How to Build an Ultra Low Drop Linear Regulator Circuit Using LM555 and TL431

Ultra Low Drop Linear Regulator Circuit

Hey, if you’re dealing with battery-powered gadgets or any setup where every millivolt counts, this circuit could be a game-changer. The image shows an ultra-low dropout linear regulator that can keep your output stable even when the input voltage is barely higher than what you need out. It’s built around the LM555 timer IC for … Read more

How to build a 1 V to 30 V, 3 A regulator using LM317 and a power transistor

1 V to 30 V, 3 A regulator

Hey, if you’re tinkering with electronics projects and need a solid power supply that can handle a wide range of voltages at decent current, this circuit might be just what you’re looking for. The diagram shows a straightforward voltage regulator setup that promises 1V to 30V output at up to 3 amps. It’s built around … Read more

12V Transformerless Power Supply Circuit Explained

12V Transformerless Power Supply Circuit

If you’ve ever needed a compact way to power a small electronic circuit directly from mains, without using a bulky transformer, you’ve probably come across something called a transformerless power supply. These supplies are simple, cheap, and very compact. Instead of stepping down mains voltage with a transformer, they use a series capacitor to limit current, followed by … Read more

Building a Variable Power Supply with 2N3055 Transistor

Building a Variable Power Supply with 2N3055 Transistor

If you’ve been tinkering with electronics for a while, you know that a good power supply is essential. Most circuits need a stable and adjustable voltage source to test, troubleshoot, and operate properly. Instead of buying a bench power supply, you can build one yourself using a handful of components. One of the most popular … Read more

Dual Power Supply Circuit using TIP141, TIP42C, and LM340T5

Dual Power Supply Circuit

Power supplies are at the heart of every electronics project. Whether you are working with microcontrollers, op-amps, or audio amplifiers, stable and reliable voltage is essential. The circuit shown here provides two regulated outputs: 12V DC and 5V DC. It uses a mix of linear regulators, filtering capacitors, and transistors to handle higher current demands. In this guide, … Read more