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@article{Chan:2005:10.1109/TPEL.2005.857561,
author = {Chan, SSM and Chung, HSH and Hui, SY},
doi = {10.1109/TPEL.2005.857561},
journal = {IEEE Transactions on Power Electronics},
pages = {1450--1458},
title = {Design and analysis of an IC-less self-oscillating series resonant inverter for dimmable electronic ballasts},
url = {http://dx.doi.org/10.1109/TPEL.2005.857561},
volume = {20},
year = {2005}
}
TY - JOUR
AB - This paper presents a low-cost solution of converting the popularly adopted nondimmable electronic ballast circuit for fluorescent lamps with self-oscillating series resonant inverter into a dimmable one. The dimming function is achieved by increasing the switching frequency of the inverter from the natural frequency of the resonant tank, so that less energy is coupled to the lamp. Control of the switching frequency is based on deriving an adjustable de current source from the resonant inductor in the resonant tank to control the operating point of the saturable transformers for driving the switches in the inverter. The overall implementation does not require any integrated circuit. A 17-W prototype has been built and studied. Theoretical predictions have been verified with experimental results. The lamp can be dimmed down to 10% of the full power. © 2005 IEEE.
AU - Chan,SSM
AU - Chung,HSH
AU - Hui,SY
DO - 10.1109/TPEL.2005.857561
EP - 1458
PY - 2005///
SN - 0885-8993
SP - 1450
TI - Design and analysis of an IC-less self-oscillating series resonant inverter for dimmable electronic ballasts
T2 - IEEE Transactions on Power Electronics
UR - http://dx.doi.org/10.1109/TPEL.2005.857561
VL - 20
ER -