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verilog50%
- 本文主要介绍了50％占空比三分频器的三种设计方法，并给出了图形设计、VHDL设计、编译结果和仿真结果。设计中采用EPM7064AETC44-7 CPLD，在QUARTUSⅡ4.2软件平台上进行。 -This paper introduces a 50% duty cycle three dividers of the three design methods, and gives the graphic design, VHDL design, compile results and the
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- （1）改变拨码开关，能输出8种不同频率的方波信号，各信号占空比不同。 （2）调节电位器可以精密调节输出信号的频率 -(1) To change the allocation of code switching, can output eight different frequency square-wave signal, the signal duty cycle different. (2) regulating the potential for precision can adj
Driving_Buzzer_by_PWM
- The purpose of this document is to present how to use the Timer for the generation of a PWM signal tunable in frequency and duty cycle. As an application example, this document is based on a basic “music” synthesizer through an external buzzer. Examp
BasedonCPLDFPGAsuchasthefrequencyaccuracyofthedesi
- 基于CPLD／FPGA的可编程逻辑器件，借助单片机AT89C51；利用标准频率50～100MHz的周期信号实现系统计数的等精度测量技术。同时采用闸门测量技术完成脉宽,占空比的测量。-Based on CPLD/FPGA programmable logic devices, with single-chip microcomputer AT89C51 using a standard 50 ~ 100MHz frequency of the periodic signal, such as c
1
- 《Z源逆变器光伏并网系统模型及电路参数设计》 摘要：建立了Z 源逆变器光伏并网系统的小信号模型，定量分析了光伏模块输出电压动态性能与主电路各参数间的 关系。光伏模块输出电压的最大功率点跟踪（MPPT）控制与系统采样平均周期关系密切，而采样平均周期又受主电路 无源元件参数大小的影响。定量分析小信号模型建立了各部分之间的传递函数，这对选择MPPT 控制采样平均周期 和主电路参数优化设计起到了关键性指导作用。实验证明了理论分析的正确性和该模型的实用性。 关键词：逆变器/ 分布式发电
Frequency-Counter
- 频率计，可以精确的测量仪器的工作周期，频率，测量精确度高-Frequency, precision measuring instruments for the duty cycle, frequency, high precision measurement
TSL237
- The TSL237 light-to-frequency converter combines a silicon photodiode and a current-to-frequency converter on a single monolithic CMOS integrated circuit. Output is a square wave (50 duty cycle) with frequency directly proportional to light inten
UC3843
- Descr iption The UC3842/UC3843/UC3844/UC3845 are fixed frequencycurrent-mode PWM controller. They are specially designed for Off-Line and DC to DC converter applications with minimum external components. These integrated circuits feature a
dutyafrequencyMeter(zuizhong)
- PIC单片机，用捕获模式测量PWM信号的频率及其占空比-PIC microcontroller to measure the frequency and duty cycle of the PWM signal capture mode
EvPwm01
- 2812产生PWM，EVA和EVB均产生占空比为40 PWM波形，EVA下面的定时器均工作于连续增模式，而EVB下面的定时器均工作于连续增/减模式，各个全比较单元的死区时间为4.27us-2812 generated PWM, EVA and EVB produce 40 PWM duty cycle waveform EVA following timers are working in the continuous growth mode, the EVB following timers
EvPwm02
- 2812 PWM程序：初始化EVA，使得PWM1和PWM2输出互补的周期为1KHz的PWM波，占空比初始化为10 ，死区时间为4.27us-2812 PWM procedures: Initialize EVA makes PWM1 and PWM2 output complementary cycle 1KHz PWM wave, 10 duty cycle initialization, deadtime 4.27us
PWM
- 51单片机 pwm定时器中断程序，利用定时器中断，发生PWM波形 可调占空比-The 51 microcontroller pwm timer interrupt, using the timer interrupt, adjustable duty cycle of the PWM waveform
28335_EPWMconduct-PWM
- DSP28335实现PWM波形的产生，讲述了ePWM模块中产生PWM的必要配置，讲述了如何用ePWM模块实现0 ~100 占空比控制，PWM模块配置 。-The DSP28335 PWM waveform generation, about the necessary configuration for generating a PWM ePWM module about how module ePWM used to achieve 0 to 100 duty cycle control
PWMlDAC
- PWM 做DA的基本原理和实现方法，AVR单片机输出一定占空比的方波滤波后得到平滑的直流信号。-PWM do DA basic principles and implementation, AVR microcontroller output a certain duty cycle of the square wave filtered smooth DC signal.
duty
- DUTY CYCLE OF BRUSHLESS DC MOTOR.MODELLED ON BASIS OF MATHEMATICAL RESULT
DC-DC
- /功 能：1.实现与CPLD的通信,从而控制PWM的占空比. 2.实现LCD显示相关信息. // 3.实现对键盘按键的判断和确定相应的操作. 4.实现对电压电流的检测. // 5.实现过载保护功能,电流过大时,切断PWM输出,当排除过流故障后,自动恢复供电 // 6.实现用PID算法跟踪电压,实现稳压输出-/ Function: 1. Achieve communication with the CPLD to control the PWM duty cycle.
epwm_updown_aq_SPWM
- 这是一个基于DSP的简单PWM占空比输出方波实验程序，没什么难度，接下来我要上传比较复杂的SPWM矢量程序，求通过-This is a simple DSP-based PWM duty cycle output square wave experimental procedures, no difficulty, then I want to upload more complex vector SPWM procedures, seeking through
SVPWM
- 为了避免复杂的三角函数和求根运算，便于数字信号处理器的实时运算，提出一种新 的SVPWM算法。采用SPWM中调制波与载波相比较的规则采样思路，通过在静止坐标系下直接 计算每个参考电压矢量所对应的三相调制波的函数值，进而得到每相电压在一个PWM周期中的 占空比．该算法的主要特点是计算简单，只需要普通的四则运算，适用于数字化系统。在扇区划 分和占空比饱和的处理上较传统SVPWM算法更简便，且过调制范围也略有拓展，具有很大的实 用性。仿真和实验结果证实了该算法的有效性。-In or
Fast-PWM
- 开发平台ICCAVR7.14，本工程利用AVR单片机ATMEGA48pa T/C0产生快速PWM波，可以修改参数调整占空比。-Development platform ICCAVR7.14, this project generated using the AVR microcontroller ATMEGA48pa T/C0 fast PWM wave, you can modify the parameters to adjust the duty cycle.
PWM
- 智能循迹小车PWM波程序，用于控制电机或舵机的占空比-Intelligent PWM wave tracking car program for controlling the duty cycle of the motor or servo