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dljs
改程序适应于电力系统短路电流计算，生成节点导纳矩阵和阻抗矩阵。(Change program suitable for power system short-circuit current calculation, to generate the node admittance matrix and the impedance matrix.)
- 2014-09-27 21:37:47下载
- 积分：1
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in-vehicle-GPS-navigation-system
GPS导航系统 c语言 51单片机开发(in-vehicle GPS navigation system)
- 2013-10-10 21:21:16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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12864
点阵液晶屏的参考程序，内置菜单动能，大家可以研究一下(Dot matrix LCD screen reference program, built-in menu kinetic energy, we can look)
- 2011-11-11 18:53:23下载
- 积分：1
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Text1
用单片机产生频率，占空比可调的方波，这是C语言的原代码。(Produced with single-chip frequency, variable duty cycle square wave, which is the C language source code.)
- 2011-09-17 10:53:43下载
- 积分：1
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diandaozengliangfa
基于C语言的电导增量法，可以改变步长，使系统快速精确找到最大功率，很好！(The incremental conductance method, based on the C language can change step length, the system quickly and accurately find the maximum power, very good!)
- 2015-07-10 20:22:04下载
- 积分：1
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Mouse_Drive
电脑鼠底层驱动，能实现曲线转弯，速度快，很平稳(Computer mouse driver, can realize curve curve, speed, very smooth
)
- 2012-02-26 21:53:33下载
- 积分：1
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blcd-220V
本方案是基于富士通高可靠性单片机开发的锂电池电动螺丝刀，采用直流无刷电机作为核心，配合方波驱动以及闭环控制技术，实现电动工具的可靠运行。
技术参数
1）采用日本富士通MCU，性能稳定，抗干扰强，高可靠性；
2）直流18V输入（可兼容不同锂电池10V—36V）；
3）三相霍尔直流无刷电机驱动，转速高达25000转/分；
4）采用德国英飞凌高性能MOS/IGBT，驱动功率高达800W；
5）高亮LED照明，工作时点亮，不工作时自动熄灭；
6）采用智能控制技术实现待机（不工作时）功耗为 0 消耗；
7）通过软件实现软启动，启动时间可调整，瞬间（1S）达最高速；
8）具有过流保护、堵转保护、过压欠压保护；
9）带速度设置按键、正反转按键、调速开关；
(The program is based on the Fujitsu MCU development of high reliability lithium battery electric screwdriver, brushless DC motor as the core, with the square wave drive and closed-loop control technology, power tools for reliable operation.)
- 2013-10-15 15:03:30下载
- 积分：1
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MPC837xE-RDB_init.cfg.tar
which will use for MPC837XERDB when programming
- 2011-11-01 21:54:43下载
- 积分：1
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XMT_USB_VC6
哈尔滨芯明天科技XE517系列压电陶瓷控制器配套上位机软件的开发例程，这个版本是VC6开发。发布时需要拷贝debug目录中的头文件和动态库文件到*.exe文件目录中。(Harbin XMT XE517 series of piezoelectric ceramic controller supporting PC software development routines, this version is VC6 development. When you need to copy the directory publishing debug header files and dynamic library files to*. Exe file directory.)
- 2021-01-04 09:18:55下载
- 积分：1
