Self switching Power Supply

  One of the main features of the regulated power supply circuit being presented is that though fixed-voltage regulator LM7805 is used i...

Air Ionizer

 

Simple 12 V, 1 Amp Switch Mode Power Supply (SMPS)

 With the advent of modern ICs and circuits, the age old iron transformer type of power supply are surely becoming obsolete. Today pow...

Cheapest SMPS Circuit Using MJE13005

The explained circuit in this article is probably the simplest and the cheapest, since it employs minimum number of components and the m...

Highly Accurate, Mains High/ Low Voltage Cut Circuit

 The article describes how an accurate over and under voltage cut out circuit can be made at home for protecting the domestic appliances...

30V 1A Transformerless Power Supply

This transformerless power supply circuit is designed for medium current applications. During the negative half period, the capacitor C5 is...