| 摘要 |
<p>A three-phase flat-top waveform generator (10) which may be utilized in a pulse-width modulator. Transfer function means receive a three-phase input signal (ea, eb, ec) and produce therefrom a zero sequence signal (ez) . Under steady-state and balanced conditions, the zero sequence signal will generally have a fundamental frequency three times the frequency of the input signal. Summing means (33, 34, 35) add the zero sequence signal to each phase of the input signal to produce the desired flat-top signal. <IMAGE></p> |
