| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a voltage conversion apparatus which is provided with a plurality of voltage conversion circuits and capable of preventing efficiency from decreasing even when an output current changes. <P>SOLUTION: There are provided a current detection part 42 which detects a total value of output currents of voltage conversion circuits 10, a changing part 31 which changes the number of voltage conversion circuits 10 which are made to operate among the voltage conversion circuits 10 in accordance with the detected total value, and a phase control part 35 which controls a phase of an output of the voltage conversion circuits 10 which are made to operate as a result of the change, and the like. The changing part 31 changes the number of the voltage conversion circuits 10 which are made to operate in accordance with the total value of the output currents when a load has become light and the total value (load current) of the output currents has decreased, for example. <P>COPYRIGHT: (C)2012,JPO&INPIT |
