TY - GEN
T1 - An Electrolytic Capacitor-less AC-DC LED Driver with a Low Power Processing Auxiliary Circuit and Ceramic Capacitors for Ripple Power Decoupling
AU - Shan, Zhenyu
AU - Chen, Xiaomei
AU - Fan, Shengwen
AU - Jatskevich, Juri
AU - Tse, Chi K.
PY - 2018/9
Y1 - 2018/9
N2 - Traditional ac-dc LED drivers include a large electrolytic capacitor to decouple the double-line frequency ripple power from the utility grid, which shortens the lifespan of LED lamps. This paper presents an electrolytic capacitor-less ac-dc LED driver with a low power processing auxiliary circuit and ceramic capacitors decoupling the ripple power. In this structure, the redundant power processed by the auxiliary circuit is lower and fewer components are used, comparing with existing similar designs. In addition, the ceramic capacitors that are used as the energy storage have higher energy density and lower cost. The capacitance drift of ceramic capacitors is modeled and analyzed, and the parameter design for the ceramic capacitor bank is given. Experiments on a prototype are carried out to verify the performance and design of the proposed LED driver.
AB - Traditional ac-dc LED drivers include a large electrolytic capacitor to decouple the double-line frequency ripple power from the utility grid, which shortens the lifespan of LED lamps. This paper presents an electrolytic capacitor-less ac-dc LED driver with a low power processing auxiliary circuit and ceramic capacitors decoupling the ripple power. In this structure, the redundant power processed by the auxiliary circuit is lower and fewer components are used, comparing with existing similar designs. In addition, the ceramic capacitors that are used as the energy storage have higher energy density and lower cost. The capacitance drift of ceramic capacitors is modeled and analyzed, and the parameter design for the ceramic capacitor bank is given. Experiments on a prototype are carried out to verify the performance and design of the proposed LED driver.
KW - Ac-dc power conversion
KW - Electrolytic capacitor less
KW - LED driver
KW - Ripple power decoupiing
UR - https://www.scopus.com/pages/publications/85060290115
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85060290115&origin=recordpage
U2 - 10.1109/ECCE.2018.8557456
DO - 10.1109/ECCE.2018.8557456
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 978-1-4799-7312-5
T3 - 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
SP - 5101
EP - 5108
BT - Proceedings - 2018 IEEE Energy Conversion Congress and Exposition (ECCE)
PB - IEEE
T2 - 10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Y2 - 23 September 2018 through 27 September 2018
ER -