From: Neil <picdude3@narwani.org>
To: Microcontroller discussion list - Public. <piclist@mit.edu>
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Date: Mon, 3 Feb 2020 19:57:58 -0800
Subject: Re: [EE] Power transmission
Thread-Topic: [EE] Power transmission
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On 2/3/2020 8:31 PM, RussellMc wrote:
> How much power?
Not sure yet.  I'm more tinkering at this point.  But let's say ~ 1 watt=20
for now.

> What distance between TX:RX?
I have a very small gap directly behind the 1/2" MDF panel, but if I can=20
place the transmitter on the back of the wall, I'd have a LOT more space=20
for the transmission coil.  That would be 6" or more away.

> What limitations on dimensions of send and receive units?
Receive would have to be considerably smaller, but I can have several=20
(maybe 10-20) receivers.

> Any cost factors?
Cost is always a factor -- I'd prefer not to spend a grand on this :)

> Why is a hole unacceptable?
This is an idea for a artwork that will change periodically.

> What are the materials used at and near the power transmission site? (eg
> are the wall panels made of mumetal?, ...? )
Walls are drywall (open space in-between), though one may even be=20
plaster on cinder block.

> Any other relevant stuff?
I'm really just tinkering with the idea right now and thought I'd learn=20
about it.  I'm very clueless about what frequencies would be better=20
(distance-wise).

Cheers,
-Neil.


>
>
>
>             Russell
>
>
> On Tue, 4 Feb 2020 at 11:43, Neil <picdude3@narwani.org> wrote:
>
>> I'm tinkering with power transmission for getting power from behind a
>> wall panel to in front.  For now I'm just experimenting with the idea,
>> but I can't find much info on the relationship between coil diameter,
>> wire diameter, number of turns, frequency, and distance.
>> Anyone here know anything about this?
>>
>> Cheers,
>> -Neil.
>>
>>
>> --
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