HYBRID MULTILEVEL INVERTER APPARATUS AND AN INVERTING METHOD USING THE SAME CAPABLE OF OBTAINING A LINEAR OUTPUT VALUE

摘要

PURPOSE: A hybrid multilevel inverter apparatus and an inverting method using the same are provided to obtain an output voltage level value to the maximum 15 level by mixing a 3 level inverter and a 5 level inverter.;CONSTITUTION: A first power source(n1Vdc) supplies power to a full bridge part. A second power source(n2Vdc) is connected to a hybrid bridge part to supply power to a rear end. A third power source(n3Vdc) is connected to the hybrid bridge part to supply power the rear end through a bridge circuit. The full bridge part outputs a 3 level output value in the shape of a sine wave. The full bridge part includes a first switch(Q11), a second switch(Q12), a third switch(Q13) and a fourth switch(Q14). The third switch and the fourth switch are connected to the first switch and the second switch in parallel.;COPYRIGHT KIPO 2012