I was running the following LTSpice simulation to see if a capacitor would divide a DC signal,
this results in the following
As you can see, it works fine and obeys the cap divider formula of C1/C1+C2. Now, for this to work, I had to change the simulation settings so that "all external DC sources start at 0V".
So essentially, I had made an AC signal out of it hence why this worked. But let's say I changed the 1.8V signal to a 3V signal, surely the capacitive divider will still work but it sees it as an AC change.
So my question is, why do people say that a capacitive divider doesn't work for DC? Can't you simply use a switch or something so that you still use a DC voltage source, it's just the capacitors see it as an AC change?