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 Robotics / Handy Board / 6728
6727  |  6729
Subject: 
Re: VOLTAGE AND CURRENT
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Wed, 8 Sep 1999 22:05:12 GMT
Original-From: 
Robert McCartney <robert@engr.uconn(spamless).edu>
Viewed: 
677 times
  
the car will almost undoubtedly fry the motor driver on the HB, and having
it on the same power will probably generate enough noise to occasionally
reset the HB.  best bet would be to have the car use its own power and
h-bridges, with the control signals isolated using optoisolators.

r.


On Wed, 8 Sep 1999, Paul DaCosta wrote:

SIMPLE QUESTION TO ANYBODY:

I'M PLANNING ON INTERFACING  THE HANDY BOARD WITH AN R/C CAR. NOW THE
MOTORS OF THE R/C CAR DRAW 1 AMP CONTINUOUSLY, AND A PEAK CURRENT OF 3.5
AMPS. THE R/C CAR USES A 9.6 VOLT BATTERY.

NOW , ACCORDING TO HANDYBOARD SPECIFICATIONS, IT ALSO HAS A 9.6 VOLT
INTERNAL BATTERY, AND MOTOR DRIVERS DON'T EXCEED 1 AMP, RIGHT?

SO I REALLY DON'T HAVE TO GET ANY H BRIDGES, DO I?

NOW, WOULD IT BE ON THE SAFE SIDE TO USE THEM?
WOULDN'T BE BETTER ANYWAY IF I HAD A SEPERATE POWER SOURCE FOR THE
MOTORS SO IT WOULDN'T DRAIN THE HANDYBOARD'S BATTERY?

THIS IS A SIMPLE QUESTION, I JUST WANNA BE ON THE SAFE SIDE

PAUL DACOSTA




Message is in Reply To:
  VOLTAGE AND CURRENT
 
SIMPLE QUESTION TO ANYBODY: I'M PLANNING ON INTERFACING THE HANDY BOARD WITH AN R/C CAR. NOW THE MOTORS OF THE R/C CAR DRAW 1 AMP CONTINUOUSLY, AND A PEAK CURRENT OF 3.5 AMPS. THE R/C CAR USES A 9.6 VOLT BATTERY. NOW , ACCORDING TO HANDYBOARD (...) (25 years ago, 8-Sep-99, to lugnet.robotics.handyboard)

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