| 摘要 |
<P>PROBLEM TO BE SOLVED: To simplify a serial/parallel switching circuit of two inverter power supplies. <P>SOLUTION: One output terminal tb of an inverter IN is directly connected to one output terminal ta' of an inverter IN', while the other output terminal ta of the inverter IN and the other output terminal tb' of the inverter IN' are directly connected to high voltage load connection terminals t11 and t12, respectively. Low voltage load connection terminals t21 and t22 are connected to the output terminal of a second inverter, and a single switch S connected between the high voltage load connection terminals constitutes the serial/parallel switching circuit. The outputs of the same phase are generated from both inverters at outputting of 240V, while the outputs of opposite phases are generated from both inverter generators at outputting of 120V. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
