Therefore , if mf is taken , even the AC output voltage harmonics will appear at normalized odd frequencies , fh .
The output voltage is equal to the difference of the two phase voltages , and do not contain any even harmonics .
If mf is taken , even the AC output voltage harmonics will appear at normalized odd frequencies , fh .
The output voltage is equal to the difference of the two phase voltages , and do not contain any even harmonics .