This post explains how to calculate resistor and capacitor values in transformerless power supply circuits using simple formulas like ohms law. Analyzing a Capactive Power Supply Before we learn the […]
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5 Useful Power Failure Indicator Circuits Explained
In this post we will learn 5 useful power supply failure indicator circuits which can be used to get an instant indication regarding an input power failure situation. This post […]
LED Night Lamp with Dimmer Circuit
The post explains a simple plug-in type night lamp circuit with delayed switch OFF and dimming facilities. The entire circuit is built using a transformerless power supply which ensures that […]
Circuit Projects for Beginners and School Students
In this article we will learn how to build small electronic circuit projects suitable for beginners, young hobbyists, school students, who are new to electronics and are at the initial […]
Gel Cell Battery Charger Circuit [Constant Current, Constant Voltage]
In this post we will learn what are gel cell batteries and also learn how to build a specialized charger for charging a gel cell battery, with full calculations. The […]
How to Design Simple LED Driver Circuits
In this post we will discuss how to design your own customized, simple LED driver circuits at home. We will learn how to calculate specific LED configurations for applying the […]