Patents by Inventor JON CRONK

JON CRONK 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).

  • Reference voltage based equivalent series resistance (ESR) emulation for constant on-time (COT) control of buck regulators
    Patent number: 8476882
    Abstract: The present invention uses a reference voltage that varies within a Pulse Width Modulation (PWM) cycle to generate the PWM signal. This allows for stability in the feedback of Constant On-Time (COT) control for buck controllers when low Equivalent Series Resistance (ESR) capacitors are used as the output capacitor. The reference voltage is adjusted using features of a PWM cycle in a voltage mode without using external inductor current information.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: July 2, 2013
    Assignee: Exar Corporation
    Inventors: Jia Luo, Jon Cronk, Chuong Nguyen
  • REFERENCE VOLTAGE BASED EQUIVALENT SERIES RESISTANCE (ESR) EMULATION FOR CONSTANT ON-TIME (COT) CONTROL OF BUCK REGULATORS
    Publication number: 20120081094
    Abstract: The present invention uses a reference voltage that varies within a Pulse Width Modulation (PWM) cycle to generate the PWM signal. This allows for stability in the feedback of Constant On-Time (COT) control for buck controllers when low Equivalent Series Resistance (ESR) capacitors are used as the output capacitor. The reference voltage is adjusted using features of a PWM cycle in a voltage mode without using external inductor current information.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 5, 2012
    Applicant: EXAR CORPORATION
    Inventors: JIA LUO, JON CRONK, CHUONG NGUYEN