| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new inverter device which can reduce an error at the correction of an output voltage. <P>SOLUTION: In the inverter device comprising a full-bridge inverter 2 which converts a DC voltage to an AC voltage, and a control part 20 which feeds AC output voltages back to switch elements 2a to 2d of the full-bridge inverter, a ground line of the control part is connected in common to a positive voltage line or a negative voltage line of the full-bridge inverter. The inverter device is also characterized by comprising: output voltage detection parts 10 which are connected between output both ends of the full-bridge inverter and the ground lines, respectively; an output voltage calculation part 22 which subtracts a positive output voltage detected by the output voltage detection part by using a reversed-phase output voltage, and outputs the result of the subtraction as an output voltage; and a correction part 23 which correctively multiplies the output voltage outputted from subtraction circuit by a correction coefficient, and controls the switch elements of the full-bridge inverter. <P>COPYRIGHT: (C)2008,JPO&INPIT |
