也许是受欢迎的转矩脉动进一步减少，但是大量的电力设备和连接可能会限制四阶段有限的应用领域。
Maybe popular for reducing torque ripple further, but the large number of power devices and connections will probably limit four phase to a limited application field.
在分析一种低脉动输出电压的谐振d C环逆变器原理的基础上，对谐振环的谐振阶段的损耗进行了分析与近似计算。
On the base of the theory of lowly pulsant output resonant DC-link inverter, the loss in the resonant phase of the resonant DC-link is analyzed and almost calculated.
在单片机控制下，脉动送丝波形与外特性同步调控。在停止送丝阶段，单片机令电源输出电压为峰值，焊丝在此电压下返烧并形成熔滴。
The output waveform of the oscillating wire feed system and the external characteristic are controlled and adjusted by a single-chip microcomputer (SCM) synchronously.
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