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 Robotics / 16691
16690  |  16692
Subject: 
Re: rcx power circuit
Newsgroups: 
lugnet.robotics
Date: 
Fri, 7 Dec 2001 15:15:04 GMT
Viewed: 
618 times
  
Rob Syvertsen wrote:

On Thu, 2001-12-06 at 12:15, Mathias Uhr wrote:
<snip>
  * instead, there's a big cap (1000uF) and a ferrite "ring"
    on the battery input (probably for some kind of filtering
    if someone still connects an external power source).
This is more likely to act as a buffer to prevent the voltage from
sagging on the CPU when you're running the motors.  This is always a
pronlem when motors and CPU are run off a common source and is overcome
through filtering the power supply.

It's the delay you get when changing batteries so you don't lose your
firmware...
(the 1000uF Cap) the ring should be for filtering power.

Dean
--
Dean Husby
LUGNET Member #320
TFM's LEGO Workshop - http://www.akasa.bc.ca/tfm
The Vancouver LEGO Club - http://www.akasa.bc.ca/vlc/



Message is in Reply To:
  Re: rcx power circuit
 
On Thu, 2001-12-06 at 12:15, Mathias Uhr wrote: <snip> (...) This is more likely to act as a buffer to prevent the voltage from sagging on the CPU when you're running the motors. This is always a pronlem when motors and CPU are run off a common (...) (23 years ago, 7-Dec-01, to lugnet.robotics)

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