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.
脉冲幅度调制波（PAM）是脉冲调制的一种形式，在通信和控制系统中得到广泛应用。
Pulse amplitude modulation (PAM) is one form of the ways, in which it is widely used in the system of communication and control.
相同的智能控制系统管理着高效的空调制冷系统，该系统也是根据整个室内环境和每个地方的入住率智能调节其冷气的输出量。
The same "smart" controls govern a high-efficiency a/c, which also varies its output according to general environmental conditions and occupancy in each space.
将这种过调制算法应用于永磁同步电机矢量控制系统中，提高了逆变器直流母线电压利用率，实现了对永磁同步电机弱磁运行区域的扩展。
The overmodulation algorithm is applied in the PMSM vector control system to increase output voltage of SVPWM inverter, and to extend the PMSM operation range.
分析了空间矢量pwm的调制算法以及实现方法，最后设计了异步电机的双闭环矢量控制系统。
After space vector PWM modulation algorithms and implementation methods have been analyzed, dual closed-loop vector control system of asynchronous motor is worked out.
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.
CAT V收费控制系统中我们项目组完成了系统软件设计、前端数据调制器、终端收费控制器的开发工作。
The CATV charge and control system is mainly composed of the management software, the header data modulator and the terminal charge and control equipment.
阐述了常规气动伺服控制系统研究的现状，认为以PWM和PCM调制方式为主的开关伺服控制技术仍然是研究的热点。
Based on the development situations of the pneumatic servo control technique, the main research was also aimed at the PWM and PCM on-off servo control system.
介绍了无刷直流电机控制系统中的四种PWM调制方式，详细分析了四种不同的调制方式对无刷直流电机换相转矩脉动的影响。
Four PWM modes used in the brushless DC motor control system are introduced and their different influences on the commutation torque ripple of BLDC motors are analyzed in detail.
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.
提出了一种直流脉宽调制伺服控制系统的基本框架，其算法通过嵌入式数字信号处理器(DSP)来实现。
A basic frame of direct current pulse width mode of servo control system is presented. Algorithm is realized by embedded digital signal processor.
主要工作包括以下几个方面：1）自关闭脉宽调制灰度控制系统。
The main work and achievements are listed as follows:1) Self-turn-off pulse-width modulation for OLED gray-scale controlling.
本系统主要由数字频率合成电路、调制电路、宽带功率放大、单片机控制系统等模块构成。
The system is mainly composed of Digital Synthesis circuit, modulation circuit, broadband power amplifier, the MCU control system, and a module.
设计了由PW M脉宽调制技术构建的工作在速率控制模式下的反作用飞轮控制系统，并对其硬件电路进行了具体实现。
The reaction flywheel control system was designed by using PWM technology under the velocity control mode, and the hardware circuit was also set up.
设计了由PW M脉宽调制技术构建的工作在速率控制模式下的反作用飞轮控制系统，并对其硬件电路进行了具体实现。
The reaction flywheel control system was designed by using PWM technology under the velocity control mode, and the hardware circuit was also set up.
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