Subject:
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Re: Higher voltage for HB battery
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Sun, 9 Jan 2000 21:17:27 GMT
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Original-From:
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Chuck McManis <cmcmanis@AVOIDSPAMmcmanis.com>
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Viewed:
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953 times
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I find that the ideal solution to this situation is to build a power system
for the robot. Maxim, Linear Technology, and National each make very easy
to use switching regulators that can provide highly efficient DC to DC
conversion. Building a circuit out of the National "simple switcher" parts
is pretty each. Then build on 5V supply for the HB, one 9V for the Lego
motors, and run the camera of the 12V of the battery.
--Chuck
At 11:07 AM 1/9/00 -0800, Will Bain wrote:
> I would like to know whether the HB can be used with a 12 V (ten AA
> cell) NiCd battery instead of the standard 9.6 V (eight AA cell) NiCd
> battery.
>
> Specifically,
> (1) Would the HB be damaged by the higher voltage,
> (2) Would the HB function properly (e.g., could I still use Lego gear
> motors), and
> (3) Could I use a 14 or 15 V, 500 mA "wall wart" instead of the
> standard 12 V, 500 mA adapter to charge the 12 V battery using the HB's
> built-in charging circuitry (the two trickle charge modes and the ZAP
> mode).
>
> The reason that I would like to do this is that I have a video camera
> and transmitter that requires 12 V, and I would like to avoid using
> separate batteries (and especially separate charging circuits) for the
> HB and the camera.
>
> If anyone knows the answers, I would be grateful to hear about it.
> Thanks in advance!
>
> Sincerely,
> -- Will Bain
>
> =====
> Any sufficiently advanced technology
> is indistinguishable from magic.
> -- Arthur C. Clark
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Message is in Reply To:
 | | Higher voltage for HB battery
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| I would like to know whether the HB can be used with a 12 V (ten AA cell) NiCd battery instead of the standard 9.6 V (eight AA cell) NiCd battery. Specifically, (1) Would the HB be damaged by the higher voltage, (2) Would the HB function properly (...) (25 years ago, 9-Jan-00, to lugnet.robotics.handyboard)
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