Recently I had to build a h-bridge driver for my project, wireless power transmission. I learnt that I needed to have dead-time in my PWM signal given to IR2110, which doesn't have any dead-time control function. As my model only requires below 200kHZ, I had to code the arduino uno which I used to generate the pwm signal, to have dead-time. My brain got stuck in a question, what is the difference between the generic mosfets and the mosfets/transistors used inside the processor? As modern CPU clock is nearly 5GHz while a normal CPU can have a clock of around 3Ghz. So how does they do it?
How do they reduce the turn-off delay in CPU? How do the mosfets inside a CPU switches so fast while a generic mosfet like IRFZ44N have a turn off delay time of 44ns according to the datasheet?