CAD画的信号发生器，有PCB、原理图等，对学习和参考有帮助哦！-CAD drawing of the signal generator, PCB, schematic, learning and reference Oh!

通过protel99se绘制的稳压电源电气原理图包含pcb布线。-Regulated power supply electrical through protel99se drawn schematic contains pcb wiring.

ORCAD SIM900 library schematic and foot print for allegro. Use full to add into the libraries of Orcad 16.5 and higher and design schematics as well as PCB footprint

TinyCAD 是一个易于使用的程序，能够绘制电路图俗称原理图。能够输出网络表用于PCB布线。VS2010下测试可以编译。编译时根据BuildIDTemplate.h文件创建BuildID.h文件。VS2010不使用预先生成事件。-TinyCAD is an easy to use program, can draw circuit diagram or schematic diagram. Can output table for PCB routing network. You can co