Title :
Phase-controlled dimmable CFL with PPFC and switching frequency modulation
Author :
Yau, Elson K F ; Ki, Wing-Hung ; Mok, Philip K T ; Sin, Johnny K O
Author_Institution :
Integrated Power Electron. Lab., Hong Kong Univ. of Sci. & Technol., China
fDate :
6/23/1905 12:00:00 AM
Abstract :
A dimmable compact fluorescent lamp using a commercial triac dimmer is presented. To achieve a power factor of 0.93 at full intensity, a valley-filled charge pump passive power factor corrector is used. To achieve stable control at low intensity, a novel application of switching frequency modulation is introduced
Keywords :
fluorescent lamps; lighting control; phase control; power factor correction; power semiconductor switches; stability; thyristor applications; dimmable compact fluorescent lamp; phase-controlled dimmable CFL; stable control; switching frequency modulation; triac dimmer; valley-filled charge pump passive power factor corrector; Bridge circuits; Capacitors; Electronic ballasts; Fluorescent lamps; Frequency modulation; Phase modulation; Reactive power; Switching frequency; Thyristors; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-7067-8
DOI :
10.1109/PESC.2001.954241
