| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compact inverter power supply device for generating AC voltage from a DC power supply by converting power by switching operations, and improving power conversion efficiency in a wide output range compared with before. <P>SOLUTION: This inverter power supply device is equipped with: a plurality of power inverter circuits for performing flyback power converting operations by inputting common DC power supply voltage; an output synthesizing circuit for generating pulsating voltage by synthesizing the outputs of the plurality of power inverter circuits; an inverting circuit for converting the pulsating voltage generated by the output synthesizing circuit to AC voltage through periodical polarity inversion; and a controller for controlling generation of driving signals in drive circuits included in the plurality of power inverter circuits and for controlling the timing of the inverting operations in the inverting circuit. <P>COPYRIGHT: (C)2009,JPO&INPIT |
