test

matrix converter-it s an ac to ac converter with unrestriction on frequency,it got the pure sinusoidal and i/p and o/p waveforms

AXIS开发中的系统日志，记录了webserver的调用情况，是java写的，蛮好用的。。(AXIS development system log, recording the call of the webserver, is written in java, just fine with. .very good。welcome to download。。。)

一个详细的程控直流、交流电源资料，详细介绍了军用高品质电源的设计方案(A detailed program-controlled DC, AC power supply information, details of the military power of high-quality design)

说明：  绘制发动机map图，教你如何绘制发动机map图，快速掌握，提升绩效(Draw engine map from scratch until solution)

介绍了交流调速及其相关技术的发展现状和发展趋势，以及交流调速系统的主要控制策略。选用工业变频器用异步电机作为研究对象，利用坐标变换理论，分析了异步电机在三相静止坐标系、两相静止与旋转坐标下的电机基本数学模型及其矢量控制原理。(The present situation and development trend of AC speed control and its related technology are introduced, and the main control strategies of AC speed control system are introduced. The basic mathematical model of the motor and its vector control principle are analyzed by using the coordinate transformation theory, which is based on the three-phase stationary coordinate system, two-phase stationary and rotating coordinates.)

这是我设计自动化的系统的原理图及PCB,里面包含电机、电磁阀、光耦模块，继电器，传感器、单片机系统(This is my design automation system schematics and PCB, which contains the motor, solenoid valve, optocoupler module, relays, sensors, microcontroller system)

Cadence Allegro16.5详细安装步骤及破解文件，里面包括pubkey1.30修正破解文件和破解方法。(Cadence Allegro16.5 detailed installation steps and crack file, which includes files and crack crack pubkey1.30 correction methods.)

mapxtreme for java draw rangle

oracle 11g数据库安装图解说明，非常实用！！(oracle 11g install example)

LoadRunner 11.0安装详细手册(LoadRunner 11.0 Installation detailed manual)