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- The result manifests that the adpotion of APFC(active power factor correction) technology can make the power factor close to 1 and the THD less than 5%. 结果表明;引入APFC(有源功率因数校正器)技术的电源可实现功率因数接近于1;总谐波分量THD<5%25。
- Main circuit topologies and control methods are analyzed and compared on the basis of the principle of Active Power Factor Correction (APFC), which characteristics are summarized. 本文在论述有源功率因数校正基本原理的基础上,对有源功率因数校正的主电路拓扑及控制方法进行了分析与比较,总结其特点;
- It is widely applied in power factor correction and active power filer for power harmonic suppression by its virtue of simple control circuit and excellent dynamics. 由于其控制电路简单，控制效果好，在电力谐波治理领域中的功率因数校正器和有源电力滤波器的控制中得到了广泛运用。
- In accordance with the nonlinear and time-varying characteristics of the active power factor correction system, this theme researches the application of Fuzzy control in the active power factor correction (APFC) system. 针对有源功率因数校正(APFC)系统中控制对象非线性和时变的特点,本文研究了Fuzzy控制算法在APFC系统中的应用。
- In order to shape the input line current and to reduce the harmonic currents, the active power factor correction circuitry (APFC), consists of APFC controller TDA4863, is required in front of the electronic ballast. 为了得到连续的交流电网输入电流和降低谐波电流,在电子镇流器前端配备了有源功率因数控制(APFC)模块TDA4863组成的有源功率因数校正电路。
- In the part of rectifier, good performance of 3-phase active power factor correction was complete by using three isolate single-phase APFC circuits. Applying power factor controller MC34262, only a little additional circuit were needed. 在整流部分中,利用单相功率因子校正技术实现了三相功率因子校正,用三个单相功率因子控制芯片MC34262完成了三相功率因子校正部分,外围电路少,功率因数高,结构简单。
- Those PSS circuits which have good overall performances are applied to single-phase PWM Active Power Factor Correction (APFC) circuit which is high-frequency PWM technology and also operated in CCM. 本文还将那些具有综合性能特性较佳的PSS电路也应用到高频PWM技术的AC-DC整流器的有源功率因数校正器( Active Power Factor Correction,APFC)上。
- The techniques, PWM soft switching, active power factor correction(APFC), electric-magnetic compatible and electric-magnetic interfere design, simulation research and brainpower controlling are the new focus of welding power supply. 脉宽调制软开关电路、有源功率因数校正、电磁兼容和电磁干扰设计、仿真研究及智能控制技术的应用已成为当前焊接电源研究的新热点。
- Introduction was made to a kind of latest discontinuous conduct mode boundary(DCM Boundary)active power factor correction(APFC)controller MC34262's main features with discussion stress on the design process of its applicable circuit. 介绍了一种最新的临界断续导电模式DCM Boundary的有源功率因数校正APFC控制器MC34262的主要特点,并重点讨论了其应用电路的设计过程。
- Study of Active Power Factor Correction Technology 有源功率因数校正技术的研究
- active power factor correction (APFC) 有源功率因数校正
- active power factor correction(APFC) 有源功率因数校正
- digital control / active power factor correction 数字控制/有源功率因数校正
- The technology of the dual-Boost Active Power Factor Corrector (APFC) is the emphases of this thesis. And the purpose is to study a high performance digital controlled APFC. 本文重点就UPS 前端输入采用的双Boost 型APFC 技术进行探讨,目的在于研究一种数字化高性能的功率因数校正器,选取平均电流控制的方式,以期得到低噪声干扰,高功率因数的试验结果。
- APFC(Active Power Factor Correction ) 有源功率因数校正
- A 150W AC/DC converter with universal input and fixed output voltage is analyzed and then designed based on MC33262. The principle and structure of active power factor corrector (APFC) and MC33262 is discussed in this paper. 文中设计了一种采用功率因数校正专用芯片MC33262的宽电压输入范围、固定升压输出的150W的AC/DC变换器,详尽地分析和讨论了有源功率因数校正(APFC)控制技术原理、APFC硬件电路结构。
- Realization Of Active Power Factor Correction Converter 有源功率因数校正变换器的实现
- VoltageControl and Power Factor correction. 电压控制与功率因素调整。
- Voltage Control and Power Factor correction. 电压控制与功率因素调整
- An automatic storage battery charger based on active power factor correction 基于功率因数校正的蓄电池全自动充电器
