Patents by Inventor Kaung Zin Htoo

Kaung Zin Htoo 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).

  • PD in PoE system having redundant PSE channel inputs
    Patent number: 9419807
    Abstract: A Powered Device (PD) in a PoE system has two input channels, each being coupled to a separate Power Sourcing Equipment (PSE) for increased reliability. A first PD controller is coupled to the first channel to perform hand-shaking and closes a first Power Good (PWRGD) switch when the PoE voltage is detected on the first channel. A second PD controller is coupled to the second channel to perform hand-shaking and closes a second PWRGD switch when the PoE voltage is detected on the second channel. A diode bridge couples both channels to a single regulating power supply that supplies power to a load. Auxiliary switches are controlled by the PWRGD signals so that only the first channel or the second channel is coupled to the diode bridge in the event that both channels receive the respective PoE voltages. Therefore, hot standby is provided using only one power supply.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: August 16, 2016
    Assignee: Linear Technology Corporation
    Inventors: Ryan Charles Huff, Jeffrey Lynn Heath, Kaung Zin Htoo, Kirk Tzukai Su
  • PD IN POE SYSTEM HAVING REDUNDANT PSE CHANNEL INPUTS
    Publication number: 20150019884
    Abstract: A Powered Device (PD) in a PoE system has two input channels, each being coupled to a separate Power Sourcing Equipment (PSE) for increased reliability. A first PD controller is coupled to the first channel to perform hand-shaking and closes a first Power Good (PWRGD) switch when the PoE voltage is detected on the first channel. A second PD controller is coupled to the second channel to perform hand-shaking and closes a second PWRGD switch when the PoE voltage is detected on the second channel. A diode bridge couples both channels to a single regulating power supply that supplies power to a load. Auxiliary switches are controlled by the PWRGD signals so that only the first channel or the second channel is coupled to the diode bridge in the event that both channels receive the respective PoE voltages. Therefore, hot standby is provided using only one power supply.
    Type: Application
    Filed: May 27, 2014
    Publication date: January 15, 2015
    Applicant: Linear Technology Corporation
    Inventors: Ryan Charles Huff, Jeffrey Lynn Heath, Kaung Zin Htoo, Kirk Tzukai Su