[sdiy] Minimum parts count switch de-bouncer.

[Harry Bissell Jr]

<brunette mode on>

uhhh... i beg to differ.

Agree... the peak current is a function of
the applied voltage and the total resistance of the
switch, wires, etc.

but the larger cap ~is~ likely to support higher peak
currents because of the internal resistance... and it
will for sure pass a lot more total energy.

A small cap (I usually think of .01uF or less as
small) can usually be run without a series resistor...
larger cap values need careful consideration.

Anyway... the series resistor BELONGS in the circuit,
you delete it if you think you can get away with it.

</bmo>

H^) harry



--- René Schmitz <uzs159 at uni-bonn.de> wrote:

> Hi Harry,
> 
> Harry Bissell Jr wrote:
> > Bigger the cap value, the higher the current.
> 
> I don't think so.
> The initial (peak) current depends on the voltage
> across the
> cap, and the total resistance of the internal cap
> resistance, wireing and contact resistance.
> The larger the cap the longer does current flow. So
> the
> total charge that has to go through the contact is
> larger.
> 
> Cheers,
>   René
> 
> -- 
> uzs159 at uni-bonn.de
> http://www.uni-bonn.de/~uzs159
> 
> 
>