本文介绍了空间电压矢量脉宽调制(SVPWM)的基本原理，并应用此原理进行了交流光伏水泵系统的设计。
This paper introduces the basic theory of space-vector PWM (SVPWM), and designs the ac photovoltaic water pump system on the basics of this theory.
LED系统应采用高速脉宽调制(PWM)数字式地驱动。
The LED system shall be digitally driven using high-speed pulse width modulation (PWM).
以电流给定，脉宽调制(PWM)调压调速系统为例，研究各种制动状态下的能量回馈过程。
Based on given electric current and Pulse Width Modulation (PWM) controlling system, the feedback process under each braking condition is studied.
该系统采用IGBT（绝缘栅双极型晶体管）器件，PWM（脉宽调制）控制技术。
The system adopted insulated gate bipolar transistor (IGBT) as its main circuit and pulse-width modulating (PWM) technology.
针对三相脉宽调制(PWM)整流器控制采用非线性反馈方法使控制器设计复杂化的问题，提出一种基于逆系统方法的三相pwm整流器的反馈线性化控制方法。
Aiming at the complicated design of three-phase PWM (Pulse Width Modulation) rectifier by using nonlinear feedback method, a linear feedback approach based on inverse system method is presented.
该系统通过红外雨量传感器检测雨量大小，使用模糊控制算法和脉宽调制技术调节雨刷器的速度；给出了系统的总体结构和具体设计方法。
This system senses the amount of rainfall by the infrared rain sensor, and adjusts the speed of wiper based on the fuzzy control algorithm and pulse width modulation technology.
机床电力拖动系统采用集成电路实现脉宽调制方式调速用IGBT管驱动电动机。
This article presents the application of IGBT-PWM regulating speed system in machine tool's electric drive.
此外，可变速驱动器的操作与不同系统部件的脉宽调制控制相结合。
Further, the operation of the variable speed drive is combined with a pulse width modulation control of different system components.
研究了二相逆变器-异步电动机系统的空间矢量脉宽调制(SVPWM)控制技术。
A novelty space vector pulse width modulation (SVPWM) technique for the two-phase inverter-fed asynchronous motors system is proposed, which can be widely used in the low or middle power level field.
送丝调速系统由功率MOSFET开关控制电路、脉宽调制电路及控制电路构成。
The wire feeder timing system consists of MOSFET switch control circuit, PWM circuit and control circuit.
系统采用空间电压矢量脉宽调制技术得到逆变器的开关控制信号。
The control scheme gets the switch control signal of inverter with the space voltage vector modulation technology.
研制了直流电动机脉宽调制转速控制实验系统。
A pulse width modulation (PWM) DC motor rotation speed control experiment system device is developed.
阐述了组织温度控制算法、治疗头水温控制以及脉宽调制信号产生三个系统核心子模块的设计。
Real time tissue temperature control algorithm, ultrasound applicator water temperature control and pulse width modulation (PWM) signal generation are described.
气动脉宽调制位置伺服系统是非线性的系统，在气缸摩擦力较大的情况下，采用传统的控制方法难以取得满意的效果。
Pneumatic PWM position servo system is nonlinear system. The satisfied results are difficult to be obtained with traditional control method while the friction force of cylinder is large.
介绍了三相开关磁阻电动机脉宽调制（PWM）控制系统及开关磁阻电动机（SRM）的基本结构与工作原理。
This paper mainly discusses a PWM control system for switched resistant motor (SRM) driving system and the base structure and working principle of SRM are introduced.
系统采用位置、速度和电流环三环控制，并结合空间矢量脉宽调制（SVPWM）算法。
The servo control system combines position loop, speed loop, current loop with algorithm of space vector pulse width modulation(SVPWM).
本文介绍一种脉宽调制型(PWM)逆变器异步电机变频调速系统稳态分析的直接数字计算方法。
A kind of direct numerical calculation method for the steady-state analysis of PWM inverter-fed induction motor drives was presented.
根据永磁同步电动机数学模型的特点，结合电流反馈型脉宽调制逆变驱动电器的结构，推导了无刷直流电动机系统的数学模型。
Mathematical model of BLDCM system is derived from the characteristic of mathematical model of PMSM and structure of inverting circuit of CRPWM.
文中着重阐述系统和功放电路的工作原理、数字脉宽调制器的硬件电路、软件设计方法，并给出实验结果。
In this paper, the operation principles of the total system and power-amplifier circuit, design method of digital PWM hardware circuit and software are described, and.
系统采用有限状态机设计脉冲分配并利用脉宽调制方法实现步距角的细分控制。
Pulse distributing is designed by finite state machine and the PWM realizes step angles subdivided control.
设计了以TMS320F 240为核心的控制系统，为了控制焊机的输出功率和焊机的输出外特性，设计采用了脉宽调制型控制方式。
A control system based on TMS320F240 was designed. PWM control mode was adopted to control output power and output characteristic of the machine.
脉宽调制器SG3525具有欠压锁定、系统故障关闭、软起动、延时pwm驱动等功能，因而得到广泛应用。
The pulse width modulator SG3525 has been used in various areas for its functions such as locking for the lack of pressure, closing system fault, soft starting, delaying PWM drive and so on.
针对常用控制方法对负荷保持系统产生的缺陷，采用模糊控制思想，利用PW M脉宽调制技术，达到了很好的控制效果。
Due to usual control methods making defects to retainable load system, fuzzy control with PWM is adopted, which has reached good control results.
系统采用电压空间矢量脉宽调制（SVPWM）技术并设计了具有自举功能的驱动电路。
The SVPWM technology was applied and the driving circuit with bootstrap function was proposed.
阐述了一种以可编程DSP控制器为核心的应用于变频系统中正弦脉宽调制（SPWM）方法的实现。
This paper discusses the method that is applied in SPWM variable frequency system based on editable DSP controller.
该系统由数字控制器、脉宽调制波形显示电路、全桥变换器、直流电动机和光电编码器。
The system consists of a digital control system, a PWM control waveform display, a full-bridge converter, a DC motor and load motor.
该系统由数字控制器、脉宽调制波形显示电路、全桥变换器、直流电动机和光电编码器。
The system consists of a digital control system, a PWM control waveform display, a full-bridge converter, a DC motor and load motor.
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