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Mini Projects

Inverter Circuit using Two 2N3055 Transistors

Last updated on 28 April 2026 by Admin-Lavi Leave a Comment

In this post we show how to make an easy and simple Inverter Circuit using Two 2N3055 Transistors, which works with 12V battery and gives around 100 watt 220V AC power. Also this circuit is good for using with small home devices. Circuit Working: Parts List: Components Values Quantity Resistors 100Ω 10W Wire Wound 2 […]

Filed Under: Inverter Circuits, Mini Projects, Power Supply Circuits, Transistor Circuits

High Current Solar Battery Charger Circuit for 12V, 24V, 48V Batteries

Last updated on 28 April 2026 by Admin-Lavi Leave a Comment

This article for High Current Solar Battery Charger Circuit for 12V, 24V, 48V Batteries talk about how to make solar panel charger that work with many battery types. Hence, by changing small part in circuit, the Zener diode can charge 12V, 24V or even 48V battery, so this charger works for many different uses. What […]

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

Simple Power Bank Circuit to Charge Mobile Phone

Last updated on 28 April 2026 by Admin-Lavi Leave a Comment

In this article, we discuss about a Simple Power Bank Circuit to Charge Mobile Phone, because this circuit is easy to make at home using few parts. Also, it is good for emergency when there is no power and it also help to charge phone anytime and anywhere. Parts Needed for Power Bank Circuit: Li-ion […]

Filed Under: Battery Charger Circuits, Mini Projects, Power Supply Circuits

Simple High Current Battery Charger Circuit

Last updated on 28 April 2026 by Admin-Lavi Leave a Comment

This Simple High Current Battery Charger Circuit is simple but works good, as it stops charging by itself when battery reaches a set voltage. Here, the TIP35 transistor follow voltage and keeps charging voltage same and steady and this circuit is good to charge big lead acid battery. What is a High Current Battery Charger […]

Filed Under: Battery Charger Circuits, Mini Projects, Power Supply Circuits

Simple Non Contact AC Mains Voltage Detector Circuit

Last updated on 28 April 2026 by Admin-Lavi Leave a Comment

This Simple Non Contact AC Mains Voltage Detector Circuit is to find AC voltage without touching wire, and it uses antenna to catch AC signal from air. After that, the signal goes through transistors and LED blink when AC voltage is near, also this circuit is good for safety and easy to make at home. […]

Filed Under: Mini Projects, Security and Protection, Sensors and Detectors

Simple Adjustable Power Supply Circuit

Last updated on 28 April 2026 by Admin-Lavi Leave a Comment

Many electronic things need clean DC power to work good and through this post we will show how to make one easy Simple Adjustable Power Supply Circuit. The circuit changes dirty DC power to clean power and it uses one chip called LM338, the circuit take DC from 5 to 34 volt and gives clean […]

Filed Under: Mini Projects, Power Supply Circuits

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