AW: multiple power supplies in a modular

Rene Schmitz uzs159 at uni-bonn.de
Thu May 30 12:44:36 CEST 1996


At 11:00 04.02.1998 +0100, you wrote:
>	>One approach I've used (er - copied... :) is to have a standard
>	>power supply of, say, +/-15V or 18V and the first thing on each
>	>board is a pair of 100 ohm resistors and then 100uF caps to
>	>ground. Works for me.
>	>
>	>My two cents worth... <shrug>
>
>This is very useful when it's AC dirt you want to get rid of (noise,
>hum,
>spikes). But it won't help you if your circuit needs the supply voltage
>as a reference voltage.

But it may help to keep the supply clean(er), since the spikes caused by 
opamp schmitt triggers and the like cannot couple into the rest of the circuit.
The greater current draw when transitioning comes from the cap, and not the
supply.

Bye



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