• Patent Title: Ultra-high efficiency LED lamp driving device and driving method
  • Application No.: US15566072
    Application Date: 2016-04-15
  • Publication No.: US10178725B2
    Publication Date: 2019-01-08
  • Inventor: Gowansoo Ko
  • Applicant: Gowansoo Ko
  • Applicant Address: KR Wonju-Si
  • Assignee: GA CO., LTD.
  • Current Assignee: GA CO., LTD.
  • Current Assignee Address: KR Wonju-Si
  • Agency: Cantor Colburn LLP
  • Priority: KR10-2015-0054763 20150417
  • International Application: PCT/KR2016/003911 WO 20160415
  • International Announcement: WO2016/167584 WO 20161020
  • Main IPC: H05B33/08
  • IPC: H05B33/08
Ultra-high efficiency LED lamp driving device and driving method
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.
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