2.65-MHz Self-Oscillating Complementary Electronic Ballast With Constant-Lamp-Current Control for a Metal Halide Lamp

Autor:	Feng-Yin Chen, Ray-Lee Lin, Zhi-Qiang Wang, Yan-Der Lee
Rok vydání:	2007
Předmět:	Ballast Engineering business.industry Electromagnetic compatibility Electrical engineering Halide Electromagnetic interference law.invention law EMI Radio frequency Electrical and Electronic Engineering business Metal-halide lamp Voltage
Zdroj:	IEEE Transactions on Power Electronics. 22:2097-2105
ISSN:	1941-0107 0885-8993
DOI:	10.1109/tpel.2007.909287
Popis:	This paper presents the design and implementation of the 2.65-MHz self-oscillating complementary electronic ballast with a constant-lamp-current control for a metal halide lamp. In order to avoid the inherent acoustic-resonance problem of metal halide lamps, the ballast's switching-frequency level was selected to be 2.65 MHz, which satisfies higher magnitudes of maximum electromagnetic interference (EMI) limitation at frequencies of between 2.5 to 3.0 MHz, within the EMI/electromagnetic compatibility frequency range ldquochimney,rdquo for RF lighting systems. With the constant-lamp-current control scheme, the lamp current can be regulated to be less dependent on the input ac voltage. Finally, a 20-W prototype ballast is implemented to demonstrate the ability to avoid the acoustic-resonance and to provide constant levels of lamp current.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::756d1eca732d07cf181c73795eae90c6 https://doi.org/10.1109/tpel.2007.909287 Zobrazit plný text záznamu