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5V is quite enough to drive the low side gates, actually, and in my case the 12V supply will not exceed the 20V max for Vgs on my pmos.
I have seen no shoot through on a scope and the circuit works nicely.
Thank you all those who took the time to reply !
Brad your circuit is similar, it looks like I have stumbled onto the known concept of autobiasing. Easypeasy I am not clear what you mean by shoot through, I blv. I need only keep both mcu lines off for some short time before turning any one on to prevent any transition issues.
Extra credit...
Thkx for your reply.
My starting point was use of another transistor, which I had hoped to avoid with e.g. a diode or resistor network in some clever configuration.
This may be impossible considering that I am looking for a ckt that drops 20V at 0A and drops ~0V at e.g. 1mA coming from the...
For implementing an hbridge, In the past I've connected an arduino to mosfets as in the fig.
One mostet is a lowside switch and the other pmos is controlled by another nmos allowing the arduino
to run it from 0-5V tho the power supply may be 20V for instance. (only one side of the hbridge is...
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