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51duolucaiji
说明： 基于51单片机的多路数据采集系统
设置3个功能键：1） 8路数据采集功能
2） 计数功能
3） 秒表功能(51 Microcontroller based multi-channel data acquisition system set up three function keys: 1) 8 channel data acquisition function 2) counting function 3) Stopwatch function)
- 2011-03-25 12:51:37下载
- 积分：1
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cheng
滤波器广泛应用于数字信号处理、通信、自动控制领域,但设计可变宽频带有源滤波器则比较困难。利用单片机控制参数可编程的双二阶通用开关电容有源滤波器,精确设置有源滤波器的中心频率f，品质因数Q及有源滤波器的工作方式。本系统主要分为两个部分:即程控滤波器和程控放大器。程控放大器电压增益为40dB，通过单片机控制DA进行分压，可精确实现要求的10dB步进，误差小于0.5 ，通带为100Hz-500KHz，输入电压峰－峰值范围为10mV，在输入范围内无明显失真。由MAX264为核心的滤波器，可设置为高通、低通滤波器。通过单片机直接给出控制频率，使-3dB截止频率在1KHz-20KHz内可调，步进1KHz，误差小于1 。整个系统以52单片机为控制核心，电路简单，性能稳定，且具有较高精度，滤波参数调节通过单片机控制，较为方便。(Filters are widely used in digital signal processing, communications, automatic control area, but the design variable wideband active filter is more difficult. Control parameters using single-chip programmable universal switched-capacitor biquad active filter, active filter accurately set the center frequency f, quality factor Q and the active filter works. The system is mainly divided into two parts: the program-controlled filters and programmable amplifiers. Programmable amplifier voltage gain of 40dB, the DA through the partial pressure of single-chip control, can accurately achieve the required 10dB step, the error is less than 0.5 , passband to 100Hz-500KHz, input voltage peak- the range of 10mV, the input range no significant distortion. By the MAX264 as the core of filter can be set to high pass, low pass filter. Given directly by the microcontroller controls the frequency, the-3dB cutoff frequency at 1KHz-20KHz adjustable, step 1KHz, error is less than 1 . The entire system for)
- 2011-07-17 16:23:27下载
- 积分：1
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单神经元PID，自适应PID算法
单神经元PID，自适应ＰＩＤ算法,可以用于PID 参数整定困难的场合.(Single neuron PID adaptive PID algorithm can be used for PID parameter tuning difficult occasions.)
- 2012-07-07 23:11:13下载
- 积分：1
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51单片机所有
中文51单片机数据手册，包括89和90系列，初学者使用(Chinese 51 singlechip Data Handbook)
- 2018-03-25 10:19:16下载
- 积分：1
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learnhongwai
智能红外遥控学习程序，基于51单片机的学习机。(Intelligent infrared remote learning program, based on 51 SCM learning machine.
)
- 2012-11-24 17:06:51下载
- 积分：1
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1602
STC89C52单片机的1602显示程序(STC89C52 SCM 1602 display program)
- 2013-12-15 15:27:36下载
- 积分：1
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通过stm32单片机生成互补pwm驱动三项桥
说明： 通过stm32单片机生成互补pwm驱动三项桥，构成逆变电路，生成三项交流电。内含源代码及protues仿真程序。(Three bridges driven by complementary PWM are generated by STM32 single chip computer, which constitute the inverting circuit and generate three alternating currents. Includes source code and PROTUS simulation program.)
- 2020-06-19 00:40:02下载
- 积分：1
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cordic_C
说明： cordic算法的C语言实现，包含了相应C语言程序，十分珍贵(cordic algorithm C language, contains the corresponding C language procedure is very valuable)
- 2020-11-06 10:49:51下载
- 积分：1
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24
说明： 用单片机实现的DS1621温度传感器，测量周边环境的温度(With MCU' s DS1621 temperature sensor to measure the temperature of the surrounding environment)
- 2011-06-17 23:48:22下载
- 积分：1
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C8051F020examples
包含了C8051的基本例程，如流水灯，IO口控制，蜂鸣器，串口通信等(C8051MCU example programs)
- 2013-09-04 11:25:58下载
- 积分：1
