Patents by Inventor TAM MAN FAI

TAM MAN FAI 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).

  • Apparatus for providing electricity with a plurality of AC-DC regulators
    Patent number: 10566789
    Abstract: The present invention discloses a DC current supply circuit, which comprises a plurality of power connectors; a first and second plurality of multiplexers; a plurality of AC-DC regulators; and an OR-ing circuit. Inputs and outputs of each of the first plurality of multiplexers are connected to live wires of at least two of the plurality of power connectors and to an input of a corresponding AC-DC regulator respectively. Inputs and outputs of each of the second plurality of multiplexers are connected to neutral wires of at least two of the plurality of power connectors and to input of a corresponding AC-DC regulator respectively. Each selector pin of the first plurality of multiplexers is connected to output of a corresponding AC current sensor. Each of selector pins of the second plurality of multiplexers is connected to output of a corresponding AC current sensor. Outputs of the corresponding AC-DC regulators are connected to the OR-ing.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: February 18, 2020
    Assignee: Pismo Labs Technology Limited
    Inventors: Chong Ming Pui, Tam Man Fai, Su Kang Yin, Zhang Jinbiao
  • APPARATUS FOR PROVIDING ELECTRICITY WITH A PLURALITY OF AC-DC REGULATORS
    Publication number: 20190123557
    Abstract: The present invention discloses a DC current supply circuit, which comprises a plurality of power connectors; a first and second plurality of multiplexers; a plurality of AC-DC regulators; and an OR-ing circuit. Inputs and outputs of each of the first plurality of multiplexers are connected to live wires of at least two of the plurality of power connectors and to an input of a corresponding AC-DC regulator respectively. Inputs and outputs of each of the second plurality of multiplexers are connected to neutral wires of at least two of the plurality of power connectors and to input of a corresponding AC-DC regulator respectively. Each selector pin of the first plurality of multiplexers is connected to output of a corresponding AC current sensor. Each of selector pins of the second plurality of multiplexers is connected to output of a corresponding AC current sensor. Outputs of the corresponding AC-DC regulators are connected to the OR-ing.
    Type: Application
    Filed: December 15, 2016
    Publication date: April 25, 2019
    Applicant: Pismo Labs Technology Limited
    Inventors: CHONG MING PUI, TAM MAN FAI, SU KANG YIN, ZHANG JINBIAO