Library

这是一款模拟modbus从机的程序，可以方便用户调试modbus程序，本程序完全免费。(This is a simulation of the modbus from machines, can facilitate users to debug the modbus program, this program is completely free. )

LCD12864 可以显示汉字，字符，数字，还可以显示可变的变量。(LCD12864 liquid crystal display program, can display Chinese characters, characters, numbers, you can also display variables.)

宽频放大器,有以下功能: 预置增益,增益加/减,显示输出电压有效值,自动增益 显示有效值. 增益输入及加减 自动增益没有实现(Wideband amplifier has the following functions: Preset gain, gain plus/minus, the display output voltage RMS, automatic gain display rms. AGC gain input and subtraction is not implemented)

51单片机考勤系统下位机程序，可以配合上位机软件实现考勤功能，将hex文件下载到51单片机即可使用(51 MCU control procedures can be achieved with the PC software attendance function, the hex file into the microcontroller 51 can be used)

1000以内所有的完数，比较简单，用于学习和交流(1000 all finished within few, relatively simple, for learning and communication)

msp430与PDIUSBD12的固件程序 D12驱动win2k_xpD12test.inf D12驱动win98D12TEST.SYS usb上位机测试程序usb430d12EasyD12.dll usb上位机测试程序usb430d12EasyD12.H (msp430 the PDIUSBD12 firmware D12 driver win2k_xp D12test.inf D12 driver win98 D12TEST.SYS usb host computer test program usb430d12 EasyD12.dll, usb host computer test program usb430d12 EasyD12.H, )

本书是“国际电气工程先进技术译丛”之一，该书分14章，介绍了各种大功率变频器的拓扑结构及原理、传动系统的组成，以及与此相关的各种先进控制策略。书中还同时详细地给出了多个专题的相关技术背景。可作为学术研究、产品开发等专业技术人员或产品工程师参考。介绍了大功率变频器及中压交流传动的最新发展技术，包括各种大功率变频器拓扑结构、脉冲调制方法、先进控制策略以及工业产品设计经验。包括250多个图表，对所有的主要理论和控制方法都给出了计算机仿真结果和试验波形。对实际产品设计和工业应用中各种问题，书中也进行了介绍。(This book is one of the "international electrical engineering advanced technology translations", the book chapter 14 points, this paper introduces all kinds of high-power inverter topology and principle, the components of the drive system, and the related all kinds of advanced control strategy.Is also given in detail in the book more than one project related technical background.Can be used as an academic research, product development and other professional and technical personnel, or product engineer reference.High-power inverter are introduced and the latest development of medium voltage ac drive technology, including all kinds of high power converter topology, pulse modulation methods, advanced control strategy and industrial product design experience., including more than 250 chart for all the major theories and control methods are the computer simulation results and experiment waveforms are given.For all kinds of problems in the actual product design and industrial application, th)

AT89C52单片机与VB串行通信的实现实现vb(AT89C52 microcontroller with VB serial communication to achieve vb)

PSCAD继电保护仿真模型 (PSCAD simulation examples Collection)

该程序主要用来测量信号的脉冲宽度，具有较好的稳定性和精度。(The program is mainly used for the measurement of pulse width signal,and has good stability and accuracy. )