Wireless Battery Charger. #wireless #diyprojects #Altium

Accelerate Your Career in Electronics Design Altium Student Lab: www.altium.com/in/yt/electricdhamaka #Altium #AltiumStudentLab Wireless Battery Charger & LED Glow Using Push-Pull Circuit | BD139 BD140 In this video, I show how I made a wireless power transfer system using a simple push-pull oscillator circuit. This project can wirelessly glow LED wire and charge a small lithium battery without any direct electrical connection. 🔧 Circuit Details Transistors: BD139 & BD140 (push-pull configuration) Input Supply: 12V DC Current Consumption: ~674 mA Transmitter Coil: Ferrite (rod/ring) core 20 turns copper wire Capacitor in parallel: 104J (0.1µF) Receiver Coil: 20 turns, 28-gauge enamel copper wire Parallel capacitor: 104J (0.1µF) ⚡ Working Principle The push-pull circuit generates high-frequency AC, which energizes the transmitter coil. This creates a strong alternating magnetic field. The receiver coil picks up this energy through electromagnetic induction. 🔋 Output Section Bridge rectifier Filter capacitor TP4056 lithium charging module 400 mAh rechargeable battery The received AC power is converted into DC and safely charges the battery. You can also directly glow LEDs or LED wire wirelessly. 📌 Applications Wireless battery charging Wireless LED lighting Educational electronics project DIY experiments & science demos ⚠️ Note: Efficiency depends on coil distance, alignment, and resonance. This project is for learning and experimentation, not commercial charging. If you enjoyed this project, LIKE 👍 SHARE 🔁 and SUBSCRIBE to 🔔 Electric Dhamaka for more simple & exciting electronics projects. 📺 Channel Focus Fun, practical, and relatable electronics projects anyone can try at home. #WirelessPower #WirelessCharging #PushPullCircuit #BD139 #BD140 #ElectronicsProject #ElectricDhamaka