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Transformer less halogen lamp step-down converter

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4 Author(s)

The main aim of this paper is to presents the development of low cost design for 35 W transformer less halogen lamp step down converter from 240 VAC to 12 VAC in stable output. This paper presents the methodology of solving the critical problem and circuit design of a halogen dimmer without utilizing the isolation transformer. This approach increased the efficiency and minimizes the power losses through transformer. The design focused on low power losses, low cost design and stable output voltage included environment factor such as dirty AC lines, surge current and harmonics. It is found the power loss is 3 W through step down resistor for firing circuit and NTC.

Published in:

Power and Energy Conference, 2004. PECon 2004. Proceedings. National

Date of Conference:

29-30 Nov. 2004