✨ DIY Wireless Power Transmitter + Spinning LED Display | BC547 Transistor Circuit ✨
In this video, I’m demonstrating a simple wireless power transfer project using BC547 NPN transistors and a rotating LED display made with a DC motor. This project uses basic components and shows how power can be transferred wirelessly to light up LEDs on a spinning platform!
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🔧 Circuit Overview:
Two BC547 transistors connected in a push-pull oscillator configuration
Emitters of both transistors are joined together
1kΩ resistor from first transistor’s collector to second transistor’s base
Another 1kΩ resistor from first transistor’s base to second transistor’s collector
A toroid inductor wound with 28 AWG enameled copper wire (20-0-20 turns) connected to both collectors
A 4.5 cm plastic pot used to wind a tertiary/feedback coil (20 turns of 28 AWG) on its surface – this transmits power wirelessly
0.01µF ceramic capacitor added across the feedback coil to form a tank circuit
Receiver coil is either air-core or 5 mH iron-core inductor connected to multicolor LEDs
Receiver is mounted on a small 3V DC motor pulley, so the LED lights appear like a spinning glowing ring
⚡ When powered ON, the transmitter coil generates an alternating magnetic field. As the motor spins the receiver coil on top of the transmitter, the LEDs light up wirelessly and create a beautiful rotating light effect.
🎯 Perfect for: Beginners, school projects, and anyone curious about basic wireless energy transmission using transistors.
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🔗 For full circuit diagram and explanation, check the WhatsApp channel.
#WirelessPower #BC547Circuit #DIYTransmitter #WirelessLED #RotatingLED #ElectronicsProject #SimpleCircuit #TechDIY