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。
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。
According as compare of voltage deviation and its variable ratio, optimal control of voltage and current is realized with querying fuzzy control sheet and adjusting adverse variable pulse width.
比较电压偏差及其变化率，查询模糊控制表，调节逆变脉宽，可实现电压及电流的理想控制。
Pulse Width Modulation electronic speed control for highest efficiency.
脉宽调制效率最高的电子速度控制。
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。
This synchronization control set can improve its imaging quality and its action distance by conveniently adjusting the pulse delay and the pulse width.
这种同步控制装置能方便地通过调整脉冲延时和脉宽来提高系统成像质量和作用距离。
This integrated circuit control the frequency and pulse width of the high voltage IC output signal conveniently by adjusting the input date of IC digital input port.
该集成电路通过对数字输入端口的输入数据的调节，灵活的控制了高压开关集成电路输出信号的频率和脉宽。
The control device creates driving voltage output every time. One driving voltage has duration, called a pulse width.
控制仪每次输出一位的驱动电压，一个驱动电压持续时间，称为脉冲宽度。
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。
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.
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。
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。
SPWM is a set of constant amplitude but unconstant width rectangular serial pulse produced by control return circuit to approximate sinusoidal voltage waves.
(正弦脉宽调制)是由控制回路产生一组等幅而不等宽的矩形脉冲列，用来近似正弦电压波。
A photovoltaic pump system based on a new Z-source inverter, whose theory and control strategy of space vector pulse width modulation (SVPWM) with short through states were introduced.
提出了一种基于新型Z源逆变器的光伏水泵系统，阐述了Z源逆变器的工作原理及其带直通零矢量的SVPWM控制策略。
The equipment adopts electronic control spraying and blowing system and can adjust pulse cycle and width freely. Its operation is flexible and convenient.
本设备采用电子控制喷吹系统，任意调节脉冲周期和宽度，操作灵活方便。
The pulse width of the key control signal SPWM is acquired by the sampling method based on median rule.
关键的控制信号SPWM的脉冲宽度采用中值规则采样法来求取。
Next, the mix control strategy were analyzed in detail, which is the control method of combining the space vector pulse width modulation and the rotor magnetic filed directional control.
接下来，本文重点分析了基于矢量调制的组合控制策略，即将矩阵变换器的空间矢量脉宽调制和电动机转子磁场矢量控制有机结合的控制方法。
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。
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。
The mathematic research on stability of current control mode is discussed in this paper, and a new concept of the driver pulse width stability of the converter is proposed.
给出了峰值电流控制模式稳定性的数学证明，提出了驱动脉冲宽度稳定性概念。
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。
Further, the operation of the variable speed drive is combined with a pulse width modulation control of different system components.
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。
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。
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 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。
The pulse width measuring of the different frequency square wave signals was done by using interrupt control technology.
应用中断控制技术测量不同频率方波信号的脉冲宽度。
It has functions of dynamic power management (DPM), depleted battery detection and pulse width modulator (PWM) to accurately control battery charge current and voltage.
它具有动态电源管理(dpm)、利用脉宽调制控制(PWM)充电电流和电压、耗尽电池检测等功能。
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。
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。
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