00338nam a2200133Ia 4500001000500000005001700005008004100022020001500063082001600078100002000094245002200114260001800136650005000154705820261006004006.0120911s9999    xx            000 0 und d  a0534923607  a621.317 FIS  aFisher,Marvin J  aPower electronics  aPws-Kent Pub.  aPower electronics   2. Semiconductor switches