P Potaeto New Member Mar 30, 2010 #1 Does one input of a comparator always have to be a DC voltage? Can I use AC voltages for both inputs?
Does one input of a comparator always have to be a DC voltage? Can I use AC voltages for both inputs?
Nigel Goodwin Super Moderator Most Helpful Member Mar 30, 2010 #2 You could, but what would be the point?, it would produce fairly random outputs - regardless of the inputs, it's comparing two DC voltages only. Last edited: Mar 30, 2010
You could, but what would be the point?, it would produce fairly random outputs - regardless of the inputs, it's comparing two DC voltages only.
Hero999 Banned Mar 30, 2010 #3 It depends on what you're doing, for example two create PWM with a comparator, the reference is an AC triangle wave and the input is a DC voltage or lower frequency AC signal.
It depends on what you're doing, for example two create PWM with a comparator, the reference is an AC triangle wave and the input is a DC voltage or lower frequency AC signal.