Wireless Power Transmission

Here i'm going to show how i built a wireless power transmitter / receiver that can power things up to ~2 ft away. The Tx/Rx "coils" are actually single 15" loops of 1/4" copper tubing. The transmitter and receiver are in resonance (just like a Tesla coil), so the maximum amount of power can be transferred. I'm only putting about 40-45 watts of power into my transmitter, so I was very surprised by the results i got. Technical Specs: Loop Inductance: 1.05 uH Resonant Cap value: 3 uF Resonant Frequency: 89.7 kHz MOSFET: IRF640 (200V VDS, 1.5V VGS threshold). This FET has a very high R_DS of about 0.2 ohm so they get very warm and they also go into latch-up easily because of the low gate threshold voltage. I don't reccommend this part, and in future builds I'll be replacing this with an IRF250 or IRF260. Gate Diodes (Also used on rx rectifier): MUR120 (200V / 75 nS recovery time) LED Board resistors: 330 ohm Magnet in the electromagnet part of the video is a 40mm x 20mm N52 In the future I plan to make a dramatically larger ZVS driver that can handle around 1,000 watts and power a 4-6 ft transmitter coil to fly a small drone several feet off the ground, which will be carrying a reciever coil instead of a battery. This type of device is also really useful for transferring power through a barrier, or to a rotating object. Music used: Serge Pavkin - Fractal Serge Pavkin - Tech Serge Pavkin - Network https://www.youtube.com/c/SergePavkinMusic