查询词典 converters

This paper studies the phenomena of intermittent subharmonics and chaos in DC DC converters according to the consideration of coupling filter,consequently concludes that the origin of intermittency comes from conducted or radiated EMI.

文章从电路耦合滤波的角度考虑，分析了一类间歇分谐波与间歇混沌现象产生的原理，确定耦合电路传导和辐射干扰是产生该现象的根源，并构造了一个开关变换器模型作为研究对象，仿真与实验均得到了相似的非线性现象，同时对不同的电路参数集，讨论并分析了其对间歇现象产生所起的不同影响，为变换器的稳定设计提供信息。

The intermittent chaos and subharmonics in high-order switching power converters are studied with a current-mode controlled SEPIC (single ended primary inductor converter) converter serving as an example.

以四阶电流模式控制单端初级电感变换器(single ended primary inductor converter，SEPIC)为例，研究高阶开关功率变换器中的间歇混沌和间歇分谐波现象。

This paper analyzes and synthesizes the current topologies of single-stage PFC DC/DC converters with the direct power transfer technology,and describes mechanism and implementation of the DPT technology.

本文对现有的应用直接功率转换技术的单级 PFC AC/DC变换器进行了深入的分析和综合，阐明了它们的直接功率转换的机理和实现方法。

Nowadays PFC AC/DC converters which are being used in many fields play an important role in the life.

PFC技术是电力电子技术的重要组成部分，已经在越来越多的领域得到应用。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48