Patents Assigned to GA CO., LTD.
  • Ultra-high efficiency LED lamp driving device and driving method
    Patent number: 10178725
    Abstract: Provided is an ultra-high efficiency LED lamp driving device comprising: a plurality of shift switches connected to tabs between LED lamps; and an LED shift control unit for driving the shift switches so that lighting of the LED lamps is shifted to an end terminal when a total operation threshold voltage value of the LED lamp is equal to or greater than a maximum value of an input voltage, and thus, an unlighted LED lamp exists. The present invention can make the power loss be zero to thereby increase the efficiency.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: January 8, 2019
    Assignee: GA CO., LTD.
    Inventor: Gowansoo Ko
  • ULTRA-HIGH EFFICIENCY LED LAMP DRIVING DEVICE AND DRIVING METHOD
    Publication number: 20180139807
    Abstract: Provided is an ultra-high efficiency LED lamp driving device comprising: a plurality of shift switches connected to tabs between LED lamps; and an LED shift control unit for driving the shift switches so that lighting of the LED lamps is shifted to an end terminal when a total operation threshold voltage value of the LED lamp is equal to or greater than a maximum value of an input voltage, and thus, an unlighted LED lamp exists. The present invention can make the power loss be zero to thereby increase the efficiency.
    Type: Application
    Filed: April 15, 2016
    Publication date: May 17, 2018
    Applicant: GA CO., LTD.
    Inventor: Gowansoo KO