PWM motor controller

[rauscher at icst.com]

The 470uf is mentioned in the writeup, it is not on the schematic. It has to do
with filtering on the pump motor itself. It's purpose is to provide a local low
impedence source of power for when the motor is turned on.

Each motor is different, through experimenting, you may find that it's not
needed, to needing to be larger...

BobR.

>(snip)
>>>4. 470 uf 25V -- only electrolytic ???
>>
>>Electrolytic is fine, and cheap.
>>
(big snip)

Clarence wrote:
>  I am lost on this one!  The only 470 I can find on the schematic is a
resistor.  Where is the 470 uf >capacitor used?
>
>Clarence