| 摘要 |
<P>PROBLEM TO BE SOLVED: To realize an apparatus configuration, having high transforming efficiency with reduced loss in a power transforming apparatus for boosting solar-light voltage, transforming it into AC power and supplying the AC power to a load or a system. <P>SOLUTION: AC sides of single-phase inverters 6-8 receiving input DC power of first-third capacitors 3-5 are connected in series, and an output voltage is controlled by the sum of the generated voltage from each of the inverters. The voltage of the first capacitor 3 having the maximum voltage is generated into a desired voltage from the solar voltage via a step-down converter 17 and a booting chopper 11. Bypass circuits 12, 18 and 28 are provided to bypass both or either of the step-down converter 17 and the boosting chopper 11, as necessary. <P>COPYRIGHT: (C)2007,JPO&INPIT |
