查询词典 rectifier

The diesel engine is mechanically coupled with the generator, and the rectifier converts the three-phase alternative currents to the direct current shunt-wound with the battery package.

柴油发动机是机械加上发电机，整流器转换三相电流替代的直接电流分流伤的电池包。

Control unit circles line electric machinery through the change of a group of silicon controlled rectifier with shunt-wound back of photograph of every photograph dream spark the stator voltage that angle will come to to change electric machinery.

控制单元通过改变绕线电机每相梦相背并联的一组可控硅的触发角度来改变电机的定子电压。

Control unit circles line electric machinery through the change every photograph carries a group of shunt-wound to the back silicon controlled rectifier on the back spark the stator voltage that angle will come to change electric machinery.

控制单元通过改变绕线电机每相背对背并联的一组可控硅的触发角度来改变电机的定子电压。

The control signals of the PWM rectifier are obtained by comparing the current of AC side with triangular wave (or saw-tooth wave) directly, which can implement the steadiness of the voltage of DC side and unit capacity factor of the system. At the same time, harmonic component of the system is abstracted through Instant Reactive Power Method, which can be smoothed by Integrated Learning Boost Converter Control.

本文采用重复学习Boost变换技术，利用滑模变结构控制技术对单相PWM整流器恒频Boost变换进行了分析，提出将交流侧电流直接与三角波相比较得到开关控制信号的方法，实现直流电压恒定不变及系统单位功率因数；同时，利用瞬时无功功率法分析系统谐波，并在谐波域内使用重复学习的控制方法，结合Boost变换技术，有效滤除系统谐波有功电流。

Has designed one kind take the monolithic integrated circuit system as the core, the bidirectional silicon-controlled rectifier presses as the accent the asynchronous motor soft starter connection electric circuit and the software architecture and so on.

设计了一种以单片机系统为核心，双向可控硅作为调压元件的异步电动机软启动器接口电路及软件结构等。

Therefore, this paper presents a DSP based digital control design and implementation of an active- clamped forward converter with synchronous rectifier.

因此，本文将研制主动箝位顺向式转换器，并以DSP作为数位控制架构设计之研究。

A synchronous rectifier Buck converter using FC-IPEM is built to test the electrical performance.

采用半桥FC-IPEM构成同步整流Buck变换器，进行了电气性能测试。

This circuit can be widely used in other topology, such as flyback converter, half bridge converter, full bridge converter and push-pull converter with synchronous rectifier.

这个电路可以推广到其他隔离变换器的拓扑中，如反激变换器同步整流、半桥变换器同步整流、全桥变换器同步整流和推挽变换器同步整流。

This paper attempts to associate PFC technology with Quasi-Resonant DC/DC Converter and Synchronous Rectifier technology, to work out a novel switching power supply with higher efficiency and low contamination, which both achieved high power factor, improved effecting on electrical network and ensured high efficiency, furthermore, it is easy to be realized and controlled in circuit.

本文首先阐述了开关电源、功率因数校正技术和同步整流技术的发展及现状，对DC/DC变换的拓扑结构进行了选择，确定了带有隔离的准谐振(Quasi-Resonant)反激型电路，可以有效地降低损耗；接着本文对几种常见的PFC拓扑电路进行分析对比，从中选择了BOOST型电路，对工作在临界状况下的电路进行了分析，采用跟随输入电压的升压变换新技术，减小了电感体积，同时降低了开关管的电压应力，既简单又有效地实现了功率因数校正，并发现此技术值得推广；由于反激型变换器的效率一般都较低，所以本文在传统同步整流技术基础上对其加以改进，设计出一种新颖、高效的同步整流方案。

A new type high efficiency synchronous step-up DC/DC converter for hand-held device is designed in this thesis. It works in the PFM mode, and its switching frequency can up to 500 KHz. It offers a built-in synchronous rectifier that reduces size and cost by eliminating the need for an external Schottky diode and improves overall efficiency by minimizing losses.

本文设计了一种用于移动电子设备的高效同步整流的DC/DC升压芯片，该芯片采用PFM调制方式，工作频率最高可达500 KHz，内部集成功率管作为同步整流管，代替传统的肖特基二极管，导通电阻仅有0.4？

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。