Patents by Inventor Greg Wardle

Greg Wardle 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).

  • DC-DC converter
    Patent number: 9780653
    Abstract: A DC-DC converter having a coupling network is provided, in which the coupling network is so configured as to forcibly add a noise source to a feedback output voltage of the DC-DC converter. The coupling network includes one coupling resistor and two coupling capacitors to include the switching voltage of a power switch and inductor output voltage into the output voltage, and transmit the result together with the feedback output voltage to the comparator. Accordingly, it is easier to compare the reference voltage and the feedback voltage, and stably maintain the output voltage of the DC-DC converter operating in constant on-time (COT).
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: October 3, 2017
    Assignee: Magnachip Semiconductor, Ltd.
    Inventors: Tim Yu, Greg Wardle
  • DC-DC CONVERTER
    Publication number: 20150108954
    Abstract: A DC-DC converter having a coupling network is provided, in which the coupling network is so configured as to forcibly add a noise source to a feedback output voltage of the DC-DC converter. The coupling network includes one coupling resistor and two coupling capacitors to include the switching voltage of a power switch and inductor output voltage into the output voltage, and transmit the result together with the feedback output voltage to the comparator. Accordingly, it is easier to compare the reference voltage and the feedback voltage, and stably maintain the output voltage of the DC-DC converter operating in constant on-time (COT).
    Type: Application
    Filed: April 23, 2014
    Publication date: April 23, 2015
    Applicant: MAGNACHIP SEMICONDUCTOR, LTD.
    Inventors: Tim YU, Greg Wardle
  • DC-DC converter
    Patent number: RE49184
    Abstract: A DC-DC converter having a coupling network is provided, in which the coupling network is so configured as to forcibly add a noise source to a feedback output voltage of the DC-DC converter. The coupling network includes one coupling resistor and two coupling capacitors to include the switching voltage of a power switch and inductor output voltage into the output voltage, and transmit the result together with the feedback output voltage to the comparator. Accordingly, it is easier to compare the reference voltage and the feedback voltage, and stably maintain the output voltage of the DC-DC converter operating in constant on-time (COT).
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: August 23, 2022
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Tim Yu, Greg Wardle