| 摘要 |
<p>Induction heating device which uses a bridge inverter and which comprises a DC power supply, a plurality of switching elements (6), (7) forming the bridge inverter and a circuit for detecting the turn-off of the switching elements (6), (7). Generally, a bridged inverter always has the danger that the series-connected switching elements (6), (7) are simultaneously made conductive when they are turned off, and thus break down. This device eliminates this danger, thereby improving the reliability of the device. More concretely, in order to completely detect the turn-off of the switching elements (6), (7), and improved turn-off detecting circuit is employed, and an improved control circuit eliminating the erroneous operation of the circuit due to external noise is provided.</p> |
