Also the energy should course three grades transform named high frequency inversion, high frequency rectification and low frequency inversion. Because of above, this converter has disadvantages of more conduction loss, complex system structure and low efficiency.
这类变换器只适用于从电源向负载单向传输功率的系统,而且能量需要经过三级功率变换(即高频逆变、高频整流和低频逆变),因而通态损耗较大,系统结构复杂,效率低。
参考来源 - 电压型高频链逆变电源的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Maintenance-free brushless drive motor with frequency inversion, has high start torque and short acceleration time.
免维护高力矩无刷变频电机直接驱动，启动力矩大、加速时间短。
The digital circuits are introduced in the SPWM inversion, which have brought the elimination of harmonics, high switching frequency, simplified circuits and high reliability.
而对于SPWM逆变，采用数字电路实现SPWM触发脉冲的生成，在消除谐波、提高开关频率、简化电路结构，提高集成度和可靠性等方面，取得了很好的效果。
But whether it can reach the prospecting aim by study for inversion of attenuation by earth absorption and by decreasing high frequency noise?
但是否可以通过研究反演大地吸收衰减和减少采集的高频噪声达到勘探的目的呢？
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