| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a DC-DC converter that can be used in a situation that an input-side power supply voltage and an output-side voltage are drastically changed by a load, and that can output an electric power exceeding an electric power supplied from a power supply without using a high-capacity power supply or a high-capacity secondary battery when the load is large. <P>SOLUTION: A DC-DC converter includes: a capacitor that charges an output from a rectification circuit for rectifying an output of an AC power supply; a secondary battery connected in parallel to the capacitor; and a main choke coil and a main switch connected in series between the capacitor and the secondary battery. <P>COPYRIGHT: (C)2012,JPO&INPIT |
