Re: How to provide power to a spinning circuit ?
robin.pain_at_tesco.net
Date: 07/22/04
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Date: 22 Jul 2004 00:23:26 -0700
"Rodo" <dsp1024@yahoo.com> wrote in message news:<WtALc.13795$Iz3.9732@nwrddc01.gnilink.net>...
> Hi all...
>
> I need to make a circuit that needs to spin on the shaft of a small dc
> brushless motor. I thought I could use a permanent magnet mounted on the
> base of the shaft of the motor (not moving) and some coils that will be
> spinning on the pcb. I don't know if this will work or provide enough power
> (need 5mA) to the spinning pcb . Any better ways ?
>
> BTW I can't seem to find a dc brushless motor manufacturer. Can you suggest
> any ?
>
> Thanks
Have a high intensity LED, fixed to the chassis, shine on a "solar
cell" fixed to the rotating circuit board.
A small-light-powered-calculator I pulled apart used an LED as a shunt
regulator so evidently they can deliver mA no probs.
Robin
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