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。
Meanwhile, PWM inverters using high switching frequency device that shortens the rise time of PWM output pulse have been widely applied in high-speed AC driving locomotive.
同时,高速交流传动机车广泛采用高开关频率器件的脉宽调制(PWM)逆变器,使得逆变器输出脉冲具有陡上升沿。
The overall semiconductor devices are mainly used to design high-speed launchers for ultrasonic pulse detection.
主要采用通用性半导体器件来设计超声检测用高速脉冲发射器。
This paper proposes a high speed and low power pulse latch design, and integrates it to high speed DSP address generator.
提出了一种高速低功耗脉冲寄存器的设计方法,并将其应用在高速DSP地址生成单元的设计中。
In this paper, a equivalence sampling module for high-speed pulse echo acquisition is introduced.
文中介绍用于高速脉冲回波采集的等效采样模块。
The pulse is directly read out by utilizing PLC high-speed counting module, the function of the locating controller can be achieved by program, thus the locating controller are saved.
利用PLC高速计数模块直接将外部编码器发出的脉冲读入,在PLC内部编程,通过程序控制完全能取代位置控制器的所有功能,从而省出位置控制器这一环节。
Considering the characteristics of digital-synthesis technology and pulse signal, this paper proposes a method to implement the adjustment of high-speed pulse using differential amplifier.
结合数字合成脉冲的技术特点及信号特征,提出利用恒流源差分放大电路具有非线性工作区的特点实现高频脉冲信号调理的方法。
An experimental study on the wear of pulse magnetized cemented carbide and high speed steel tools has been carried out according to the orthogonal design scheme.
通过现场正交优化试验,对经过脉冲磁化处理的硬质合金及高速钢刀具的耐磨性能进行了研究。
The results indicate that pulse magnetization can improve the wear of high speed steel, and meanwhile it prolongs the lifetime of high speed steel material.
实验结果表明:脉冲磁化处理能够提高高速钢材料的耐磨损性能,可以显著地提高高速钢材料的使用性能。
Measuring the parameters of pulse with high speed and precision is the base of electronic reconnaissance.
快速、高精度脉冲参数测量是电子侦察的基础和前提。
Main circuit uses independent RC pulse generator and control circuit can control the main circuit based on 8051 single chip microcomputer and TC4427 high-speed power MOSFET driver.
其主电路采用了独立式RC脉冲放电回路,控制电路则通过8051单片机和TC4427高速MOSFET驱动器完成对主电路的控制。
An optical pulse splitting-delaying device based on optical fiber was proposed for the replication of a high-speed analog pulse in the measurement system for high-speed optical pulses.
针对高速光脉冲测量系统提出了一种用于高速模拟脉冲信号复制的光纤光脉冲分路延迟器结构。
Complete combustion and high heat transfer efficiency are achieved through the strong stirring ability produced by high-speed pulse burners.
选用高速脉冲烧嘴,搅拌能力强,燃烧充分,传热效率高。
The pressure characteristics of pulse discharge in water are investigated by using high speed photography and pressure sensor.
同时利用高速摄影仪和压力传感器研究水中高压脉冲放电的压力特性。
The picosecond transient sampling gate is mainly applied in laser fusion and high energy physics experiments for single high-speed pulse real-time sampling.
皮秒级瞬态取样门主要应用于激光聚变实验和高能物理实验中,对单次高速脉冲进行实时取样。
In this paper various metal transfer modes in the pulse MIG welding with steel electrode are studied by means of high speed cine camera and oscillograph.
本文利用高速摄影机和示波器研究了钢焊丝熔化极脉冲焊的各种熔滴过渡形式,试验是在平焊和仰焊位置进行的。
The real time measuring system of high speed rotating blade vibration, tip timing sensor, pulse signal sampling system and analysis processing of blade vibration signal are researched.
研究了高速旋转叶片振动实时监测系统,叶端定时传感器、传感器脉冲信号采集电路和叶片振动信号的实时分析和处理。
The high speed microscope photography has been used to study on the back-ejecta of tantalum target in DRAGON ONE impacted by high intensity current pulse electron beam.
用高速显微摄影技术对强流脉冲电子束轰击钽金属靶的过程进行了研究,获得了“神龙一号”加速器上靶材回喷过程的实验图像。
The results indicate that pulse magnetization can significantly prolong the lifetime of the high speed steel tools.
结果表明,脉冲磁化处理能够明显地提高高速钢刀具寿命。
The character of high speed light pulse distortion and the fluency of the amplified spontaneous emission on the SNR gain under high power signal and pumper are analyzed.
同时进一步分析了在大信号、高泵浦功率条件下高速光脉冲信号放大过程中的各种畸变特性以及放大的自发辐射对系统信噪比增益的影响。
On the aspect of hardware, they include: narrow pulse and high frequency ultrasonic sensor's design, high frequency signal generator and receiver's design, high speed data completed sampling's design.
因此本文还详细阐述以下内容:硬件方面采用了高频窄脉冲信号发生及接收放大电路、高速数据采集电路;
Based on the analysis of requests to pulse generator of high speed small hole EDM drilling machine, a new combination pulse generator is developed in this paper with modular design method.
分析了高速电火花小孔加工对脉冲电源的要求,研制出一种新型脉冲电源——组合式高速电火花小孔加工脉冲电源。
This system consists of a B-mode ultrasonic equipment, a high-speed digitizer, a mechanical compression device and a pulse receiver.
该系统包括B型超声诊断仪、高速采集卡、螺旋挤压装置和脉冲接收器等装置。
The accuracy control of the motors in Gamma-ray irradiation of blood is realized by means of the inner pulse output code and the high-speed counter in PLC.
通过使用可编程控制器中的专用脉冲输出指令和高速计数器,实现了对辐照仪步进电机的精确控制。
As the important part of data acquisition system, high-speed pulse signal generator is commonly used in self-detection and test of the system.
高速脉冲信号源是数据采集系统的重要组成部分,常用于系统的自检与测试中。
The high-speed twin arc pulse GMAW welding technology possesses the advantages of high efficiency, high quality and automatization, and is paid much more attention to nowadays.
双电弧共熔池脉冲gmaw焊集高速高效、优质和自动化于一体,近来备受重视,但国内对此研究不多。
The paper introduces a new rotating speed measuring method for diesel engine utilizing pressure pulse signal on the tube wall of high pressure fuel injection system of diesel engine.
本文介绍一种利用柴油机高压泵喷油管壁上的压力波脉冲信号,来测量柴油机转速的新方法。
The paper introduces a new rotating speed measuring method for diesel engine utilizing pressure pulse signal on the tube wall of high pressure fuel injection system of diesel engine.
本文介绍一种利用柴油机高压泵喷油管壁上的压力波脉冲信号,来测量柴油机转速的新方法。
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