| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter device capable of generating higher-frequency power by reducing operation patterns in one cycle of switching operation while suppressing the occurrence of a surge. <P>SOLUTION: An induction-heating device 10 includes: an inverter circuit 20; a DC power-supply 11; an induction-heating circuit 30 including a coil L and a capacitor C; and a control unit 40 that controls a phase difference between an inverter output current I and an inverter output voltage V and performs on/off controls of first to fourth switching elements tr1 to tr4 in the inverter circuit 20. The control unit 40 simultaneously turns on the second switching element tr2 and turns off the fourth switching element tr4 or simultaneously turns off the second switching element tr2 and turns on the fourth switching element tr4 while turning off the first switching element tr1 or the third switching element tr3 and then turning on the third switching element tr3 or the first switching element tr1. <P>COPYRIGHT: (C)2013,JPO&INPIT |
