Because conventional switching converters are usually using unbalanced circuit topologies, parasitic capacitance between the drain of an MOS-FET and the frame ground through its heat sink may generate the common-mode conducted noise. We proposed a concept of balanced switching converter circuit, which is an effective way to reduce the common-mode conducted noise of a switching converter by current cancellation. In this paper, the path of the noise current in a balanced boost converter circuit is investigated using a current probe. By measuring current waveforms and frequency spectra of the parasitic capacitances and the frame ground line, the mechanism of the common-mode noise reduction by current cancellation is clarified.
|ジャーナル||PESC Record - IEEE Annual Power Electronics Specialists Conference|
|出版ステータス||出版済み - 11 29 2004|
|イベント||2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04 - Aachen, ドイツ|
継続期間: 6 20 2004 → 6 25 2004
All Science Journal Classification (ASJC) codes