    Inventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
  • Patent number: 9660564
    Abstract: Representative implementations of devices and techniques provide optimized control of a three-phase AC motor. A field oriented control (FOC) arrangement uses optimization components and techniques to improve power efficiency of the motor, with fast control response over a full range of motor speeds.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: May 23, 2017
    Assignee: Infineon Technologies AG
    Inventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
  • Publication number: 20170054395
    Abstract: A motor control system and associated method includes a transform component configured to receive current values associated with a motor being driven by the motor control system, and output rotating coordinate system values representing a flux generating component and a torque generating component of a current space vector. The motor control system and method further includes a control component configured to receive the flux generating component and the torque generating component of the current space vector, and generate motor control signals for driving the motor by performing a Cartesian to polar transform to obtain values associated with a rotating coordinate system followed by an angle addition to convert the rotating coordinate system values to values of a stationary coordinate system.
    Type: Application
    Filed: August 29, 2016
    Publication date: February 23, 2017
    Inventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
  • Publication number: 20160359442
    Abstract: Representative implementations of devices and techniques provide optimized control of a three-phase AC motor. A field oriented control (FOC) arrangement uses optimization components and techniques to improve power efficiency of the motor, with fast control response over a full range of motor speeds.
    Type: Application
    Filed: May 9, 2014
    Publication date: December 8, 2016
    Applicant: Infineon Technologies AG
    Inventors: Tao ZHAO, Arno RABENSTEIN, Theng Kiong GAN, Choon Keat KOK, Sze Main WONG
  • Patent number: 9479099
    Abstract: The present disclosure relates to a motor control circuit and related method that includes a transform component configured to receive current values associated with a motor being driven by the motor control circuit, and output polar coordinate values representing a magnitude component and a direction component of a current space vector. The motor control circuit further includes a control component configured to receive the magnitude component and the direction component of the current space vector, and generate motor control signals for driving the motor.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: October 25, 2016
    Assignee: Infineon Technologies AG
    Inventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
  • Patent number: 9479084
    Abstract: A method of performing space vector modulation for PWM control for creating AC waveforms includes generating and sampling a reference signal to generate reference samples and performing a reference vector approximation to synthesize a reference vector associated with at least one of the reference samples. The reference vector approximation employs active vectors, one or more zero vectors, and one or more pseudo zero vectors in the formation thereof. Another method of performing space vector modulation (SVM) includes generating a reference signal and sampling the reference signal at a sampling frequency to generate a plurality of reference samples. The method also includes performing a reference vector approximation to synthesize a reference vector associated with at least one of the reference samples, wherein the reference vector approximation has a first portion that employs two adjacent active vectors and a remaining portion that employs two non-adjacent active vectors in the formation thereof.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: October 25, 2016
    Assignee: Infineon Technologies AG
    Inventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
  • Patent number: 9444382
    Abstract: A motor control system and associated method includes a transform component configured to receive current values associated with a motor being driven by the motor control system, and output rotating coordinate system values representing a flux generating component and a torque generating component of a current space vector. The motor control system and method further includes a control component configured to receive the flux generating component and the torque generating component of the current space vector, and generate motor control signals for driving the motor by performing a Cartesian to polar transform to obtain values associated with a rotating coordinate system followed by an angle addition to convert the rotating coordinate system values to values of a stationary coordinate system.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: September 13, 2016
    Assignee: Infineon Technologies AG
    Inventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
  • Patent number: 9130482
    Abstract: A method of performing space vector modulation for PWM control for creating AC waveforms includes generating and sampling a reference signal to generate reference samples and performing a reference vector approximation to synthesize a reference vector associated with at least one of the reference samples. The reference vector approximation employs active vectors, one or more zero vectors, and one or more pseudo zero vectors in the formation thereof. Another method of performing space vector modulation (SVM) includes generating a reference signal and sampling the reference signal at a sampling frequency to generate a plurality of reference samples. The method also includes performing a reference vector approximation to synthesize a reference vector associated with at least one of the reference samples, wherein the reference vector approximation has a first portion that employs two adjacent active vectors and a remaining portion that employs two non-adjacent active vectors in the formation thereof.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: September 8, 2015
    Assignee: Infineon Technologies AG
    Inventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
  • Publication number: 20140233262
    Abstract: A method of performing space vector modulation for PWM control for creating AC waveforms includes generating and sampling a reference signal to generate reference samples and performing a reference vector approximation to synthesize a reference vector associated with at least one of the reference samples. The reference vector approximation employs active vectors, one or more zero vectors, and one or more pseudo zero vectors in the formation thereof. Another method of performing space vector modulation (SVM) includes generating a reference signal and sampling the reference signal at a sampling frequency to generate a plurality of reference samples. The method also includes performing a reference vector approximation to synthesize a reference vector associated with at least one of the reference samples, wherein the reference vector approximation has a first portion that employs two adjacent active vectors and a remaining portion that employs two non-adjacent active vectors in the formation thereof.
    Type: Application
    Filed: August 28, 2013
    Publication date: August 21, 2014
    Applicant: Infineon Technologies AG
    Inventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
  • Publication number: 20140233289
    Abstract: A method of performing space vector modulation for PWM control for creating AC waveforms includes generating and sampling a reference signal to generate reference samples and performing a reference vector approximation to synthesize a reference vector associated with at least one of the reference samples. The reference vector approximation employs active vectors, one or more zero vectors, and one or more pseudo zero vectors in the formation thereof. Another method of performing space vector modulation (SVM) includes generating a reference signal and sampling the reference signal at a sampling frequency to generate a plurality of reference samples. The method also includes performing a reference vector approximation to synthesize a reference vector associated with at least one of the reference samples, wherein the reference vector approximation has a first portion that employs two adjacent active vectors and a remaining portion that employs two non-adjacent active vectors in the formation thereof.
    Type: Application
    Filed: August 28, 2013
    Publication date: August 21, 2014
    Applicant: Infineon Technologies AG
    Inventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
  • Publication number: 20140210387
    Abstract: A motor control system and associated method includes a transform component configured to receive current values associated with a motor being driven by the motor control system, and output rotating coordinate system values representing a flux generating component and a torque generating component of a current space vector. The motor control system and method further includes a control component configured to receive the flux generating component and the torque generating component of the current space vector, and generate motor control signals for driving the motor by performing a Cartesian to polar transform to obtain values associated with a rotating coordinate system followed by an angle addition to convert the rotating coordinate system values to values of a stationary coordinate system.
    Type: Application
    Filed: January 30, 2014
    Publication date: July 31, 2014
    Inventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
  • Publication number: 20140210386
    Abstract: The present disclosure relates to a motor control circuit and related method that includes a transform component configured to receive current values associated with a motor being driven by the motor control circuit, and output polar coordinate values representing a magnitude component and a direction component of a current space vector. The motor control circuit further includes a control component configured to receive the magnitude component and the direction component of the current space vector, and generate motor control signals for driving the motor.
    Type: Application
    Filed: January 30, 2014
    Publication date: July 31, 2014
    Inventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
  • Patent number: 8576183
    Abstract: Devices and methods for minimizing a number of I/O pins needed to control LED and touch sense operations are described and disclosed herein. In an embodiment, a method comprises controlling at least one light emitting diode (LED) element via a single pin, and controlling at least one touch sense element via the single pin. In an embodiment, a touch-sensitive light emitting diode (LED) display device comprises at least one LED element, at least one touch sense element, and a controller integrated in an integrated circuit (IC) and coupled to the at least one LED element and the at least one touch sense element via a single pin. The controller is configured to communicate via the pin with the at least one LED element and the at least one touch sense element.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: November 5, 2013
    Assignee: Infineon Technologies AG
    Inventors: Arno Rabenstein, Sze Main Wong
  • Publication number: 20110069013
    Abstract: Devices and methods for minimizing a number of I/O pins needed to control LED and touch sense operations are described and disclosed herein. In an embodiment, a method comprises controlling at least one light emitting diode (LED) element via a single pin, and controlling at least one touch sense element via the single pin. In an embodiment, a touch-sensitive light emitting diode (LED) display device comprises at least one LED element, at least one touch sense element, and a controller integrated in an integrated circuit (IC) and coupled to the at least one LED element and the at least one touch sense element via a single pin. The controller is configured to communicate via the pin with the at least one LED element and the at least one touch sense element.
    Type: Application
    Filed: September 23, 2009
    Publication date: March 24, 2011
    Applicant: Infineon Technologies AG
    Inventors: Arno Rabenstein, Sze Main Wong