Inventor
LU YUNG-CHUAN
TW14 patents
⚠️ This page may combine multiple inventors who share the name “LU YUNG-CHUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DELTA ELECTRONICS INC
12 patentsUS9648690B1May 9, 2017
Dimmable instant-start ballast
DELTA ELECTRONICS INC4 citations71
US11388800B2Jul 12, 2022
Power supply for light-emitting diode and operating method thereof
DELTA ELECTRONICS INC0 citations61
US12543250B2Feb 3, 2026
LED driver, LED lighting system and operating method thereof
DELTA ELECTRONICS INC0 citations59
US10152068B1Dec 11, 2018
Electrical ballast and driving method thereof
DELTA ELECTRONICS INC1 citations51
US12408248B2Sep 2, 2025
LED power supply
DELTA ELECTRONICS INC0 citations50
US12349247B2Jul 1, 2025
LED power supply equipment with bi-level dimming
DELTA ELECTRONICS INC0 citations50
US11991797B2May 21, 2024
LED power supply with bi-level dimming and bi-level dimming method
DELTA ELECTRONICS INC0 citations50
US11646655B2May 9, 2023
LLC resonant converter and control method thereof
DELTA ELECTRONICS INC0 citations50
US8378592B2Feb 19, 2013
End of lamp life protection circuit with bi-level detections for the electronic ballast and method thereof
DELTA ELECTRONICS INC0 citations46
US12593384B2Mar 31, 2026
LED driver and operating method thereof
DELTA ELECTRONICS INC0 citations43
US9544980B2Jan 10, 2017
Driving device and illumination system
DELTA ELECTRONICS INC0 citations41
US9232619B2Jan 5, 2016
Fluorescent electronic ballast
DELTA ELECTRONICS INC0 citations41