查询词典 correction factor

Keywords power factor correction; reversible converter; variable structure control with sliding mode; space vector; digital signal processor

要害词 功率因数校正；可逆变流器；滑模变结构控制；空间矢量；数字信号处理器

Keywords power factor correction; reversible converter; variable structure control with sliding mode; space vector; digital signal processor 学友吧$m F6'5w-PI?

X\；U k'y1关键词功率因数校正；可逆变流器；滑模变结构控制；空间矢量；数字信号处理器

With the technical development of active power factor correction, some circuits in the ballast s and its operation are introduced, which have been used in high pressure sodium lamp.

针对荧光灯电子镇流器和高压钠灯电子镇流器中功率因数校正技术的发展，总结了典型的有源功率因数校正应用电路，分析了电路的基本工作原理，并在高压钠灯镇流器中得到了应用。

The Domistic Ballast and the Life of Compact Fluorescent Lamps;2. With the technical development of active power factor correction, some circuits in the ballast s and its operation are introduced, which have been used in high pressure sodium lamp.

针对荧光灯电子镇流器和高压钠灯电子镇流器中功率因数校正技术的发展，总结了典型的有源功率因数校正应用电路，分析了电路的基本工作原理，并在高压钠灯镇流器中得到了应用。

Electronic ballast ; high pressure sodium lamp ; power factor correction

电子镇流器；高压钠灯；功率因数校正

In single stage power factor correction converters, the voltage on the storage capacitor is not controlled, its wide voltage range has detrimental effect on the circuit performance.

中文摘要：在单级功率因数校正变换器中，不能控制储能电容电压，而且电压变化很大降低了电路的性能。

Simulation and test results show that the proposed converter can reduce output voltage and implement unit power factor correction, and its dynamic performance is satisfactory.

仿真分析和实验结果均表明，该变换器的输出电压大大降低，可实现单位功率因数校正，具有良好的动态性能。

Power factor correction ; bridgeless ; average current control ; one-cycle control ; L4981; IR1150

功率因数校正；无桥；平均电流控制；单周期控制； L4981； IR1150

Low-frequency instability in a single stage PFC converter is studied, which employs a cascade configuration of a boost converter and a forward converter.

研究了由Boost 变换器和Forward变换器级联构成的单级功率因数校正(power factor correction，PFC)变换器中的低频不稳定现象。

To aim directly at causality between export commodity using composition and economic development in China, differences of element input caused by appreciation of RMB, relationship between productive efficiency of trade department or not and exchange rate, and effect of every factor to micro commodity these problems, the paper applied econometric models such as vector auto regression, vector error correction model, varying parameter model and panel data model to expose contact between varied export commodity composition and different economic variables.

针对商品使用结构与中国经济发展的因果关系、人民币升值造成中国出口商品要素投入的差异、贸易和非贸易部门的生产率同汇率的关系、各影响因素对微观出口商品的影响四个相关问题，利用向量自回归、误差修正、变参数模型和面板数据模型等计量经济模型揭示不同类型的出口商品结构与各经济变量间的联系。

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。