Patents by Inventor NATTORN PONGRATANANKUL

NATTORN PONGRATANANKUL 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).

  • Voltage regulator including constant loop gain control
    Patent number: 8575908
    Abstract: A voltage regulation circuit includes a power stage for generating a regulated output voltage responsive to an input voltage and at least one PWM signal. A voltage divider circuit is connected to the output of the power stage and generates a feedback voltage. First circuitry generates the at least one PWM signal responsive to a voltage error signal, a filtered output voltage signal and a ramp voltage signal. The filtered output voltage is used for substantially removing loop gain change caused by the voltage divider circuit. A voltage compensation circuit generates the voltage error signal responsive to a feedback voltage and a reference voltage.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: November 5, 2013
    Assignee: Intersil Americas LLC
    Inventors: Weihong Qiu, Shangyang Xiao, Nattorn Pongratanankul
  • VOLTAGE REGULATOR INCLUDING CONSTANT LOOP GAIN CONTROL
    Publication number: 20100072964
    Abstract: A voltage regulation circuit includes a power stage for generating a regulated output voltage responsive to an input voltage and at least one PWM signal. A voltage divider circuit is connected to the output of the power stage and generates a feedback voltage. First circuitry generates the at least one PWM signal responsive to a voltage error signal, a filtered output voltage signal and a ramp voltage signal. The filtered output voltage is used for substantially removing loop gain change caused by the voltage divider circuit. A voltage compensation circuit generates the voltage error signal responsive to a feedback voltage and a reference voltage.
    Type: Application
    Filed: August 11, 2009
    Publication date: March 25, 2010
    Applicant: INTERSIL AMERICAS INC.
    Inventors: WEIHONG QIU, SHANGYANG XIAO, NATTORN PONGRATANANKUL