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Power Supply Circuits

Simple DC Bulb Circuit

Last updated on 24 June 2026 by Admin-Lavi Leave a Comment

Want to light up a bulb by using just a battery and switch? then this Simple DC Bulb Circuit is the easiest way to understand how electricity flows and powers small devices. Also, a perfect starting point for anyone new to electronics. Circuit Working: Parts List: Components Values Quantity Battery 9V 1 On/Off Switch SPST […]

Filed Under: Hobby Circuits, LED and Lamps, Mini Projects, Power Supply Circuits

Simple PWM Solar Charge Controller Circuit

Last updated on 24 June 2026 by Admin-Lavi Leave a Comment

Want to save energy bill? then try this Simple PWM Solar Charge Controller Circuit and get power from sun. It helps to charge battery from solar panel safely and it also gives power to DC load like LED bulb or fan. Just connect solar, battery and load and then controller will do all smart work […]

Filed Under: Battery Charger Circuits, Mini Projects, Power Supply Circuits, Renewable energy, Solar Circuits

DIY Solar Battery Charger Circuit

Last updated on 24 June 2026 by Admin-Lavi Leave a Comment

This is a small DIY Solar Battery Charger Circuit project, which charges one 3.7V lithium battery using sunlight; also we can use solar cell, TP4056 charger board, one diode, one switch and one boost converter module.. This circuit make 5V power for battery and mobile charging. Graph for lithium battery charge over time: The above […]

Filed Under: Battery Charger Circuits, DIY Projects, Mini Projects, Power Supply Circuits, Renewable energy, Solar Circuits

Simple Solar Mobile Charger Circuit

Last updated on 24 June 2026 by Admin-Lavi Leave a Comment

Mobile phones need charging every day and in remote areas power is not always there; so solar charger is best option. Sunlight is free and always available in day and small solar panels can make a charger for phone; also this project is about Simple Solar Mobile Charger Circuit Circuit Working: Parts List: Components Values […]

Filed Under: Hobby Circuits, Mini Projects, Power Supply Circuits, Renewable energy, Solar Circuits

Simple 3.7V DC to 220V AC Inverter Circuit

Last updated on 24 June 2026 by Admin-Lavi Leave a Comment

Inverter is brain of backup system and without inverter, battery is useless for AC, as it changes DC power to AC power. We can use inverter at home, solar and for battery backup, as this project is a mini and Simple 3.7V DC to 220V AC Inverter Circuit Also, only with a 3.7V battery, one […]

Filed Under: Inverter Circuits, Mini Projects, Power Supply Circuits, Renewable energy

Smart Energy Meter Circuit with Arduino UNO

Last updated on 24 June 2026 by Admin-Lavi Leave a Comment

Electric bill increasing day by day; so we need smart way to measure power use. Here is a simple project using Arduino UNO, ACS712 current sensor and 16×2 LCD with I2C and it shows real time current, voltage and power. Also, this project for Smart Energy Meter Circuit with Arduino UNO help to monitor load […]

Filed Under: Arduino Projects, IoT projects, Meters and Testers, Power Supply Circuits, Renewable energy, Sensors and Detectors

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