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1·This paper presents a digital pulse width modulator based on MCS-51 Microcomputer.

本文介绍了单片机控制的数字脉宽调制器。

2·The digital pulse width modulator adopts CMOS technology and is suitable for a variety of speech synthesis integrated circuits.

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。

3·This paper presents a new type of Electronic Servo valve (ESV) which includes the pulse width modulator, electro-mechanical actuator and variable section area valves.

本文介绍了一种新型的电子伺服活门。它由脉冲调制器和机电作动器以及变截面活门组成。

4·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。

5·The pulse width modulator SG3525 has been used in various areas for its functions such as locking for the lack of pressure, closing system fault, soft starting, delaying PWM drive and so on.

脉宽调制器SG3525具有欠压锁定、系统故障关闭、软起动、延时pwm驱动等功能，因而得到广泛应用。

6·The pulse width modulation character of voltage drive -type pulse width modulator TL494 is introduced. The applicable situation of TL494 in semi -bridge alternate switch power is also analyzed.

介绍了电压驱动型脉宽调制器件TL494的脉宽调制特性，并对其在半桥变换开关电源中的应用情况做了分析。

7·The paper describes the design method of a wide pulse modulator. The output is ideally any width in accordance with the design idea.

介绍一种宽脉冲调制器的工作原理和设计方法，依照此思路设计的脉冲调制器，对输出脉冲的宽度基本上没有限制。

8·This kind modulator is characterized by repetitive frequency and easily-adjustable width of the output pulse for utilization in solid state switch.

脉冲调制器的放电回路采用先进的固态开关技术，以实现频率和脉宽的连续可调。