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Thanks for the patience, trying to learn how to do this better!
Duty cycle accuracy is what's important, so yeah if the wave is just shifted in time but the cycle is preserved that's fine! To be honest, I don't have an accuracy target...just "as good as possible". This isn't being designed to a...
Well they are related. In the circuit I posted, if the PMOS is not able to turn on quickly enough the the duty cycle of the outputted waveform will change (since there will be a time delay that's significant when comparing the input PWM from the MCU to what comes out of this circuit).
Yeah -...
Yeah, initially those were supposed to be separate grounds but its TBD at the moment. If they end up the same as in the schematic, then there's no point.
Instead of going full driver IC, thoughts on the following simpler circuit? NMOS doesn't have to be the AOD4184a since there isn't a need for...
I'm taking a 3.3V microcontroller output (PWM14L), and using a common source single stage amp to drive the 6n137 optocoupler using 5V. Ignore the fact that things get inverted since I can account for that in code.
I want to be able to drive a load with a few possible configs:
5V, < 1A
12V...
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