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Picture of Wireless Power Charger!
Wirelessly power your iDevices!

Wow, I'm really surprised at how many views this is getting! Thank you everyone for reading!

I recently made a boost converter (for those unfamiliar with them, they effectively boost the voltage up to a useable amount) to make a USB Ipod charger using 2 AA batteries.

Now that that was done and over, tested tried and true, I decided I wanted to make something a little more snazzy!

Video:

http://www.youtube.com/watch?v=MDSYJowwFWM

Behold, the wireless ipod charger!

Uses all 12 volts of 6 (2 in parallel for each cell) lithium batteries!

Draws under 3 amps all the time!

Perfect for kids parties!

Now in 5 new flavors!

I've searched around on this website, and noticed that almost all of the instructables on here with wireless power seem to lack a proper explanation about how to build one; Or, when they did build one, they used an inefficient method of doing so...

This transmitter works fantastic, and can run on pretty much any voltage above 12 volts, and below 24! It's also extremely efficient (little power lost) and, it generates almost no interference. (one wireless power instructable used a square wave in the primary; Square waves have a lot of harmonics, and can cause havoc on computer systems, radios, and other sensitive electronics)

I've come to solve all of these problems!
 
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ajha9 made it!7 months ago

hey thanks I MADE IT and won prize also ,I am still working on improving efficiency and range. HEARTLY THANKS TO INSTRUCTABLE.

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bro, may i know how did u check whether your transmitter working??

Rrk98 ajha92 months ago
Can u please tell me which type and the gauge no of wire u have used
Orngrimm ajha95 months ago

Congrats to this success! :)

Please let us know what you changed in your optimising and what the performance-change was.

GofishRC0073 years ago
Hey this is a great Ible! But I cannot read this section. BTW these are the Resistors in the sender schematic.
dioeds.png
You gotta click on the little [i] and then the link to the original image link:

http://www.instructables.com/files/orig/F6H/9YP2/GUKB3PNB/F6H9YP2GUKB3PNB.png

It's 18k and 18k on the top side, and 12k and 12k on the bottom side ;-)
does not it generate emp that harmful to electronics
mnowak71 year ago

I dont know why but i cant get it to work. the first Mosfet gets just hot and I dont even get anything to the master coils : /

Hello bro..how did u overcome this problem u faced??
vlad.fara.125 days ago

Hello! :) I wanted to ask(I am new to coils) if the 3+3 turn coil is like 6 turns but in the middle a stripped bit, or a 3 turn coil with a stripped bit in the middle? (as it is a bit unclear in the pictures.. perhaps you can even add this to the coil step :D ) Thanks in advance :D

cjena78627 days ago
How this project makeing for long distance working
SURYANN1 month ago
coooooooooool
WaliW1 month ago

I was very happy to uncover this site. I wanted to thank you for your time just for this fantastic read!!

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LancelotK1 month ago

does the transmitter have AC to DC converter and DC to AC inverter? what are the uses for MOSFET and ZENER diode? why use ZENER diode instead of ultrafast diode?

zaryabbbb1 month ago

can i buy the kit ??? can anybody please tell me its price please

xander005 made it!2 months ago

Hey Guys, I made it! I finally made it, thank you for your information and all the help, i used this for my college project!!

https://www.youtube.com/watch?v=rdPWNb-70tQ

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BinyaminK2 months ago

Where is the ferrite toroid in this schematic? Also, where does the second ultra-fast diode go? It's not in the schematic. Lastly, do we need the filter cap or is it not really necessary?

Bodo13 months ago

Hello can you give me the steps of the circuit and the value of the components thanks

lovatatic_3 months ago
can you please give me the steps to make this , I'm lost
Hey, whats the range you achieved? Cause my circuit works but the efficiency drops extremely fast to 0% at a distance of 4 inches or so. Do you know what I could have done wrong?

One drawback to wireless chargers is that they don't achieve great distances. I'm not sure what the maximum distance is for this project, but 4 inches sounds about right.

Great project!Thumbs Up! :)

CatalinM15 months ago

I have just made this circuit and I ran into a problem.When I connected the circuit to the power supply the wires melted. Any ideea on why that happend?

uday.sring6 months ago

how can i simulate wireless power circuit please help me ..............

uday.sring6 months ago

how can in simulate the circuit of transmitter and receiving circuit

AlexanderH37 months ago

about how much does this cost to make total?

Greatlightt8 months ago

a vital information is missing from this project...WHAT IS THE INDUCTANCE VALUE OF THE 3 X 3 CENTER TAP COIL....

you said the coil oscillates at 50khz

Hey,can this charger will work for other phone

I think you can always replace the usb cable? since USB generally tend to be 5V I dont see any reason why you should not be able to?

Greatlightt9 months ago

i made it and its working.....i got 9v without using the 7805...i just wish i can increase the range of transmission

Hi, can u help me to troubleshoot my circuit.

ok whats the issue

Hi, my circuit is not working, i have used 2.2uf capacitor mkp similar type. I dont have cro to troubleshoot.

chilambarasan8 months ago

in which node have to check the square wave output at transmitter.

Greatlightt8 months ago

what is the resonant frequency

Klaxons9 months ago

Hey! What's diameter of the primary and secondary coils? I made those circuits, but I have only 0.7 A on the receiver.

DEVA RAJ11 months ago

can make to laptop wireless charger..?
bcoz i want to do final project for IT Networking can anyone help me

mnowak71 year ago

can i take 2 1n4007 diodes instead of the uf4007? I bought 1 instead of 2 of the uf4007's and I cant buy one more. Then i had to pay 5.4 shipping fee for 1 3 cent diode :/

rvan ham1 year ago

Looks simple and smart.

Gone make this for charge my divinglight.

apravin1 year ago

Hello i wanted to build a wireless charger to charge a 9V battery..... plz help me yar... thanx

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