Patents by Inventor Sai-Wang Sin

Sai-Wang Sin 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).

  • Limit cycle oscillation reduction for digital low dropout regulators
    Patent number: 9946281
    Abstract: A method achieves minimum limit cycle oscillation (LCO) amplitude of a digital low dropout regulator (D-LDO) by adding auxiliary unit power transistors in parallel with the main PMOS array with selected unit strength and LCO mode. An improved D-LDO with reduced LCO amplitude includes an auxiliary power transistor array in selected strength driven by an output of a comparator in parallel with a main power transistor array.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: April 17, 2018
    Assignee: University of Macau
    Inventors: Mo Huang, Yan Lu, Sai-Wang Sin, Seng-Pan U, Rui Paulo da Silva Martins