In this article I have explained 3 popular functions of capacitors and how to use capacitors in electronic circuit by analyzing their appropriate working modes depending on the application need of a given circuit stage Introduction Seen those colorful, cylindrical and chocolate shaped parts on a PCB? These may be actually the capacitors of different […]
Archives for 2012
2N3904 Datasheet [40V, 200 mA NPN Transistor]
In this post I have explained the main datasheet and pinout details of the NPN transistor 2N3904 Introduction The transistor 2N3904 comes under the category of NPN small signal, low power, general purpose transistor, mainly applicable for switching and for signal amplification. It’s dynamic range may include a current handling capability of more than 100mA […]
2 Tone Ringtone Generator Circuit
The IC LS1240A from SGS Thompson is specifically designed for generating a 2 tone ringtone generator circuit. Thus the IC specifically becomes suitable for landline telephones for producing the ringtones when a call is received. However with little modifications the IC can be easily utilized for normal applications, in circuits where a double tone alarm […]
2 Simple Infrared (IR) Remote Control Circuits
The proposed infrared or IR remote control circuit can be used to operate an appliance ON/OFF through any standard TV remote control handset. In this write up I have explained a couple of these simple infrared remote control circuits designed for controlling any given electrical appliance through an ordinary or TV remote control unit. Introduction […]
2 Easy Automatic Inverter/Mains AC Changeover Circuits
I have been put forth with this question many times in this blog, how do we add a changeover selector switch for automatically toggling of an inverter when AC mains is present and vice versa. And also the system must enable automatic switching of the battery charger such that when AC mains is present the […]
2 Cool 50 Watt Inverter Circuits for Students and Hobbyists
A 50 watt inverter circuit might look quite trivial, but it can serve some useful purposes to you. When outdoors, this small power house can be used for operating small electronic gadgets, soldering iron, table top radios, incandescent lights, fans etc. Let’s learn 2 homemade 50 watt inverter circuit designs, beginning with a brief description […]