Additional Coils

Question

I may be missing the point here, but I need input. Lots of it!

I got an email from element14 regarding the supply of addional coils. Without the management IC or module? What am I supposed to do with them?

Additionally I want to ask how and if a single coil can be used like in the case of a phone charger?

Thanks in advance.

mcb1 · Answer

I think the idea is to use them instead of the existing coils. Some of the entrants are using hardware designs that preclude the demo kit coils. There will be some change of the characteristics, and Simon did a posting linking to the datasheet for each of the other coils some time ago in Wireless Power. You may have read Hendriks very excellent post and his table of distance and displacement. Wer misst, misst Mist - or measuring the performance of the wireless demo kit or the english version http://blog.hendriklipka.de/archives/2014/03/wireless_power_measuring_qi.html You have also been granted a voucher for additional purchases, so you could purchase IC's and parts if you wanted to make the full system. Sharing the pcb design (since we all have Eagle) would save some of the others, and provide a good start for many others. I haven't quite figured out how we order the coil/coils and Christian is on holiday so I am not asking him. Cheers Mark

vsluiter · Answer

If you design your own receiver hardware or want to put the coil further away from the electronics without demolishing the demo circuit, you'll need additional coils.

You can order these at Farnell, or contact your local Wuerth distributor whether they're willing to support you if you build your own circuit.

I participtated in the previous Wireless Charging Roadtest Challenge, and equiped several devices with a receiver circuit (LEGO train, robot, LEGO battery pack, LED circuit), where each of course needed its own charging coil...

Victor

Additional Coils

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