Electronic Touch Organ Circuit
An electronic touch organ is an intriguing musical device which produces very pleasant musical notes in response to finger touches on special touch sensitive electronic pads or buttons. Modern day […]...
View ArticleHow Varactor (Varicap) Diodes Work
A varactor diode, also called varicap, VVC (voltage-variable capacitance, or tuning diode, is a kind of semiconductor diode which features a variable voltage-dependent capacitance on its p-n junction...
View ArticleSCR Applications Circuits
In this article we are going to learn many interesting SCR application circuits and also learn the main features and properties of an SCR also called a thyristor device. What's […] The post SCR...
View ArticleRotating LED Chakra Circuit for God Idols
LED Chakra is an ornamental lighting system which depicts or imitates a rotating wheel like appearance, by means of sequentially shifting Illuminated LED arrays. Indian subcontinent is a land of […]...
View ArticleComparator Datasheet Parameters
Some of the major parameters that you may come across in the datasheet of a compartaor are: Propagation delay Current consumption Output stage type (open collector/drain or push-pull) Input offset […]...
View ArticleUnderstanding Crystal Oscillator Circuits
Basic solid state crystal oscillator circuit configurations are today more developed, almost all circuits being modifications of the widely recognized vacuum tube systems like the Pierce, Hartley,...
View ArticleHow to Wire a MQ-135 Gas Sensor Module Correctly
MQ-135 is a gas sensor designed to sense or detect gaseous substance and generate a corresponding positive output voltage. In this post we will learn how to connect or wire […] The post How to Wire a...
View ArticleTunnel Diode – Working and Application Circuit
A tunnel diode is a type of semiconductor diode which features a negative resistance on account of a quantum mechanical effect known as tunneling. In this post we will learn […] The post Tunnel Diode –...
View ArticleTriacs – Working and Application Circuits
A triac can be compared to a latching relay. It will instantly switch ON and close as soon as it's triggered, and will remain closed as long as the supply […] The post Triacs – Working and Application...
View ArticleBroadcast Music using this Stereo FM Transmitter Circuit
The FM stereo transmitter circuit described below can be used for broadcasting a crystal clear stereo FM music to all nearby FM radios. FM basics Most of the basic wireless […] The post Broadcast Music...
View ArticleLDR Circuits and Working Principle
As the name suggests LDRs or Light Dependent Resistors are resistors that exhibit a wide range of resistance values depending on the intensity of light incident on its surface. The […] The post LDR...
View ArticleOptocouplers – Working, Characteristics, Interfacing, Application Circuits
OPTOCOUPLERS OR OPTOISOLATORS are devices that enable efficient transmission of DC signal and other data across two circuit stages, and also simultaneously maintain an excellent level of electrical...
View ArticleIce Warning Circuit for Automobiles
Devices that react to variations in atmosphere or fluid heat are simple to construct due to the easy availability of thermistors. This car ice warning circuit explains how to implement […] The post Ice...
View ArticlePhotodiode, Phototransistor – Working and Application Circuits
A photodiode and phototransistor are semiconductor devices which have their p-n semiconductor junction exposed to light through a transparent cover, so that external light can react and force an...
View ArticleRotating LED Chakra Circuit for God Idols
LED Chakra is an ornamental lighting system which depicts or imitates a rotating wheel like appearance, by means of sequentially shifting Illuminated LED arrays. Indian subcontinent is a land of […]...
View ArticleLaughter Sound Simulator Circuit
As the name suggests, this device generates electronic sound, resembling human laughter. BASIC DESIGN To make the circuit start the proposed operations, it must have a fundamental sound input or […]...
View ArticleInteresting Timer Circuits using IC 555 Explored
The circuits explained here are small timer circuits using the versatile chip IC 555, which generates predetermined time intervals in response to momentary input triggers. The time intervals can be […]...
View ArticleIC 555 Oscillator, Alarm and Siren Circuits
In this post we will learn how to build and optimize basic IC 555 oscillator circuits, whose waveforms can be further enhanced for generating complex sound effects such as warble […] The post IC 555...
View ArticleRed LED LightStim Circuit for Removing Facial Wrinkles
An LED based LightStim is a device used for rejuvenating facial skin by stimulating cell growth. Normally, RED LED is used in these devices since red light have been found […] The post Red LED...
View ArticleSimple Circuits using IC 7400 NAND Gates
In this article we will discuss many assorted circuit ideas built using NAND gates from ICs such as IC 7400, IC 7413, IC 4011, and IC 4093 etc. IC 7400, […] The post Simple Circuits using IC 7400 NAND...
View Article