Recent content by Hackhol

Thanks I will check it ...but we haven't been about it. Our assignment was that's we should design a project relating to control system and write the mathematical model of the project. And design the control system where we will derive the transfer function of the entire system. Which will use...

Yes. . my main problem is how I will get the equation of the traffic light and the transfer function that will covert the input DC signal to traffic light signal

The ac signal is converted to DC signal which is connected to a capacitor to filter the DC signal. The filter DC signal is step down for 12volt to 5 volt using a voltage regulator. The regulated DC signal is connected to a crystal oscillator that converts the DC signal to a square wave signal...

Thanks for the warm welcome I Have taken heed to ur advice But it doesn't explain it well And there are no calculation problem to solve.

Summary: Please does anyone has a lecture note dat explain solid state electronic I need a lecture note or a textbook dat explain solid state electronic especially band gap Crystal growth Diffusion of semiconductor Fermini level

:smile: I am Samuel😀 studying electronic engineering