Title :
An Analysis and Practical Implementation of a Dimmable Compact Fluorescent Lamp Ballast Circuit Without Integrated Circuit Control
Author :
Tam, P.W. ; Hui, Shu Yuen Ron ; Chung, Samuel H.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong
Abstract :
Traditional compact fluorescent lamps (CFL) cannot be dimmed by triac dimmer. In this paper, the technical issues behind the incompatibility between the triac dimmer and the internal ballast of the compact fluorescent lamp are addressed. Based on the charge-pump concept and voltage dimming control, a dimmable CFL design that is compatible with triac dimmers is analyzed and developed. A 16 W CFL prototype has been built and tested. Experiments have confirmed that a wide and stable dimming range from 2.2 W to 16 W can be achieved
Keywords :
fluorescent lamps; lamp accessories; semiconductor switches; thyristors; 2.2 to 16 W; charge-pump concept; dimmable compact fluorescent lamp ballast circuit; integrated circuit control; triac dimmer; voltage dimming control; Capacitors; Charge pumps; Circuits; Electronic ballasts; Fluorescent lamps; Prototypes; Switches; Switching frequency; Thyristors; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE
Conference_Location :
Jeju
Print_ISBN :
0-7803-9716-9
DOI :
10.1109/PESC.2006.1712149
