The saw-tooth carrier waves with positive or negativeslope alternately are studied and applied into the three-phase PWM inverter soft-switching operation.
研究采用正负斜率交替的锯齿载波,成功地解决了主电路在任何电压矢量下都能实现零电压开关动作;
3
Which usually has a negativeslope, except for the two most important substances on Earth, which are water and silicon. So for water and silicon, we have positive slope.