5V Voltage Regulator

Build a stable 5V DC power supply using the LM340 voltage regulator. Ideal for microcontroller circuits and small electronics projects.

12V to 5V Converter

Learn how a 5V voltage regulator circuit works, circuit diagram, applications, and how to regulate 12V or higher voltage down to stable 5V DC for electronics.

3.7V to 1.5V Converter

Learn how to convert 3.7V to 1.5V using a buck converter or voltage regulator. Ideal for low-voltage electronics like sensors, microcontrollers, or low-power LEDs.

Adjustable Voltage Regulator Project

Learn how to make an adjustable voltage regulator using LM317 or LM338. Perfect for DIY electronics projects requiring a variable DC output voltage.

Full Wave Bridge Rectifier Project

Learn how a full-wave bridge rectifier works using 4 diodes and a transformer. Explore working principles, circuit diagrams, and practical applications.

3.7v battery level indicator circuit

A simple 3.7V battery level indicator circuit using LEDs to monitor charge status for lithium-ion batteries. Ideal for DIY electronics and portable devices.

12V Charging Indicator circuit

Design a simple 12V charging indicator circuit using LEDs and transistors to visually show battery charging and full status for automotive or solar battery systems.

5V to 1.5V Converter Circuit

Learn how to convert 5V DC to 1.5V using a simple step-down (buck) converter. Perfect for low-power electronics like sensors, LEDs, and microcontroller peripherals.

12 Volt Battery Level Indicator

Simple 12V battery level indicator using LEDs or op-amps to show charge status. Ideal for DIY battery monitoring and renewable energy applications.

12V Charging Indicator Circuit

Easily monitor your 12V battery charging status with this LED-based indicator circuit. A simple and efficient solution for battery health monitoring.

12V Negative Voltage Regulator

Learn how a 12V negative voltage regulator works. Circuit, applications, pinout, and FAQ included. Ideal for power supply stabilization in electronics projects.