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- The resonance current,caused by the LC low pass filter at the step change of PWM switching pattern,can be effectively suppressed by one pulse control of the pattern. 在变频器PWM开关切换的阶跃变化时,低通滤波器产生的谐波电流能够被开关信号的一个脉冲控制有效抑制。
- The half-bridge series resonant current source realizable circuit is presented and its operation principle and timing logic and the design of the key parameters are introduced. 给出了实现这种拓扑结构的半桥串联谐振电流源电路,详细介绍了该电路的工作原理及时序,并对其关键参数进行了设计。
- Demand is outstripping current production. 现在需求逐渐超过了生产能力。
- She broadcasts on current affairs. 她发表时事广播演说。
- Our language goes current along the seacoast. 我们的语言通用于沿海一带。
- You may open a current account at a bank. 你可以在银行开立一个活期帐户。
- I'd like to open a current account with you. 我想在你们这儿开一个活期存款帐户。
- He made some comments on current topics. 他对时事问题做了若干的评论。
- Resonance would occur again, but not so strong as before. 共振会再次发生,但不如先前那么强。
- The swimmer was swept away by the current. 那个游泳的人被激流卷走了。
- He is interested in current affairs. 他对时事感兴趣。
- She had to swim against the current. 她必须逆著水流往上游。
- This button switches the current on. 这个电钮接通电流。
- I should like to open a current account. 我想开一个活期存款帐户。
- The junk laid by, drifting gently with the current. 帆船顶风停驶,顺水缓慢地漂流着。
- We were rowing against the current. 我们逆水划船。
- A channel in which a tidal current runs. 潮汐水道潮汐流在其中流动的水道
- Our talks ran on current political news. 我们的谈话涉及当前的政治新闻。
- I'm increasingly disenchanted with my current job. 我对目前的工作越来越不满意了。
- The current in this place is very rapid. 这儿的水流很急。