Joe said:
Too many people have given 1/2 vast explanations that have hindered my
understanding in the past, so excuse my reaction to this latest
"explanation".
Hello again, Joe.
It just occurred to me that you might
have thought my earlier post about
moving the capacitor plates was one of
the "1/2 vast" explanations. May I explain?
There are really only two ways to
increase the voltage on a capacitor:
increase the charge or decrease the
capacitance. In the constant-current
approach you commented on, the charge is
increased when the button is pushed.
In my earlier post, which is more
humorous than wrong, I imagined that the
capacitor plates (or whatever) are
mechanically linked, say by a ratchet,
to the switch handle. Thus, every time
the switch is activated, the capacitance
is (first) reduced by a set amount.
Every time the capacitance is halved,
the voltage doubles. This is, of course,
operated with a constant-voltage source.
The physics here is elementary, but
technically, this stretches the rules
set by the OP because after the first
switch activation to place a charge on
the capacitor, subsequent activations of
the switch lever require no further
connections to the constant voltage DC
source. This could be handled
mechanically, of course, in the switch
design. The capacitor voltage would not
change if it were connected to the
source each time the button is pushed.
Does that help any?
Chuck