Abstract
As LEDs have an increasingly higher luminous efficiency LED lamps are expected to become more popular. Therefore, not only luminous efficiency, but also the efficiency of lighting circuits is an important way to improve the efficiency of an entire lighting system. We have therefore invented a new inrush current suppressor which uses a solid state relay (a Photo MOS one), and developed a high-efficient lighting circuit for LED lamps. It has an efficiency that is 80.7∼91.8% higher than conventional lighting circuits and suppresses the inrush current.
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