Wireless power method? 5vdc

T Chap

Have you guys seen a device to power a prop PCB with 5vdc wirelessly/non contact? I want to mount the fixed part of the power transfer to a panel and have it’s “receiver” part mount on a sliding system. When the Receiver slides under the fixed part it can provide power wirelessly to the prop board. I assume that this is two coils with one sending a frequency and the other receiving the magnetic source and outputting an AC voltage that can then be rectified.

Seairth

Qi chargers are quite common now. You can even get DIY hardware to do your own. Something like

Transmitter: https://www.adafruit.com/product/2162
Receiver: https://www.adafruit.com/product/1901

erco

See also

VonSzarvas

@erco

I believe T Chap's acronym was referring "volts direct current", not "very dangerous cage"

:-)

Tubular

Get yourself one of these to try
https://www.mouser.com/search/refine.aspx?Keyword=426-DFR0362

They seem to have a bit better range and tolerate off-alignment better than the adafruit ones. These are the best ones I've found so far

Seairth

Tubular wrote: »

Get yourself one of these to try
https://www.mouser.com/search/refine.aspx?Keyword=426-DFR0362

They seem to have a bit better range and tolerate off-alignment better than the adafruit ones. These are the best ones I've found so far

Wow! Plug-and-play transmitter and receiver for $7? Nice! And It looks like they put out 1A instead of 500mA.

T Chap

Thanks for the links. The one thing that a lot of those types don't mention is the maximum air gap which is something to consider. I will order that mouser version for a starting test rig.

T Chap

Deleted

Phil Pilgrim (PhiPi)

I wonder why they bother to use coiled wire. It seems like it would be cheaper just to print the coils on the same PCB that holds the control circuitry.

-Phil