Patents by Inventor Philip Kwok Tai Mok

Philip Kwok Tai Mok 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).

  • Single-transistor-control low-dropout regulator
    Patent number: 7285942
    Abstract: A low-dropout regulator with a single-transistor-control providing improved transient response and stability is disclosed. The single-transistor-control provides a dynamic resistance at the output of the regulator for minimizing undershoot and overshoot, and hence improves transient response. Since the single-control transistor reduces the output resistance of the regulator, the output pole is pushed to a sufficiently high frequency without affecting stability. Therefore, the limited choice of combinations of the output capacitance and its equivalent-series-resistance is substantially relaxed.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: October 23, 2007
    Inventors: Tsz Yin Man, Chi Yat Leung, Ka Nang Leung, Philip Kwok Tai Mok, John Man Sun Chan
  • Single transistor-control low-dropout regulator
    Patent number: RE42335
    Abstract: A low-dropout regulator with a single-transistor-control providing improved transient response and stability is disclosed. The single-transistor-control provides a dynamic resistance at the output of the regulator for minimizing undershoot and overshoot, and hence improves transient response. Since the single-control transistor reduces the output resistance of the regulator, the output pole is pushed to a sufficiently high frequency without affecting stability. Therefore, the limited choice of combinations of the output capacitance and its equivalent-series-resistance is substantially relaxed.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: May 10, 2011
    Assignee: The Hong Kong University of Science and Technology
    Inventors: Tsz Yin Man, Chi Yat Leung, Ka Nang Leung, Philip Kwok Tai Mok, John Man Sun Chan