Re: Kids Power Wheels Motor questions
From: John Woodgate (jmw_at_jmwa.demon.contraspam.yuk)
Date: 01/31/05
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Date: Mon, 31 Jan 2005 19:52:20 +0000
I read in sci.electronics.design that Tom <ace@mypad.com> wrote (in
<1107198599.754388.282110@c13g2000cwb.googlegroups.com>) about 'Kids
Power Wheels Motor questions', on Mon, 31 Jan 2005:
> The original battery was 12V, and I assume the motor
>burnt up because of the larger current capability, or the increased duty
>cycle (allowing him to go longer before a recharge and cool down).
>
Well, maybe, but it could well have been a marginally dud motor.
>I wanted to know if I should try and place a current limiting circuit in
>front of the motors to keep this from happening again, or possibly a
>temperature shutdown on the motor? Any ideas?
Temperature shut-down is the best solution. You don't know what current
is too high but you can make a better guess at what temperature is too
high.
-- Regards, John Woodgate, OOO - Own Opinions Only. The good news is that nothing is compulsory. The bad news is that everything is prohibited. http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk
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