| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform the high-speed control for power distribution while suppressing a short-circuit, when the drive voltage of a load is to be generated from a plurality of serially connected power sources. <P>SOLUTION: A switch (switch 4a), corresponding to a high-order power supply (a second power supply 21), is conducted for control with respect to each switch in a single period of a carrier from the lowest-order power supply (the first power supply 20) to the highest-order power supply (the second power supply 21), during a conduction period of a switch (switch 1a) corresponding to the lowest-order power supply (the first power supply 20). <P>COPYRIGHT: (C)2010,JPO&INPIT |
