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

Ki, Wing-Hung

Mok, Philip Kwok Tai

Sin, Johnny Kin On

Yau, Elson K.F.

Hong Kong University of Science and Technology Institutional Repository

Phase-controlled dimmable CFL with PPFC and switching frequency modulation

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Phase-controlled dimmable CFL with PPFC and switching frequency modulation

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Hong Kong University of Science and Technology Institutional Repository