直流电机位置用脉冲宽度调制法控制。
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。
Position control of d. c. motors has been done by means of pulse width modulation.
控制器：脉冲宽度调制电子最高的效率。
Controller: Pulse width modulation electronic for highest efficiency.
之后阐述了脉冲宽度调制和脉冲频率调制的工作原理。
Then the principle of Pulse Width Modulation and Pulse Frequency Modulation is analyzed in detail.
高频脉冲宽度调制电力控制系统，可以实现用半导体开关。
High frequency pulse width modulation power control systems can be realized using semiconductor switches.
脉冲宽度调制或PWM，是通过数字均值获得模拟结果的技术。
Pulse Width Modulation, or PWM, is a technique for getting analog results with digital means.
因使用PWM(脉冲宽度调制)电路，产品具有较宽的调光范围。
Because of built-in PWM circuit (pulse width modulation circuit), dimming range is wider than earlier type products.
脉冲宽度调制控制器，包括一个禁用单位，水平传感器和过电流保护。
A pulse width modulation controller comprises a disabling unit, a level sensor and an over current protector.
该文首次将粒子群算法用于三电平正弦脉冲宽度调制开关时刻的优化。
Particle swarm optimization is firstly applied to optimize a three level voltage pulse width modulation inverter in this paper.
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。
Detailed description of the space vector pulse width modulation principle, useful for beginners.
介绍一种基于脉冲宽度调制(PWM)交流控制技术的新型静止移相器。
A new static phase shifter based on PWM AC controller is presented in this paper.
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。
A food waste disposer has a motor driven with pulse width modulation (' PWM ').
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。
A new optimal pulse width modulation (PWM) technique with unsymmetrical switching angles was introduced for high power applications.
这类开关电源的效率比常规的脉冲宽度调制（PWM）高，且基本上与负载无关；
The device has a higher efficiency than the conventional switching power supply with PWM, and it is almost load-independent.
设计电流模脉冲宽度调制直流转换器时，人们广泛采用斜坡补偿电路来消除谐波振荡。
In the design of current-mode PWM DC-DC converters, the slope compensation method is widely used to prevent sub-harmonic oscillation.
本文介绍了一种新的正弦脉冲宽度调制(pwm)法在MOSFET逆变器中的应用。
A new sinusoidal PWM is present with using power MOSFET inverter.
本文所设计的数字脉冲宽度调制器采用CMOS工艺，适合于不同的语音合成集成电路。
The digital pulse width modulator adopts CMOS technology and is suitable for a variety of speech synthesis integrated circuits.
FANUC一11型交一直一交频调速系统，调速的控制方法为脉冲宽度调制(pwm)法。
The AC servo system of FANUC 11 series is a AC-DC-AC conversion frequency speed adjusting system, which use PWM as the speed-adjusting control method.
一种数字电路实现的脉冲宽度调制控制在可以将其建模为二阶或更高阶系统的系统中传输的电力。
A digital circuit implementing pulse width modulation controls power delivered in what one can model as a second order or higher order system.
旨在对arm的深入学习，论文对STM 32定时器产生PWM(脉冲宽度调制)输出进行了研究。
On the intention of study on ARM, timer of STM32 produce pulses PWM (width modulation) is studied in this paper.
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。
This controller integrates pulse width modulation(PWM) and pulse density modulation(PDM) together, and can easily change between the two modulations.
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 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.
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。
It also includes, Hall element inputs, a sequencer for commutation control, fixed off time pulse width modulation (PWM) current control and locked rotor protection.
电流型四象限变流器是一种脉冲宽度调制的交直流变换装置，具有功率因数高、谐波电流小、再生方便等优点。
Currcnt-type four quadrant converter is an AC-DC converting device with pulse width modulation, whose advantages are high power factor, low harmonic current and convenient regeneration etc.
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。
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.
电力变换器主电路部（3），其根据该脉冲宽度调制波对开关元件进行驱动，将直流电压转换为三相交流电压；
A power converter circuit (3) drives a switching device by the pulse-width modulated wave for converting a direct current into the three phase alternating current.
在第二子模式（“低输出功率子模式”）中，使用脉冲宽度调制来调节VOUT，但转换器开关频率固定在第一频率。
In a second sub-mode ('low output power sub-mode'), VOUT is regulated using pulse width modulation, but the converter switching frequency is fixed at a first frequency.
在某些实施例中，转换器具有第三子模式(“高输出功率子模式”)，其中使用脉冲宽度调制，但开关频率固定在第二频率。
In some embodiments, the converter has a third sub-mode (' high output power sub-mode '), in which pulse width modulation is used but the switching frequency is fixed at a second frequency.
在某些实施例中，转换器具有第三子模式(“高输出功率子模式”)，其中使用脉冲宽度调制，但开关频率固定在第二频率。
In some embodiments, the converter has a third sub-mode (' high output power sub-mode '), in which pulse width modulation is used but the switching frequency is fixed at a second frequency.
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