This article teaches how to create a basic variable power supply circuit with the use of the 2N3055 transistor and a few additional passive elements. It comes with adjustable variable […]
Constant Voltage Transformerless Power Supply Circuit
This article transforms a basic capacitive power supply into a safer and more versatile design. The resulting transformerless circuit will offer: This improved design will be suitable for powering a […]
Transformerless Power Supply for LED String Lights
The following transformerless power supply uses an MJE13005 transistor for voltage regulation. It acts like an amplifier controlled by a base zener diode to set the output voltage. A 3uF […]
Simple Transformerless Power Supply Circuit
This post explains how to build an easy transformerless power supply circuits. These circuits are compact and simple and they all use capacitors to step down the AC voltage from […]
LM317 Adjustable Power Supply Circuit
This guide will explain, how to create a basic adjustable power supply circuit using the LM317 chip and very few extra components. As the name implies an adjustable power supply […]
LM317 High-Current Bench Power Supply
This high-current LM317 power supply, offers a universal solution for various applications requiring a reliable, and high-quality DC power source with significant current output. Potential uses include powering car subwoofers, […]