Hey guys, I'm working on a pretty crazy project at the moment. Basically, it's going to be a HUGE RGB, individual segment colour controlled digital wall clock, spanning over 4 metres in length.
I have been messing around with the circuit design, and I think I have the highside switching sorted, but kinda wanted to confirm that the resistor/zener combo is a viable way of controlling P-chan MOSFETs from a uC output in this situation.
Please excuse the messy diagram around the LED "display".
The zeners are 7-8V, probably 8.2V.
Along the top are the 7 segment controlling high side switchers.
LED's are missing resistors because I will be using LED strip, which already has inbuilt current limiting resistors.