Re: Multiple R/C servo control
- From: "Padu" <padu@xxxxxxxxxxxx>
- Date: Sat, 24 Sep 2005 16:24:08 -0700
"Tim Auton"
>
> The regulator tries to maintain 5.0V between its ground pin and its
> output pin - it has no other external references (it does have an
> internal reference, so it can keep the ground and output pins 5.0V
> apart, but this reference is unchanged by the external diode). The
> ground pin of the regulator is 0.7V above circuit ground thanks to the
> diode, and the output pin is 5.0V above the ground pin, so the output
> pin is 5.7V above circuit ground.
>
>
> Tim
Nice explanation, thanks a lot. Now, at the risk of start being annoying,
there's one final thing that is still unclear in my mind. I see that if I
install a diode forward biased (is it the right way to say?) on a 5V line,
there will be a small voltage drop on the other side of the diode. So why
connecting it to the GND lead makes the voltage to actually raise?
Cheers
Padu
.
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