Wireless power transmission using Arduino UNO

This is simple wireless power transmission that used Arduino UNO and power transistor.

You can use any NPN power transistor such as TIP122 or 2N3055 or 13003 ... etc.

Both coils are air-core with similar diameter and similar turns number (30 turns - 2 inches diameter).

The output voltage in second coil is alternating (AC) so you have to use bridge diode to convert that to DC.

For coil making you can use the chock coils wire of CFL lamp. you can also find the NPN transistor in CFL lamp (usually 13001 or 13003).

Parts list:

Bridge diode 1A

NPN power transistor

Capacitor 47nF(2pcs)

30 turns 2 inches diameter air-core coil(2pcs)

LED

1.5 to 9v battery
Resistor 100R

In following video you can see how it works:
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Code:

void setup()
{
pinMode(13,OUTPUT);
}
void loop()
{
digitalWrite(13,HIGH);
delay(0.5);
digitalWrite(13,LOW);
delay(0.5);
}