Patents by Inventor Joshru Lee

Joshru Lee 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).

  • Pulse width modulator and loading system thereof
    Patent number: 7030594
    Abstract: A pulse width modulator and a loading system thereof are disclosed. The pulse width modulator comprises an amplitude-adjustable triangle-wave generator, an error signal generator and a pulse signal generator. The triangle-wave generator is adapted to perform an amplitude operation according to the reference voltage and the feedback voltage for generating an amplitude-adjustable triangle wave according to a variation of the feedback voltage. The error signal generator is adapted to perform an error operation according to the feedback voltage and the reference voltage for outputting an error signal. The pulse signal generator is adapted to receive and compare the error signal and the amplitude-adjustable triangle wave for outputting a pulse controlling signal for the loading system.
    Type: Grant
    Filed: January 5, 2004
    Date of Patent: April 18, 2006
    Assignee: Beyond Innovation Technology Co., Ltd.
    Inventors: Joshru Lee, Andre Yu
  • [PULSE WIDTH MODULATOR AND LOADING SYSTEM THEREOF]
    Publication number: 20050104570
    Abstract: A pulse width modulator and a loading system thereof are disclosed. The pulse width modulator comprises an amplitude-adjustable triangle-wave generator, an error signal generator and a pulse signal generator. The triangle-wave generator is adapted to perform an amplitude operation according to the reference voltage and the feedback voltage for generating an amplitude-adjustable triangle wave according to a variation of the feedback voltage. The error signal generator is adapted to perform an error operation according to the feedback voltage and the reference voltage for outputting an error signal. The pulse signal generator is adapted to receive and compare the error signal and the amplitude-adjustable triangle wave for outputting a pulse controlling signal for the loading system.
    Type: Application
    Filed: January 5, 2004
    Publication date: May 19, 2005
    Inventors: Joshru Lee, Andre Yu