Alt-BEAM Archive

Message #09655



To: beam@sgiblab.sgi.com
From: "Thomas Pilgaard" ascii@hum.auc.dk
Date: Mon, 31 Jan 2000 21:25:54 +0100
Subject: [alt-beam] Re: Vairable Threshold SE question


Um - maybe a dumb question, would you happen to have a schema on that Solar
Charge Pump and perhaps one that integrates it into the PSH

Thanks in advance.

Thomas

> Hi Brad....
>
> I know there has been a fair bit of trouble on te PSH group
> getting the solar
> part of the PS head circuit to work. Solution (even though my
> head still isn't
> working properly) is to use a small NiMh battery and a solar
> charge pump. That
> way when the head is locked on and not drawing much power it can
> charge the
> battery. When it needs to move it can draw its power from the
> battery, which
> it sounds like you would have no problem with, but as a bonus it can move
> around for longer periods without having to stop and charge a cap.
>
> I am using a 5V 500mA hours NiMh battery from a radio phone. Very
> small and
> could power the head for 8 hours of continous movement if need be.
>
> Elmo
>
>
>

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