Matlab Simulation of Very High Frequency Resonant Converters for LED Lighting
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 3, Issue 5
Abstract
This Paper presents a Very High Frequency DC–DC Converters for LED Lighting. As we know that DCDC Converters are used in converting the unregulated DC input into a controlled DC output at a desired voltage level. It is been observed that from last one decade the focus on green and environmental friendly energy usage has been increased. This has lead to a large increasing in the use of Light Emitting Diodes (LED’s) for lighting purpose. The bulbs are quite expensive due to both expensive LEDs and the power converter needed to supply these. Hence there is a strong demand for small, cheap and efficient power converters. In this Paper three different resonant topologies are compared and their usability is discussed. The proposed Converter for LED lighting is a resonant based high frequency Converter called as SEPIC (Single Ended Primary Inductor Converter) which is advantageous compared to other type of converter topologies which is compared in this paper. The proposed Converter design provides high efficiency over a wide input and output voltage range, up-and-down voltage conversion, small size and excellent transient performance. Simulation of a 51MHz Converter with 40V input and 15V output are made. The Simulation shows possibility of achieving higher efficiency with a Power MOSFET.
Authors and Affiliations
Avinash. C. M*1
Keywords
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