Students voice – Electronics and Informatics, Mathematics and Physics –
My current research is about electro-magnetic interference (EMI) reduction techniques in switching power converters. EMI problem is a big issue for electronic appliances; if they do not meet EMI regulations, they cannot be in the commercial market. Then the EMI noise spectrum spread technique of suppressing the peak levels at the fundamental frequency is widely used. However, it spreads the EMI noise also in the radio receiver signal band, which disturbs the radio receiver erformance. Based on this background, my research target is set to reduce the EMI noise diffusion at the specific frequencies (radio receiver bands) when the EMI spectrum spread technique is employed. I have come up with new ideas to solve this problem, verified them with simulations and experiments, and presented their contents in international conferences.