• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.18 no.5
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• pp.27-34
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• 2004

In this paper, we designed the electronic ballast for the 400[W] hight pressure sodium lamp using the half-bridge inverter Inductance and capacitance in the proposed equivalent LC series resonant circuit are calculated theoretically. We performed the simulation of the LC series half-bridge inverter circuit using the IsSPICE and the electronic ballast for the high pressure sodium lamp were implemented for verifing the simulation results. In the experimental results, the specification of the implemented electronic ballast are almost same with the simulated one. The experimental results show the good performance as PF 99.3[%], $A_{THD}$ 10.01[%], lamp efficiency 119[lm/W] at the output 400[W].].