GSM Architecture and working

GSM architecture

Global system for mobile communication abbreviated as “GSM” is widely used because of its vast coverage. The GSM is the cellular norm of second developed generation in order to adapt …

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Relay Driver Circuit Using ULN2003

ULN2003 pinout

A relay is an electromechanical switch that has many industrial applications to provide isolation between high-voltage and low-voltage circuits. These two circuits have different voltage ratings. One might be a …

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How to control external devices remotely

How to control external devices remotely,In this article, I will tell you about how to control external devices remotely. There are many applications of remote control devices. Nobody wants to …

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What are main Transformer parts

Transformer parts, In this article I discussed about transformer parts. According to construction transformer consists of following parts. Steel tank Core Windings Conservator Breather Thermometer Pressure relief pipe Valves Buchholz …

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How transformer works ?

How transformer works ? It is a static device which convert electrical power from one circuit to another without making any change in frequency. It is used to step up …

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