Wireless Energy Transfer

Spring '07 Senior Design Project
A side project to the wireless ipod charger. The efficiency is pretty low but we needed to test our project first on an LED. We are planning on increasing the radius and see what the outcome will be. Range can be about 2 ft.

Category:

Howto & Style

Tags:

• Matching
• resonance
• frequency
• wireless
• energy
• transfer
• LED
• polytechnic
• power
• resonant
• electrical
• engineer
• project
• ipod

[insightllc]

@godulous Tesla made earthquakes in 1899. That is why he didn't receive the Nobel... his WMD is historic just look at the hotel. Room #3327- #3328. 3h3m27s - 3h3m28s The first WMD was delivered from Knob Hill, Colorado Springs to Yakutat Bay you see.

[quantumbits]

@insightllc Wow that's a lot of 3's. You know if you take 12345679 x8 on a calculator it equals 98765432. What physical evidence indicated that he caused the quake?

[awaissidd]

what is the amplitude of 169kHz signal?????

[jammy1323]

now try it with 120 miles away

[sam08016]

Can you please provide me the details of wire and capacitor connected in parallel to both of the coils? What are it's values???

[sam08016]

Can you please provide me the details of wire and capacitor connected in parallel to both of the coils? What are it's values???

[jonco6]

@MadScientist1011

To creat a resonant freq you can use the formula one over two pi square root lc l being inductance and c being capacitance

to calculate it

[SuperShanmugapriya]

good but bad

[sibalogh]

My electric tooth brush charger circuit works on this principle and at work I used this method to test some alarms which had inductors in them.

[MrJohnmyatt]

You're missing a capacitor on the reciver coil, I use an air-variable capacitor for fine tuning on mine. Put the coil at the other end of your house then just using a frequency generator you can tune into the resonant frequency of that coil and watch the neon light up. Then measure your input and output to see if you'd picked up extra energy from your local environment.

I just finished building a transverse receiver today with a small coil and a long antenna connected to a 316s steel sphere.

[lifemetall]

wow you guys have no idea what you are talking about, "wireless transfer" has been here since the first transformer was invented, learn more from transformers so you know what i'm talking about. REAL wireless transfer should reach high distances and shouldn't involve coils, since coil "wireless transfer" has much energy loses, thats why is used in transformers

[MadScientist1011]

what is the cap used?