抄録
A switched-mode power converter has prominent features of small size, and high efficiency. On the other hand, it has inherently a defect of surge and noise generation due to switching process. Furthermore improvement for the good features has been required, and a good solution for the suppression of EMI problems has been also required. Concerning these topics, a lot of discussions have been recently reported. This paper summarizes some advanced technologies for solving the above-mentioned demands.