查询词典 ignition rectifier

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？

The director's indirect direction led to the incor rect erection of the rectifier.

指导者间接的指导导致整流器的错误安装。

If so, the following three conditions are not caused by outside: Enter the loop by a diode bridge rectifier breakdown; high-voltage electrolytic filter capacitor C5, C6 was the breakdown; inverter power switch Ql, Q2 damage.

若是，则不外如下三种情况造成：输入回路中某个桥式整流二极管被击穿；高压滤波电解电容C5、C6被击穿。；逆变功率开关管Ql、Q2损坏。

This paper addresses the control problem of a variable speed wind turbine system in above rated wind speed which uses pitch angle control of the blades and delay angle control of the rectifier,with special emphasis on the differential geometric theory.

讨论了在额定风速以上时变转速风力机的控制问题，系统采用基于微分几何理论下的桨距角和触发角双输入控制。

The result is that the ignition process is faster, more homogeneous and more acoustically refined.

其结果是，点火过程更快，更均匀，更听觉完善。

The waist side air has some effects on controlling size of the recirculation zone and the sectional recirculation ratio, and it can decrease temperature of the recirculation zone, the ignition point is adjustable by means of changing the ratio of the waist air.

双通道燃烧器的腰部风射流、中二次风射流和下二次风射流在控制回流区强度和温度、加强风粉气流混合和增强下一次风射流刚性方面有不同的作用，实际应用中应根据燃料的着火性能、燃尽性能和结渣性能等特性合理选择使用上述措施。

The French are not suggesting a new EU treaty, but they have plenty of other wheezes.

法国人并不是在建议签署一个新的欧盟条约，但他们有许多其他的阴谋。

This letter was written by my brother.

这封信是我弟弟写的。