Recent content by Logio

Hi, I'm having difficulty getting my head round the concept of excitons, which have recently been introduced into my Uni course. Previously, I've always understand the operation of LEDs as follows: Under forward bias, electron and holes are injected and recombine at the p-n junction...

Thanks for that - it makes sense. If I have a phase margin of say X degrees, then X degrees of phase lag can be added before instability. How can I process this to calculate the amount of extra time delay the system could have before instability? Thanks

Hi, Just wondering if anyone could give me a few pointers in the right direction for this... thanks! Homework Statement Incredibly long problem statement so I'll summarise and ask more about the concept: I have a Plant and Controller set up in the form of a usual control system. The...