3 ms·
And if they are pulled down to a low reference voltage independent from the ground? (thx, I didn't knwow about required independence from the ground)
by henearkr 3y ago
And if they are pulled down to a low reference voltage independent from the ground?
(thx, I didn't knwow about required independence from the ground)
- colanderman 3y agoThe input to an optoisolator (i.e., an LED) is two pins, with no reference to ground. So either current is flowing through the opto's input, or not. Because they're not referenced to ground (or any voltage), the voltage on either pin relative to ground is irrelevant. (In this way, two connected MIDI devices can have different ideas of what signal ground is without causing issues.)