Patents by Inventor Ming Tai Ho

Ming Tai Ho 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).

  • Passive anti-arcing protection device for fluorescent lamp ballast
    Patent number: 8760065
    Abstract: A passive anti-arcing protection components for electronic ballasts of fluorescent lamps. This protection component is a bridge-rectifier-resistor-capacitor network, containing at least a diode, a resistor, and a capacitor. The component's circuitry is electrically connected to the ballast at the lamp side, acting as a low-resistance redirection path for any sudden change in energy. When an arcing condition is about to occur, this protection circuitry absorbs the spark energy, ceasing the arcing condition.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: June 24, 2014
    Assignee: Century Concept Limited
    Inventors: Cho Sing Chan, Ming Tai Ho
  • Current leakage protection device for LED applications
    Patent number: 8400076
    Abstract: An electronic circuit for driving an LED device, including an LED, a driver for supply current to the LED array, and one or two current detection modules connected to one or both ends of the LED array for detecting current level and sending signals about the current level detected to the driver, which will break the circuit immediately upon detecting a fault condition on either side of the LED array based on the feedback from one or both current detection modules.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: March 19, 2013
    Assignee: Century Concept Ltd.
    Inventors: Cho Sing Chan, Ming Tai Ho
  • Passive Anti-Arcing Protection Device for Fluorescent Lamp Ballast
    Publication number: 20120161657
    Abstract: A passive anti-arcing protection components for electronic ballasts of fluorescent lamps. This protection component is a bridge-rectifier-resistor-capacitor network, containing at least a diode, a resistor, and a capacitor. The component's circuitry is electrically connected to the ballast at the lamp side, acting as a low-resistance redirection path for any sudden change in energy. When an arcing condition is about to occur, this protection circuitry absorbs the spark energy, ceasing the arcing condition.
    Type: Application
    Filed: July 18, 2011
    Publication date: June 28, 2012
    Inventors: Cho Sing CHAN, Ming Tai HO
  • Current Leakage Protection Device for LED Applications
    Publication number: 20120086356
    Abstract: An electronic circuit for driving an LED device, including an LED, a driver for supply current to the LED array, and one or two current detection modules connected to one or both ends of the LED array for detecting current level and sending signals about the current level detected to the driver, which will break the circuit immediately upon detecting a fault condition on either side of the LED array based on the feedback from one or both current detection modules.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 12, 2012
    Inventors: Cho Sing Chan, Ming Tai Ho