用一个电位器实现对直流电机正、反转,调速,启动,停止的控制
哥哥已调通一个LM324加四个电阻的步进通过8051的P1口控制.
要不要?
你说的电路我也能做出来. 但你要请我
能不能把资料发一份给我,谢谢!
The board is for a 3driven.
I only have a demo board for the time being. In the board,
There is a RS485 port to receive from/report to the PC who
Controls a NC machine farm. Each NC machine is controlled
By a separate 8051 MCU. 8051 executes the NC program.
The design had been proven right and economical.
The PC converts AutoCAD DXF files into NC programs. And sends
To corresponding NC machines.
线绕电阻是感性的,高频时要注意磁耦合啦.
[求助]