並列化DC/DCコンバータ Converter . . . Converter i1 Io Load iN • Current Sharing: 低電圧-高電流(3V-50A) [z] • 並列化: 信頼性、耐久性の向上？ [g] • 基礎: 様々な同期現象、分岐現象 [i] Keys: 簡素な並列化SW法、簡素な解析法 [z] X. Zhou, P. Xu & F. C. Lee, IEEE Trans. PE, 15 (2000) 1153 [g] R. Giral, L. Martinez-Salamero & S. Singer, IEEE Trans. PE, 14 (1999) 643 [i] H. H. C. Iu & C. K. Tse, IEEE Trans. CAS-I, 48 (2001) 233 WTAスイッチングによる Interleaved Converters L1 S1 . . . V1 Io i1 D1 1 C S i  ON Di  OFF R LN SN ii  Thi 2 Si  OFF Di  ON ii  0 3 Si & Di  OFF t  nT iN ii  MIN at t  nT DN ii i1 Thi 2 i2 i3 Io 1 MIN (winner) 0 T 2T 3 3T t パラメータ条件 3 b 1 ( N  3, ai  a, bi  b ) 3 - SYN (CCM) 3 - SYN (CCM) i1 2 1 3 - SYN (DCM) 3 - SYN は Unst able 2 - OSYN 1 - OSYN 0 a 1 2 1 i2 i3 0.4 mA Io 0.1 ms 3 3 - SYN (DCM) 2 - OSYN i1 i2 i3 Io (a 1 , b1 )  (5.2, 4.5) PWCの実装回路 L1 S1 V1 SN . . . Io T LN Th C ‐ IVC . . . i1 iN DN iN V2 D1 iN i1 v i1 to S1 ・・ to SN WTA-based switching . . .  Q to S1  . . . C ‐ ‐  R t  C ‐ ‐ S WTA ‐ IVC Th  S C R Q to S N  VSS WTA ・Multiple-input Paralleled DC-DC Converters Solar Array Clean energy power converter [6] [6] H. Matsuo, W. Lin, F. Krokawa, T. Shigemizu & N. Watanabe, IEEE Trans., Ind. Electron., 2004. Hybrid vehicles [7] [7] L. Solero, A. Lidozzi & J. A. Pomilio, IEEE Trans., Power Electron., 2005. etc… ・Nonlinear dynamical system Wind Generator Fuel Cell  多入力 DC/DC Converter Load Commercial AC Line Converter 負荷 Converter