| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an induction heating device for preventing the occurrence of interference noises when using a plurality of heating coils at the same time, while reducing circuit loss during high heating power. <P>SOLUTION: The induction heating device includes a series assembly of first and second semiconductor switches 5, 6 connected in parallel to a DC power supply 1, a series assembly of third and fourth semiconductor switches 15, 16 to be connected in parallel to the DC power supply, a first resonance circuit 9 connected at one end to the middle point of the series assembly of the first and second semiconductor switches, a second resonance circuit 19 connected at one end to the middle point of the series assembly of the third and fourth semiconductor switches, and a switching means 4 connected at one end to a connection point between the first and second resonance circuits and connected at the other end to one end of the DC power supply. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
