变换器

According to the characteristic of matrix converters, strategies for reducing common-mode voltage in current-controlled MC are proposed based on the hysteresis current control and space vector modulation.

在滞环电流和空间矢量复合控制的基础上，针对电流控制型矩阵变换器自身的特点，提出了一种抑制共模电压控制策略。

In this paper, investigate basic half bridge Three-Level DC/DC converter, the operation and parameter design are disused ,second side commutate diode reverse furbish bring high pinnacle on the main switches.

本文首先给出了基本半桥式三电平DC/DC变换器，详细分析了其工作原理，讨论了主要参数的设计和由于次级整流二极管的反向恢复导致主开关管的电压尖峰。

Finally, the results of experiment demonstrate the availability and correctness of the advanced commutation strategy of matrix converter.

最后通过实验方法验证了改进后的矩阵变换器换流策略的可靠性与正确性。

In this papaer, principle of SVM control and four-stepped commutation is described.

文中介绍了矩阵变换器的控制和换流原理，详细介绍了系统各部分的实现。

May be further improved by changing the duty cycle of a down-converter in order to obtain commutation.

通过改变下变换器的占空比以获得换向可以得到进一步提高。

Connect down the folio pass the steady pressing the design proceeding of the unit electric circuit of the power supply to expatiate detailedly with explain, pass the large quantity electric circuit diagram to proceeded the elucidation with writing to the work principle of the unit electric circuit, combine to introduce the MC7107 A/ D transformation machine internal composing, lead the feet function and its the basic principle that proceeding convert.

接下来对开关稳压电源的单元电路的设计进行了详细的阐述和说明，通过大量电路图和文字对单元电路的工作原理进行了说明，并介绍了MC7107 A/D变换器的内部构成、引脚功能以及其进行转换的基本原理。

Chapter 3 extends multi-resonant technique and develops a general concept of Nth (N≥2) order quasi-resonant converters .

第二章对已有的准谐振型开关功率变换器电路拓扑，分析方法和一些特性进行了概括。

The experiment to demonstrate the bi-directional conductibility of power MOSFET is also presented in this paper. A power supply of TTCF with synchronous rectification is designed.The waveform,experiment data and analysis of it are presented in this paper,which shows that the design is avaible in practice.

作者设计了一个双管正激同步整流变换器，文章最后给出了相关实验波形及数据并进行了分析，证明了该设计方案的可行性。

The paper focuses on some key technologies of the contactless inductive power system.

本文对非接触感应电能传输系统中的功率变换器的一些关键技术进行了研究。

This design separately uses series linear constant voltage circuit, series regulate constant current circuit and the feedback type contravariant circuit to design direct current constant voltage power supply, direct current constant current power supply and DC-DC converter.

本设计分别用串联型线性稳压电路，串联调整式稳流电路和反馈式逆变电路设计直流稳压电源，直流稳流电源和DC-DC变换器。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐