power factor是什么意思

用法例句

Principle and approach to improve power factor of induction furnace of intermediate frequency;

一种提升中频加热炉功率(因数)的原理及方法

Design and experiment of high power factor converter on arc welding inverter power source;

高功率(因数)弧焊逆变电源的整流器设计与实验

The Method of Group-Control for Electronic Ballasting of the High Power Factor;

高功率(因数)电子镇流的群控方法

The designing of switch power source high power factors converter;

开关电源高功率(因数)变换器设计

Methods are explored to improve power factors of ion membrane of the rectifying device through control of the conduction angles.

介绍了整流装置的功率(因数)的特点,分析了导通角的控制方法。

By analysing the short net power factors and electricity pressure lowered of silicon furnace,it expounds the influences to efficency of voltage trans-ferance and production electricity consumption caused by short net function,it also discusses the method of improving short net funtions and achivements made.

通过对硅铁炉短网功率(因数)和电压降的测试分析指出了短网性能对电能输送效率以及产量电耗的影响 ,探讨了改进短网性能的方法和所取得的效果。

A power-factor corrector of the small welding power inverter;

小功率逆变电源的功率(因数)校正电路

Simulation compute for power-factor of DC drive electric locomotive;

直流传动电力机车功率(因数)的仿真计算

A.C—D.C Converter with the Power-factor Nearly Unity;

功率(因数)接近1的交—直变换器

This paper introduces the harm caused by low power factor and harmonics,explaines the definitions of power factor and THD,dissertates the basic principle and the control methods of active power factor correction,introduces interior structure and working principles of UC3854-an IC used only on APFC s control,explains typical circuit of UC3854 and testing result,dissertates its ascendant capability.

文中介绍了谐波存在的危害和APFC控制常用的专用集成芯片UC3854的内部结构及其工作原理,论述了有源功率(因数)校正的基本工作原理及其控制方式和优越的性能,给出了功率(因数)和THD的定义及UC3854典型应用电路和实测结果。

This paper presents the operating principle of Active Power Factor Correction(APFC) circuit with one-cycle control.

采用基于单周控制的专用芯片IR1150[2],设计了一台1kW的功率(因数)校正装置。

The control circuits can be realized by using modified single phase PFC algorithm.

介绍了一种交错并联的单相功率(因数)校正(PFC)电路及其控制方法,利用该电路中的耦合电感实现了Boost电路的二极管零反向恢复损耗,从而提高了电路效率,减少了EMI。