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zf3127.doc
- 函数发生器是一种在科研和生产中经常用到的基本波形产生器，集成函数 波形发生器一般都采用ICL8038或5G8038，而它们只能产生300kHz以下的中低频正弦波、矩形波和三角波，且频率与占空比不能单独调节，从而给使用带来很大不便。本文介绍由LM324和稳压管组成的低频函数波形发生器，该电路能够产生正弦波、方波和三角波信号，频率能以10Hz的间隔在20Hz～20KHz范围内调整。-Function Generator is a scientific research and production
低频数字式相位测量仪
- 低频数字式相位测量仪； 此系统由相位测量仪、数字式移相信号发生器和移相网络三部分组成。为使系统更加稳定，使系统整体精度得以保障，本电路两块T89C52为核心控制器件分别控制相位测量、数字式移相信号发生,在数字式移相信号发生部分采用了锁相技术、CPLD等技术, 使输出波形精度大大提高，并可对频率自动校验，提高频率稳定性。-low-frequency digital phase-measuring instrument; This system consists of phase-measuri
彩灯控制器
- 单片机在循环显示数字列的同时，采用查询方式控制数字的显示时间和音乐播放的开关。音乐低频信号由定时器采用中断方式产生。-SCM in circulation figures out show at the same time, using figures for the control of time - and the music player switching. Music low-frequency signals used by the timer interrupt way.
RandomNumberGenerators
- Random Number Generators（随机数生成）包括gaussian random number generator、uniform random number generator、low-frequency hold generator、1/f noise generator等5种随机信号生成的c源代码-Random Number Generators (Random Number Generation), including Gaussian random number gen
counter_8051
- 利用AT89C51搭配74C926來實現一個低頻的頻率記數器(範圍為1Hz~300KHz)-74C926 AT89C51 mix to achieve a low-frequency frequency Register (range of 1Hz - 300kHz)
frequency
- Based on the frequency of single-chip design, can measure the number of low-frequency signal
frequency
- 一种等精度的频率计，同时适合高频和低频，误差小。-A precision frequency meter, etc. At the same time, suitable high-frequency and low frequency, the error small.
svpwm
- 上海交通大学电气工程系DSP实践2009年示例程序，基于带低频补偿的恒压频比SVPWM开环电机调速系统程序，使用可调电阻与液晶作为人机界面。该程序在IGBT逆变桥上测试通过。开发使用MPLAB 8.30，调试使用I.C.E.-Electrical Engineering Department of Shanghai Jiaotong University in 2009 the practice of DSP sample procedures, with low-frequency-based
kekongfangda
- 用单片机AT89s52对可编程滤波器芯片MAX262 进行程序控制，可以同时对两路输入信号进行二阶低通、高通、带通、带阻以及全通滤波处理，滤波器的中心频率在15kHz～50kHz 频率范围内实现64 级程控调节，其Q 值在0.5～64 范围实现128 级程控调节。-In a simple, accurate, reliable, stable and universal principles, use of a hierarchical design to match the idea of i
frequency-measured-under-mega16
- AVR mega16下的频率采集，高低频自动切换；所能测准的最高频率为70KHz-frequency sampling under AVR mega16,auto switching between high and low frequency the highest frequency which can be measured is 70KHz.
frequency-measuring
- 通过AD采样测量频率，输出到数码管显示，测量低频效果并不好-Measured by AD sampling frequency, the output to a digital display, measuring low-frequency effect is not good
low-frequency-signal-generator
- 实现基于单片机的低频信号发生器，程序完整，参考性好-MCU-based low-frequency signal generator
frequency-digital-phase-measuring-
- 低频数字式相位测量仪，数码管显示相位差，精度为0.1-Low frequency digital phase measuring instrument, digital pipe display phase difference
Low-frequency-AC-signal-measurement
- 低频交流信号测量系统 采用12864屏幕实时显示交流信号波形，并测量Vpp和频率-Low frequency AC signal measurement system 12864 screen real-time display of AC signal waveform, and measuring the Vpp and frequency
Low-Frequecy-signal-measurement
- 这是一个电子设计大赛初赛的一个作品源代码。芯片为单片机AT89C52，C语言。作用是测试输入的低频交流信号，可以测量1Hz~60KHz的范围，最大为5V的峰峰值方波信号。硬件中，通道是用模拟开关芯片选择不同的放大倍数。-This is the source code for a work of an electronic design contest preliminaries. Chip microcontroller the AT89C52, C language. Role of the
PWM-P-a-low-frequency-sine-signal
- 本实验要求使用PIC16F877A的CCP1模块的PWM功能和一个一阶RC低通滤波器产生一个5Hz的正弦信号。要求用示波器观察产生正弦信号的频率为准确的5Hz,且没有明显的失真。没有条件的读者可以通过观测直接和CCP1输出引脚相连的LED的闪烁频率来确定产生正弦信号的频率。-PWM function of the requirements of the experimental use PIC16F877A CCP1 module and a first-order RC low-pass fi
Frequency-Measurement-V2.0
- 实现MSP430单片机测频，单片机需超频至12M主频，采用最常用的低频测周，高频计数方法，频率测量范围达到0.1Hz-20MHz,理论上还可以测更高频率，但是手头只有20M的信号发生器-To achieve the MSP430 MCU frequency measurement the microcontroller be overclocked to 12M clocked, the most commonly used low-frequency measurements weeks, h
Precision-frequency-meter
- 本系统基于C8051F020实现等精度的频率测量，利用该单片机灵活的控制功能及速 度优势，大大提高了性能和测量精度。以往的测频都是采用高频段直接计数、低频段间接测周 的方法，其测量精度往往会随着被测频率的改变而受到影响。为了克服测频中高低频段测量精 度不等的缺陷，采用双计数器设计，实现等精度的频率测量。等精度的测量方法不但具有较高 的测量精度，而且在整个测频区域内保持恒定的测量精度。-The system is based on C8051F020 achieve equal p
Frequency
- 先用计数法测频率，判断大小，高频直接显示，低频就用测周法，测出后显示-First, using the counting method to measure the frequency, judge the size, high-frequency direct display, low frequency on the measurement of the week, measured after the show
low--pass
- 这个电路模块是一个低通滤波器模块，可以过滤掉高频信息，保留低频信息，电路很好的实现功能。-The circuit module is a low pass filter module, which can filter out the high frequency information and keep the low frequency information.