| 摘要 |
<P>PROBLEM TO BE SOLVED: To realize a small size, a light weight and a cost reduction of a device by reducing the number of parts of a circuit and making the constants of a reactor constituting a filter and a capacitor small. <P>SOLUTION: A diode series circuit; a capacitor series circuit; and a switching arm series circuit are connected in parallel and a capacitor is connected to the switching arm in parallel. One end of a heating coil is connected to an internal connection point of the switching arm series circuit and the other end of the heating coil is connected to an internal connection point of the capacitor series circuit to constitute an induction heater. The single reactor and a single phase alternating power source are connected in series between the first connection point at which the internal connection points of the diode series circuits of N (N is a natural number of 2 or more) of the induction heaters are connected to each other and the second connection point at which the internal connection points of the capacitor series circuits are connected to each other. <P>COPYRIGHT: (C)2004,JPO |
