What are the key features or rather benefits/downsides of these discrete switching circuits in comparison:
- Low-side NMOS
- High-side NMOS
- Low-side PMOS
- High-side PMOS
- Boot-strap NMOS circuit
The basic functionality of those circuits is rather the same. #3 doesn't make that much sense from my understanding, as the gate-source voltage must be greater than the threshold voltage and the load voltage to close the DS-path in the NMOS. Vice-versa for the #4? For #5 only possible, if th load can be PWM controlled.
Besides that, what are the other basic benefits/downsides, i.e switching speed (rise and fall time), safety ("high-side always grounded"), cost and resistance (NMOS vs PMOS), etc.
It would be great to have an inside on to why sometimes circuits are built/preferred in one way or the other.