| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter system with a high power factor, by enlarging the opportunity of power feeding of a rectification power supply. <P>SOLUTION: The inverter system includes: a pair of first and second switching elements 11, 12 turned on and off alternately; first and second flywheel diodes 21, 22 connected antiparallelly with the switching elements 11, 12; an inductive load circuit 30 with one end connected to a cross point of the switching elements 11, 12; a first capacitor 41 for forming a forward directional current to the inductive load circuit 30 through the switching element 11; a second capacitor 42 for forming a reverse directional current to the inductive load circuit 30 through the switching element 12; a first auxiliary diode 51 connected in parallel with the capacitor 42 for preventing reverse charge of the capacitor 42; a second auxiliary diode 52; a capacitor 60 with large capacity for applying a voltage of the capacitor 42 through the diode 52; and a rectifying power supply 70 for rectifying the voltage of an AC power supply 71. The rectifying power supply 70 is arranged in a position for charging the capacitor 41 through the diode 52. <P>COPYRIGHT: (C)2004,JPO |
