No stupid question.
Its simple to invert the signal.
Without looking at the circuit again, I would:
AC couple (i.e. through a capacitor) to a voltage divider at around mid powersupply.
Either invert the signal or invert the peak and hold.
No stupid question.
Its simple to invert the signal.
Without looking at the circuit again, I would:
AC couple (i.e. through a capacitor) to a voltage divider at around mid powersupply.
Either invert the signal or invert the peak and hold.