WIRELESS ELECTRICITY CIRCUIT USING BC547 TRANSISTOR

 WIRELESS ELECTRICITY PROJECT USING TRANSISTOR         

             Now a days chargers of many mobile phones are becoming wireless.Sometimes we as electronics hobbists and engineers are wondered what is the circuit and principle behind it.Its a simple principle of mutual induction same as how transformer transfers its power to a isolated induction coil.The same thing is happening in tesla coils,which produces a high voltage induction at secondary winding and exite to the surrounding areas Here we use a circuit to exite the coil to transfer the power.The circuit uses a transistor(BC547) to drive the coil,a resistor(15 kilo ohms),9v battery as power source,a switch to on/off the battery and an LED.The gauge of the coil is around 24swg which is wound on a 3 inch diameter pipe or any rounded type of materials.The coil can be of any swg but most preferable one is the 24 swg type as these coils have sufficient thickness and can hold high current.

            The winding of loop wire created for driving transistor is like this.Wind the coil numbers till the number reaches 15 turns.At that point make a loop.Again wind 15 turns above the loop we created.Finally we get total of 3 seperate wire.We need to cut the loop wire remove insulation and join it again.We know that air is actually an insulator.The insulator prevents the wireless activity to go beyond a certain region.By increasing number of turns with respect to primary and increasing power to the transistor will increase the range and amount of power reception.

Coil winding details :
Transistor driver - 15-loop-15 turns (wire gauge 24swg)
LED driver - 30 turns(wire gauge 24swg)




















Components used:
Transistor - Bc547
Resistor - 1 kilo ohms
LED - RED recommended
ON/OFF switch
Battery - 9V









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