| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve a reduction in cost and the simplification of a drive circuit and also to get an output voltage higher than that of a half bridge circuit by generating two-phase AC, using a three-phase inverter. <P>SOLUTION: This two-phase AC system is equipped with a three-phase inverter 100 which is connected to a DC power source and besides has three AC output terminals, and two-phase load 60 which has one terminal A or B each of each phase load 60A and 60B and a common connector Z, and the three AC output terminals of the three-phase inverter 100 are connected to the three terminals A, B, and Z, respectively, of the two-phase load 60, and two-phase AC power is supplied from the three-phase inverter 100 to the two-phase load 60. Here, the three-phase inverter 100 is constituted of a voltage type inverter which is equipped with a DC voltage part and inverter arms 17-19 or a current type inverter which is equipped with a DC current part and inverter arms 27-29. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
