Pulse width modulation is widely used in voltage regulators.
脉宽调制技术是广泛应用于稳压器。
Pulse Width Modulation electronic speed control for highest efficiency.
脉宽调制效率最高的电子速度控制。
The theory of space vector pulse width modulation (SVPWM) is discussed in detail.
对空间矢量脉宽调制(SVPWM)的理论进行了较详细的讨论。
Position control of d. c. motors has been done by means of pulse width modulation .
直流电机位置用脉冲宽度调制法控制。
It is difficult to analyse the sampling Control system with pulse width modulation.
对宽度调制的脉冲系统的分析比较困难。
Controller: Pulse Width Modulation electronic speed control for highest efficiency.
控制器：最高效率脉宽调制电子调速器。
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。
A novel random pulse width modulation technique based on small switch losses is proposed.
提出了一种基于最小开关损耗的随机脉宽调制技术。
A new Space Vector Pulse Width Modulation (SVPWM) method based on control factor is proposed.
介绍一种基于控制因子的三电平空间矢量方法。
Detailed description of the space vector pulse width modulation principle, useful for beginners.
说明：详细地讲述了空间矢量脉冲宽度调制的原理，对于初学者很有用。
High frequency pulse width modulation power control systems can be realized using semiconductor switches.
高频脉冲宽度调制电力控制系统，可以实现用半导体开关。
Based on the phase shift pulse width modulation technology, the mathematical non-linear model is developed.
基于移相载波调制，建立了变频器的非线性数学模型。
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。
As one of inverters, Sinusoidal Pulse Width Modulation inverters can achieve low total harmonic distortion output wave.
正弦脉宽调制逆变器作为逆变器的一种，可输出谐波含量小的正弦波形。
By analyzing the base principle of space vector pulse width modulation (SVPWM), it is proved that the DC voltage utilization.
在分析空间矢量调制(SVPWM)基本原理的基础上，证明了SVPWM具有最大的直流电压利用率。
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。
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。
As one of inverters, Sinusoidal Pulse Width Modulation (SPWM) inverters can achieve low total harmonic distortion (THD) output wave.
正弦脉宽调制(SPWM)逆变器作为逆变器的一种，可输出谐波含量小的正弦波形。
In this paper, a kind of sensor with constant power pulse width modulation and force balance is described and analysed theoretically.
本文设计了一种恒功率脉冲调宽式力平衡式传感器，并从理论上对它作了分析。
The servo control system combines position loop, speed loop, current loop with algorithm of space vector pulse width modulation(SVPWM).
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。
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。
Pulse width Modulation device is a circuit which can produce square wave signal with fixed period and adjustable pulse duration ratio (pulse width).
脉宽调制器是一种能够产生周期固定而占空比(脉宽)可调的方波信号的电路。
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。
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。
With single polar SPWM(Sine Pulse Width Modulation), the whole solution of hardware and software is presented based on the resource of the DSP controller chip.
该系统采用单极性调制的SPWM方式，根据DSP芯片的各类资源给出了一套具体的数字化实施方案。
Space vector pulse width modulation(SVPWM) and multi-step commutation method of bi-directional switches are the basic control strategies of the matrix converter.
空间矢量脉宽调制和双向开关多步换流方式是矩阵式变换器的基本控制策略。
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。
In other words, pulse width modulation is a modulation technique for generating variable width pulses to represent the amplitude of an input analog signal or wave.
或者换句话说，脉宽调制是一种调制技术，为发电可变脉冲宽度为代表的幅值输入模拟信号或波。
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 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。
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