Re: PWM LED Driver DIY - looking for comments and criticism
if the mosfet is on the ground-side then the gate only needs to swing from ground to it's freshhold,
if it's on the positive rail you will need to bias the gate with a pullup resistor to the positive voltage and hope it doesnt fuck the mcu.
thats why most switching circuits switch the negative side
if the mosfet is on the ground-side then the gate only needs to swing from ground to it's freshhold,
if it's on the positive rail you will need to bias the gate with a pullup resistor to the positive voltage and hope it doesnt fuck the mcu.
thats why most switching circuits switch the negative side
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