MULTI-PARALLEL CHOPPER DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a multi-parallel chopper device wherein the output currents of individual unit choppers are balanced. SOLUTION: The multi-parallel chopper device includes: N unit choppers each constructed of a switching element 3 that is connected to the positive side of a direct-current power source 1 and supplies a direct current to a load 6 and a diode 4 connected between the negative side of the direct-current power source 1 and the output of the switching element 3; and reactors 5 provided in series with the respective outputs of the N unit choppers. The sections from the direct-current power source to positive and negative input branch points at which wiring is branched to the individual unit choppers are wired with a first common conductor. The sections from the input branch point to the individual unit choppers are wired with a first independent conductor with which the individual wiring impedances are equal. The sections from the load to positive and negative output branch points at which wiring is branched to the output of each reactor are wired with a second common conductor. The sections from the positive output branch point to the output of each reactor is wired with a second independent conductor. The negative output branch point is directly connected to the first common conductor on the negative side. COPYRIGHT: (C)2007,JPO&INPIT