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Newly Updated Circuit Projects:

How to Use Resistors with LED, Zener and Transistor

Last Updated on October 6, 2019 by Swagatam 56 Comments

circuit2

In this post I have explained how to use resistors while designing an electronic circuits using LEDs, zener diodes, or transistors. This article can be very useful for the new hobbyists who normally get confused with the resistor values to be used for a specific component and for the desired application. What is a Resistor […]

Filed Under: Electronics Theory Tagged With: LED, Resistors, Transistor, Zener

Stereo FM Transmitter Circuit using IC BA1404

Last Updated on October 6, 2019 by Swagatam 52 Comments

stereofmtransmittercircuit

The following posts explains how to build a simple to build FM stereo transmitter circuit using IC BA1404. About the IC BA1404 An exceptional stereo audio FM wireless transmitter circuit is presented below. The circuit relies upon the IC BA1404 from ROHM Semiconductors. BA1404 is a monolithic FM stereo modulator which includes integrated stereo modulator, […]

Filed Under: Wireless Circuits Tagged With: BA1404, FM, Stereo, Transmitter

Illuminating DRL and Turn Lights with Single Common Lamp

Last Updated on September 26, 2019 by Swagatam 54 Comments

drl2Bturn2Bwith2Bcommon2Bled

In this article I have explained a simple circuit for enabling the turn signal lamp of any car to carry out a two-way function of DRL lights as well as well the stipulated turn lights. The idea was requested by Mr. Artem. Technical Specifications Thank you for your fanaticism with electronics, this is really noticeable […]

Filed Under: Automobile Electronics Tagged With: Common, DRL, Illuminating, Lights, Single, Turn

LED Obstruction Light Circuit

Last Updated on September 17, 2019 by Swagatam 15 Comments

2835 smd LED

Obstruction lights are warning lights that we see at the top of tall structures like towers and skyscrapers, installed for indicating the aircrafts and other flying objects about these obstructions. These lights alert the flying aircrafts regarding the minimum height they should maintain above these tall structures to avoid a possible collision and accidents. Obstruction […]

Filed Under: Lamps and Lights Tagged With: LED, Light, Obstruction

Triac Battery Charger Circuit

Last Updated on September 13, 2019 by Swagatam 53 Comments

triac battery charger circuit 750x445

A triac based battery charger replaces a normal relay for automatically cutting off power to the battery very efficiently. In this post I have explained a simple a battery charger circuit using a triac auto shut-off facility. The circuit can be used for charging any high current, high AH types battery with a full-charge auto […]

Filed Under: Battery Charger Circuits Tagged With: Battery, Charger, Triac

SPDT Relay Switch Circuit using Triac

Last Updated on September 13, 2019 by Swagatam 25 Comments

SPDTtriac 1

An efficient solid state single pole double throw or SPDT switch can be built using triacs for replacing a mechanical SPDT. In this post I have explained a simple solid state triac SPDT relay circuit, using an optocoupler and a couple of triacs, which can be used as an effective replacement for mechanical relays. The […]

Filed Under: Inverter Circuits Tagged With: Relay, SPDT, Switch, Triac

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