| 摘要 |
<P>PROBLEM TO BE SOLVED: To eliminate the problems, wherein a first capacitive energy store is charged by a DC-voltage source and as a result, a higher loss is generated during a charging process, when a first switch is closed, and a second switch is opened. <P>SOLUTION: A converter circuit is specified in which, in order to avoid losses to the greatest possible extent, a first inductance L1 is connected in series into the connection of a DC voltage source 1 of the converter circuit to a first switch S0 of the converter circuit, and in which, moreover, a second inductance L2 is connected in series into the connection of a second switch S1 of a switching group 2 of the converter circuit to the junction point between a second capacitive energy store CA and a second unidirectional non-drivable power semiconductor switch D2 of the switching group 2. Two further alternative converter circuits and also a method for operating the converter circuits are furthermore specified. <P>COPYRIGHT: (C)2009,JPO&INPIT |
