| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a simple power factor enhancing means in an inverter device. <P>SOLUTION: A rectifying power supply 10 is provided that rectifies the voltage of an AC power supply 11. A pair of a first switching element 21 and a second switching element 22 are provided in series connection in the forward direction. The rectifying power supply 10 is connected at a position astride the first switching element 21 and the second switching element 22 in such a way as to impress a voltage in the forward direction to each element. Also, a capacitor 40 is provided that connects an inverter load 90 in parallel with the first switching element 21. An inductance 30 is provided that includes a first winding 31 and a second winding 32. The first winding 31 is connected in series to the rectifying power supply 10, and the second winding 32 in series to the first switching element 21. When a voltage that counteracts the voltage of the rectifying power supply 10 is induced, each voltage polarity is determined so as to induce a reverse direction voltage to the first switching element 21 in the second winding 32. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
