A technique, which substantially reduces the number of power-stage and control circuit components in an isolated DC/DC converter with parallel current-doubler rectifier stages, includes on the primary side transformers with serially connected primary windings each having a corresponding secondary winding...http://www.google.com.tw/patents/US6388898?utm_source=gb-gplus-share專利 US6388898 - Dc/dc power processor with distributed rectifier stage
