方波

一种由三分频PWM波到方波转换的方法

A Method for Pulse Dropping in the Change from a PWM Waveform to a Square Wave

本文介绍了无刷直流方波电机的工作原理和其PWM控制器的设计。

The operation principle and designing method of PWM controller of brushless DC square wave motor is introduced .

基于DSP方波无刷直流电动机控制系统

Brush square ware DC motor control system based on DSP

电镀液中Cr（Ⅵ）含量的方波伏安法测定

Determination of Cr (ⅵ) Ion in Electroplating Solution by Square Wave Voltammetry

运用方波电位电沉积法制备了五重孪晶结构的Pd纳米棒。

Five-fold twinned Pd nanorods were prepared by square-wave potential electrodeposition .

基于DSP控制的交直流方波逆变电源系统研究

Research on AC / DC Square Wave Inverter Welding Power Source Based on DSP Control

用方波对比传递函数评价CCD像传感器图像输出信号的像质

Judging CCD Imaging Sensor Output Image Signal Quality by Square wave Contrast Transfer Function

缓慢调Q腔倒空过程输出平顶方波激光脉宽控制

Laser pulse width controlling in the process of cavity flows empty with slowly Q adjusting

本文分析了这种拓扑采用的方波和消谐波PWM结合的调制方法。

It is analyzed in the paper that square-wave operation combines with subharmonic PWM .

一种数字控制的低频方波HID灯用电子镇流器

A Low Frequency Square Wave HID Electronic Ballast with Digital Control

新型小功率HID灯用的低频方波电子镇流器

A Novel Low-Frequency Square-Wave Electronic Ballast for Low-Wattage HID Lamps

方法：共30例脑卒中患者作了BR检测。于眶上切迹处以方波脉冲电流刺激眶上神经。

Methods : Thirty patients with cerebral stroke were examined with BR .

低频方波HID灯电子镇流器关键技术研究

Research on Low-frequency Square-wave Electronic Ballast for HID Lamp

用EMD技术分解完好盒段与损伤盒段在方波信号激励下的动力响应信号，得到一系列IMF分量；

The dynamic response signals under exciting of a square wave signal are calculated .

在理论上对DDS的原理及其输出信号的性能进行了分析，采用DDS专用芯片实现了正弦波和方波信号发生器。

The thesis analyses the principle of DDS and the performance of output signals .

超快变换复合脉冲方波变极性TIG电弧行为

Ultrafast-convert hybrid pulse square-wave variable polarity TIG arc behavior

提出了一种用于折射率仪的采用方波调制的微波高Q腔谐振频率跟踪系统，分析了其工作原理。

This paper presents a resonant frequency tracking system based on Square - wave modulation of a high Q microwave cavity .

新型方波交流TIG焊电源电流调节电路的设计

Design of Regulating Circuit of TIG Electric Welder

数字化逆变交直流方波脉冲TIG焊机研制

Digital IGBT inverter AC / DC pulsed TIG welding power sources based on DSP

静电放电和方波EMP对微电子器件的效应

Research on Effects of ESD and Square-wave EMP on Microelectronic Device

应用RLC串联选频电路验证方波付里叶分解

Application of RLC series resonant circuit in verification of spuare wave

GTO斩波、稳幅方波输出准连续YAG激光电源

A current amplitude-stabilized square-wave output power supply with GTO chopping circuit for pumping quasi-CW YAG lasers

本文提出了半桥双降压（Buck）型准方波谐振功率变换器，使所有的半导体开关器件都可以在零电压的条件下开通。

This paper proposes a half-bridge dual Buck quasi-square-wave resonant converter in which all semiconductor switches operate under ZVS .

介绍了DSP控制的数字化逆变式IGBT交直流方波脉冲TIG焊的软件设计。

Software designing of TIG welding machine with digital IGBT AC / DC square-wave pulse inverter controlled by DSP was introduced .

相对常见的方波PWM调制，显著降低了绕组电流的谐波分量，提高了运行的稳定性。

Compared with the square wave PWM modulation , this modulation significantly mend harmonic component of the winding current and improve the operational stability .

控制电路采用PWM（脉宽调制）和PID（比例、微分、积分）控制，从而得到设备所需要的高频方波脉冲。

PWM and PID control method are adopted in the control circuit , so the high frequency rectangular wave which the device is needed is got .

恒压供水系统中智能控制方式的应用研究单片机智能控制的后备式方波UPS电源

The Intelligent Control Policy Applied Research on Water Supply System The Reserved Mode Square Wave UPS Single chip Micro computer Intelligent Control

实验表明，PID控制器具有较好的方波信号追踪精度，适用于低成本的静态、准静态的精确定位与进给场合。

The experiment shows that the PID controller has a good control precision of square waveform and adapted to low cost static and quasi-static accurate position and feeding occasion .

该文提出了一种两级低频方波输出的高性能电子镇流器，作为MH灯工作电源。

A two-stage low-frequency square-wave electronic ballast with good performance is proposed to operate MH lamps in the paper .

通过MOSFET的导通和截止产生方波，实现对方波电源的设计。

A square wave is produced through MOSFET open and stops to achieve the design of the other wave power .