Fully digital controlled electronic ballast for electrode-less lamps

This Paper presents digital control based and remote controlled electronic ballast for electrode-less lamps. In order to control the power of lamp driven by high-frequency electronic ballast, remote control is necessary. For the group lighting system, especially, wireless remote control using RF modem is proper. In this paper, 2.4-GHz ISM band RF modem based remote controlled electronic ballast is proposed. However, the cost of RF modem is relatively expensive as compare with the cost of electronic ballast. For the economic realization, one-controller two-lamps system is proposed. And the proposed control circuit of the ballast is implemented with fully digital circuit using low cost 16-bit DSP and small size EPLD. Detailed algorithms for the power control and protections for the commercial electronic ballast are described. Finally, the wire and wireless linked group lighting system using the proposed ballast is introduced.