| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power supply unit for renewable energy, lighting apparatus therewith, display unit therewith, and lighting control system with lighting apparatus, capable of attaining high power conversion efficiency and high convenience and solving a safety problem. <P>SOLUTION: The power supply unit CG1 includes: a first power supply circuit that supplies electric power to a load by inputting an AC power supply; a second power supply circuit that supplies electric power to a load by inputting at least one of an AC power supply and a DC power supply with a different frequency from that of the AC power supply; a power conversion circuit that outputs to the load by inputting an output of the first power supply circuit and an output of the second power supply circuit; and an output sharing setting circuit that outputs an output sharing setting signal for setting a ratio of an output of the second power supply circuit to an output of the first power supply circuit. Electric power of at least one of an output of the first power supply circuit and an output of the second power supply circuit is adjusted according to an output signal of the output sharing setting circuit. <P>COPYRIGHT: (C)2012,JPO&INPIT |
