| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure that enables turn-on with zero voltage to be performed even with an auxiliary inductor. SOLUTION: This inverter device is provided with a rectified power supply 2 which rectifies the voltage of an AC power source 1, a smoothing capacitor 4 charged by the rectified power supply 2, an oscillating inductor 6, a switching element 7 which impresses the voltage of the smoothing capacitor 4 intermittently to the oscillating inductor 6, an auxiliary inductor 20 connected to a position for forming a series connection each with the smoothing capacitor 4 and switching element 7, an oscillating capacitor 5 which forms an oscillation circuit with the oscillating inductor 6, and a flywheel diode 8 connected anti-parallel to the switching element 7 via the auxiliary inductor 20. This auxiliary inductor 20 does not affect a feedback current, because the auxiliary inductor 20 is positioned inside the flywheel diode 8 (at the side of the switching element 7) when viewed from the flywheel diode 8. |
