Patents by Inventor Kamaljit Thandi

Kamaljit Thandi 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).

  • Soft-start for resonant converters
    Patent number: 9929638
    Abstract: A start-up circuit for a resonant converter is arranged such that, during start-up of the resonant converter, the start-up circuit provides a drive signal that is to be applied to a switching transistor of the resonant converter and that has a variable duty cycle and a variable frequency. A converter includes a voltage source, a capacitor connected to the voltage source, a first switching transistor connected to the voltage source, a transformer connected to the capacitor, and a start-up circuit arranged to drive the first switching transistor with the drive signal during start-up of the converter. A start-up method for a resonant converter including a first switching transistor includes driving the first switching transistor with a variable duty cycle and a variable frequency.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: March 27, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Jahangir Afsharian, Takashi Hara, Kamaljit Thandi, Zhihua Yang
  • SOFT-START FOR RESONANT CONVERTERS
    Publication number: 20150280545
    Abstract: A start-up circuit for a resonant converter is arranged such that, during start-up of the resonant converter, the start-up circuit provides a drive signal that is to be applied to a switching transistor of the resonant converter and that has a variable duty cycle and a variable frequency. A converter includes a voltage source, a capacitor connected to the voltage source, a first switching transistor connected to the voltage source, a transformer connected to the capacitor, and a start-up circuit arranged to drive the first switching transistor with the drive signal during start-up of the converter. A start-up method for a resonant converter including a first switching transistor includes driving the first switching transistor with a variable duty cycle and a variable frequency.
    Type: Application
    Filed: November 8, 2013
    Publication date: October 1, 2015
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Jahangir Afsharian, Takashi Hara, Kamaljit Thandi, Zhihua Yang