Design of a Boost AC-DC Active Power Factor Correction Controller 升压型AC-DC有源功率因数校正控制器的设计
The power factor correction controller NCP1601 operates in discontinous conduction mode ( DCM) and critical conduction mode ( CRM) and takes advantages from both operation modes. NCP1601型功率因数校正控制器可工作在不连续传导模式(DCM)和临界传导模式(CRM)二种工作模式下。
According to the power factor of compensation point, the controller chooses different control strategies to maintain the power factor between the setting value and1. 控制器根据补偿点的功率因数大小,实时选择控制策略,使补偿点的功率因数值维持在设定值和1之间。
Research Design of the Induction Motors, Power Factor Controller 电动机功率因数控制器的研究与设计
Choosing the Right Power Factor Controller Solution 选择正确的PFC解决方案
Three-phase boost rectifier with series-connected dual-boost topology is analyzed in this paper, and a general PFC controller based on one cycle control is proposed for three-phase boost rectifiers. Low current distortion and unity power factor can be achieved in the proposed controller. 分析了具有串联升压拓扑结构的三相boost整流器,提出了一种基于单周期控制技术的三相PFC控制器,它可以实现单位功率因数和低电流畸变。
Intelligent Type Zero-in Zero-out Power Factor Compensation Controller 智能型零入零出功率因数补偿控制器
Research on Three-phase High Power Factor Correction Based on Predictive Digital Current Controller 基于预测电流控制的三相高功率因数PWM整流器研究
Describes a power factor correction ( PFC) circuit, in which the power circuit is a boost converter controlled general switch mode controller IC. 介绍了一种用普通开关电源专用集成电路控制块作为控制电路,以升压式变换器作为功率电路的功率因数校正电路。
Design of Dynamic and Following Power Factor Compensation Controller Based on FPGA 基于FPGA动态跟踪型功率因数补偿控制器的设计
On the basis of high power factor, its 8 pins simple package and less outer devices greatly reduce the design cost for power factor correction ( PFC) controller circuit. 在高功率因数的基础上,其8个管脚的简单封装和较少的外围器件,又大大降低了功率因数校正PFC变换器电路的设计成本。
To correct the power factor, this paper researches the controlling effects of neural network controller ( NNC). And comparisons are made between the simulation results of the NNC and those of the traditionally used current mode controller ( CMC). 为改善功率因数,研究了使用神经网络控制器(NNC)对AC/DC开关变换器进行控制,并与传统的电流模式控制器(CMC)的控制效果进行了仿真比较。
For three-level rectifier, this paper investigated the performance of the unit power factor rectifier controlled by nonlinear PID controller. 以三电平PWM整流器为对象,研究了使用非线性PID控制器的单位功率因数整流器的性能。
The design of power factor compensate controller based on PLD 基于PLD功率因数补偿控制器的设计
In order to improve the response speed of SVC controller, a fast detection method of the signals such as the effective values of the voltages and the currents, the reactive power and the power factor required by SVC controller is investigated. 为提高SVC控制器的响应速度,探讨了SVC控制中所需要的信号,包括电压和无功电流的有效值、无功功率和功率因数等的检测方法。
Research of New Intelligent Power Factor Controller 一种新型功率因数智能自动控制器的研制
This paper presents a digital controlled SPWM three phase bridge unity power factor rectifier which is based on a DSP controller. 本论文设计了一个基于DSP全数字控制的SPWM三相桥式高功率因数整流器。
Latest Low Cost Active Power Factor Correction Controller Technique Research 最新低成本有源功率因数校正控制器技术研究
The Study of a Kind of Power-factor Controller 一种功率因数控制器的研究
The feasibility of the strategy of non dead time was confirmed by experiments of the three phase SPWM rectifier. For three-level rectifier, this paper investigated the performance of the unit power factor rectifier controlled by nonlinear PID controller. 在三相高功率因数PWM整流器样机上的实验结果证明了控制策略的可行性。以三电平PWM整流器为对象,研究了使用非线性PID控制器的单位功率因数整流器的性能。
This paper gives a power factor correction ( PFC) scheme with DSP, analyzes the principle and the computer simulation algorithm of the DSP controller. 针对单相PFC模拟控制拓扑结构,分析了其基于数字信号处理器(DSP)实现的原理和仿真算法。
General Situation And Trends Of Power Factor Correction ( PFC) Controller ICs 功率因数校正控制器IC的发展现状与动向
This paper introduces a kind of nonlinear-carrier ( NLC) controller for high power factor boost converters. Using the NLC controller, input line voltage and current sensing, error amplifier in the current shaping loop, and analog multiplier/ divider are eliminated. 阐述了一种非线性载波(Nonlinear-carrier)控制的PFC电路,该电路与传统单级功率因数校正电路相比不再需要输入电压、电流采样以及复杂的模拟乘法器和电流误差放大器电路。
The Software design contains trigger pulse module, power factor detection module, load rate calculation module and energy-saving controller algorithm module. 软件设计方面主要分为触发脉冲模块、功率因数检测模块、负载率计算模块和节能控制算法模块的设计。
The power factor correction makes the system power factor and total harmonic distortion performance well. Controller can precisely control the LED current upon primary side regulated ( PSR). It spare optocoupler and secondary side regulated control circuit. 由于前置了功率因数调整器,使系统的功率因数和总谐波失真表现良好,而基于原边控制的控制器能够精确的控制LED电流,并且省去了光耦和二次测控电路,有效的减小了体积。
A single-stage power factor correction ( PFC) converter is combined by the PFC stage and a DC/ DC converter into one stage with shared switch and controller, They can be improved by the input current shape and regulate the output voltage rapidly. 单级功率因数校正(PFC)技术把PFC变换器和DC/DC变换器结合在一起,共用一个开关管和一套控制电路,能够实现输入电流的整形和输出电压的快速调节。