Power Supply Circuits

In this post we comprehensively discuss how to construct 12V 5 Amp SMPS circuit using MOSFET and optocoupler feedback. Its efficiency is around 85%. What is a 12V 5 Amp SMPS Circuit: A 12V 5A SMPS Switched Mode Power Supply circuit is designed to provide a stable and regulated 12V DC output with a maximum […]

I built a new power supply that can give out 14V at 1 amp. It is flexible and can be used for many things. I use it to give extra juice to some electronic parts. This new design is very similar to a power supply I made before 3.3V at 2.5 amps, so I wont […]

In this post we will learn how to build a simple 3.3V 3 Amp SMPS circuit which can be used for powering all types of microcontroller and digital electronics circuits efficiently. The main advantage of this SMPS circuit is that it does not dissipate heat unlike linear regulators which generates a lot of heat and […]

I tried to build a simple power supply that changes AC current to 5V at 1 amp. I used a tiny chip called the TNY267P. This chip is like a whole mini system for a power supply, it controls the current, turns it on and off, protects itself from overheating and even gets its own […]

Imagine all the cool electronic devices you use need clean, steady power to work right. That is what a stable power supply does. This article shows you how to build a simple power supply using a part called a zener diode. This kind of supply is good for projects that need a constant 12V and […]