Adopt high frequency multi voltage circuit, PWM pulse width modulation technology and high-power IGBT devices.
采用高频倍压电路，应用PW M脉宽调制技术和大功率IGBT器件。
It also includes, Hall element inputs, a sequencer for commutation control, fixed off time pulse width modulation (PWM) current control and locked rotor protection.
它还包括霍尔元件输入、整流控制定序器、固定停机时间脉冲宽度调制(PWM)电流控制以及锁定转子保护。
The LED system shall be digitally driven using high-speed pulse width modulation (PWM).
LED系统应采用高速脉宽调制(PWM)数字式地驱动。
With the relay can be; but if you need to speed, you can use the transistor, FET and other switching elements to achieve PWM (pulse width modulation) speed.
用继电器即可；但如果需要调速，可以使用三极管，场效应管等开关元件实现PWM（脉冲宽度调制）调速。
Because of built-in PWM circuit (pulse width modulation circuit), dimming range is wider than earlier type products.
因使用PWM(脉冲宽度调制)电路，产品具有较宽的调光范围。
Change the inverter output voltage or output current are two kinds of different ways, namely, PAM pulse amplitude modulation control and PWM control pulse width modulation.
改变变频器的输出电压或输出电流有二种不同的方法，即PAM脉冲幅值调制控制和PW M脉冲宽度调制控。
A new optimal pulse width modulation (PWM) technique with unsymmetrical switching angles was introduced for high power applications.
针对大功率逆变器的应用介绍了一种基于不对称开关角的优化脉冲宽度调制方法。
Real time tissue temperature control algorithm, ultrasound applicator water temperature control and pulse width modulation (PWM) signal generation are described.
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。
This controller integrates pulse width modulation(PWM) and pulse density modulation(PDM) together, and can easily change between the two modulations.
该设计集成了脉冲宽度调制（PWM）和脉冲密度调制（PDM）两种调制方式，并可以在两者间切换。
The operating principle of space vector pulse width modulation (SVPWM) is first described, and then the proposed self-tuning space current vector PWM (STPWM) technique is introduced.
首先介绍空间向量脉宽调变技术的基本原理，接著说明所设计的可自我调整参数之空间向量电流控制技术（STPWM）。
A food waste disposer has a motor driven with pulse width modulation (' PWM ').
一种食物垃圾处理器，具有利用脉冲宽度调制(“PWM”)驱动的电机。
This paper studied the three-phase PWM(pulse width modulation) rectifier in dual PWM variable frequency speed regulation system.
对双PWM变频调速系统中的三相PWM整流器及其控制方法进行了研究。
Pulse current is adjusted by pulse width modulation(PWM)signals from the single-chip processor. In addition, multiple $MA actuators' cooperation helps the active catheter to succeed in guiding motion.
利用单片机输出的脉宽调制（PWM）信号对脉冲电流进行调节和多个驱动器之间的相互配合作用，实现主动导管的导向动作。
A pulse width modulation (PWM) DC motor rotation speed control experiment system device is developed.
研制了直流电动机脉宽调制转速控制实验系统。
The existing VLSI neural network design method based on the pulse width modulation (PWM) technique is modified in this paper.
改进了现有的基于脉宽调制(PWM)技术的VLSI神经网络设计方式。
Base on the response characteristics of FED, the improved grayscale pulse width modulation (PWM) method was designed.
根据FED显示器响应特性，设计了改进型pwm灰度调制方法。
The Sine wave Pulse Width Modulation (SPWM) is used to reduce the wastage and the noise of the motor more effectively, as comparing to the equal pulse width modulated PWM.
相对于等宽脉宽调制PWM，正弦波脉宽调制SPWM可以有效地降低电动机的损耗和噪声。
Output amplitude in both modes can be controlled by varying the DC source voltage or by varying the pulse-width (pulse-width modulation, PWM).
两种形式的输出幅度可以通过改变直流电源电压或通过改变脉冲宽度(脉宽调制pwm)来控制。
The output of PWM(pulse width modulation)was automatically adjusted by TL494 to control the field current of the generator, which accomplished stabilizing output v.
通过TL494自动调节PWM输出控制励磁电流，达到稳定发电机输出电压、输出电流和限流充电的目的。
Based on given electric current and Pulse Width Modulation (PWM) controlling system, the feedback process under each braking condition is studied.
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。
The paper presents a novel ultra-audio frequency (UAF) induction welding power based on ZCS-PWM(Zero Current Switching-Pulse Width Modulation) technology.
介绍一种基于ZCS-PWM（零电流开关-脉宽调制）技术的新型超音频感应焊接电源。
The latter takes PWM (Pulse-Width Modulation) control and ZVS control as its target, synchronizes with clock to realized its driven waveform. In addition, adaptive dead-time control is analyzed.
由程序综合的控制电路以PW M控制和ZVS控制为目标，并由时钟同步，实现了对驱动波形的控制。
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.
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。
Pulse Width Modulation, or PWM, is a technique for getting analog results with digital means.
脉冲宽度调制或PWM，是通过数字均值获得模拟结果的技术。
The HVDC light is a new DC transmission technology based on voltage source converter(VSC)and pulse width modulation(PWM)technology.
建立了基于电压源换流器（VSC）的高压直流（HVDC）（VSC-HVDC）输电系统的标幺值数学模型。
However, Pulse Width Modulation (PWM) which was input from inverter is characterized by steep rising edge and high frequency, resulting in the too early failure of motor insulation.
然而，逆变器输出的PWM(脉冲宽度调制)连续高压脉冲的上升沿很陡、频率很高，导致在脉冲电压下牵引电机绝缘过早失效。
This paper presents the principle and virtues of a current-mode-control pulse width modulation(PWM), and makes a comparison with traditional voltage-mode-control.
本文介绍了开关电源的电流型PWM控制技术的原理及特点，并和传统的电压型控制作了比较。
HVDC Light is a new HVDC transmission system, based on Voltage Source Converters (VSC) and Pulse Width Modulation (PWM).
轻型直流输电是一种新型的直流传输技术，采用电压源型(vsc)换流站以及PW M控制技术。
It consists of a doubly fed induction generator (DFIG) and a voltage-source pulse width modulation (PWM) rectifier-inverter used, as an AC exciter.
它由双馈电机(DFIG)和作为交流励磁电源的电压源型双pwm变换器组成。
It consists of a doubly fed induction generator (DFIG) and a voltage-source pulse width modulation (PWM) rectifier-inverter used, as an AC exciter.
它由双馈电机(DFIG)和作为交流励磁电源的电压源型双pwm变换器组成。
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