I don't know your exact setup, but I'd put a transistor after the PIC and use a pull-down resistor. If the PIC fries, transistor goes off. If PIC fails ON, not much you can do besides safety features you mentionned.
Robert
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Re: Driving LED's with PWM
I don't know your exact setup, but I'd put a transistor after the PIC and use a pull-down resistor. If the PIC fries, transistor goes off. If PIC fails ON, not much you can do besides safety features you mentionned.
Robert
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