- Patent Title: Ultra-high efficiency LED lamp driving device and driving method
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Application No.: US15566072Application Date: 2016-04-15
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Publication No.: US10178725B2Publication 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

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.
Public/Granted literature
- US20180139807A1 ULTRA-HIGH EFFICIENCY LED LAMP DRIVING DEVICE AND DRIVING METHOD Public/Granted day:2018-05-17
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