The circuit described here can be built and used in your vehicle for an automatic dipping and dimming operation of the vehicle headlamps, in response to the intense lights coming from an […]
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How to Use LM317 for Making a Variable Power Supply Circuit
In this post we will elaborately discuss how to build a simple LM317 based adjustable power supply circuit using minimum number of external components. As the name suggests a variable […]
AC 220V/120V Mains Surge Protector Circuits
Voltage spikes can sometimes be a big nuisance as far as the safety of the various electronic appliances are concerned. Let’s learn how to make a simple AC Mains surge […]
Simple Peltier Refrigerator Circuit
In this post we learn a straightforward procedure for building a simple refrigerator using Peltier device for generating the required cooling effect inside the fridge. How Peltier Device Works We […]
How to Calculate Transformerless Power Supply Circuits
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 […]
Single Transistor LED Flasher Circuit
It is possibly the smallest LED flasher to date, which is able to flash an LED ON/OFF infinitely using a single transistor, a resistor, and a capacitor. Can you imagine […]