Patents by Inventor KE-MING SU

KE-MING SU 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).

  • Programmable low dropout linear regulator
    Patent number: 8648582
    Abstract: The present invention provides a programmable low dropout linear regulator using a reference voltage to convert an input voltage into a regulated voltage according to a control signal. The programmable low dropout linear regulator includes an operational amplifier having a negative input coupled to receive the reference voltage, a first transistor having a gate coupled to an output terminal of the operational amplifier and a first source/drain coupled to an output terminal of the regulated voltage, a first impedance coupled between a positive input of the operational amplifier and the output terminal of the regulated voltage, and a second impedance coupled between the positive input of the operational amplifier and a ground. The second impedance includes a second transistor having a gate coupled to receive the control signal.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: February 11, 2014
    Assignee: National Chung Cheng University
    Inventors: Chung-Hsun Huang, Ke-Ming Su
  • PROGRAMMABLE LOW DROPOUT LINEAR REGULATOR
    Publication number: 20120105047
    Abstract: The present invention provides a programmable low dropout linear regulator using a reference voltage to convert an input voltage into a regulated voltage according to a control signal. The programmable low dropout linear regulator includes an operational amplifier having a negative input coupled to receive the reference voltage, a first transistor having a gate coupled to an output terminal of the operational amplifier and a first source/drain coupled to an output terminal of the regulated voltage, a first impedance coupled between a positive input of the operational amplifier and the output terminal of the regulated voltage, and a second impedance coupled between the positive input of the operational amplifier and a ground. The second impedance includes a second transistor having a gate coupled to receive the control signal.
    Type: Application
    Filed: December 27, 2010
    Publication date: May 3, 2012
    Applicant: NATIONAL CHUNG CHENG UNIVERSITY
    Inventors: CHUNG-HSUN HUANG, KE-MING SU