by Tarun Agarwal 12 years ago Communication Using Infrared Technology Infrared Communication Infrared band of the electromagnet corresponds to 430THz to 300GHz and a wavelength of 980nm. The propagation of light waves in this band can be used for a communication system (for transmission and reception) of...
by Tarun Agarwal 12 years ago How Relays Work – Basics, Types & Applications Relays are electromechanical switches, used to control the several circuits by using low-power signal or one signal. These are found in all sorts of devices. Relays allow one circuit to switch a second circuit which can be completely separate...
by Tarun Agarwal 12 years ago What is a Touch Screen Technology & Its Working Touch screen technology is the direct manipulation type of gesture-based technology. Direct manipulation is the ability to manipulate the digital world inside a screen. A Touch screen is an electronic visual display capable of detecting...
by Tarun Agarwal 12 years ago Silicon Controlled Rectifiers – Basics, Operation & Applications Modern power electronics truly began with the advent of thyristors. Thyristors are also known as the silicon controlled rectifiers or SCRs. These are four layered and three-terminal semiconductor devices. And thyristors are unidirectional...
by Tarun Agarwal 12 years ago Interfacing Alphanumeric Display with AT89S52 Microcontroller To give instructions or information qualities to users, numerous microcontroller instruments and machines need to display letters of the alphabet and numbers. In system where only a small amount of information/data should be shown, modest...
by Tarun Agarwal 12 years ago AC Power Supplies at Home Ever wondered how does electricity comes to your house or suppose if the power is off, how you are still getting electricity at home. Actually there can be many ways to get AC power supply without actually having to stay without electricity. 4...
by Tarun Agarwal 12 years ago Fuzzy Logic – A Way to Achieve Control Based on Imprecise Inputs In this era of digital control, almost every appliance is controlled using the digital control level using 1 and 0. But just think, isn’t it quite unpractical to think every output of the daily processes you come across, depends only...
by Tarun Agarwal 12 years ago Industrial Star Delta Starter for a 3-Phase Induction Motor A 3 Phase Induction motor consists of a stator which contains 3 phase winding connected to the 3 phase AC supply. The arrangement of the winding is so as to produce a rotating magnetic field. The rotor of the Induction motor contains cylindrical...
by Tarun Agarwal 12 years ago RFID – A Basic Introduction & Simple Application Consider a Couple of Situations: You are in a mall buying a lot of things and now you have to wait in the queue for a long time and when your time comes, the person at the counter checks each item for its barcode, scans it and then the...
by Tarun Agarwal 12 years ago What is a RADAR : Basics, Types & Applications We can observe different objects around the world. Similarly, radar-like radio detection and ranging is used to assist the pilots while flying through fog because the pilot cannot notice that where they are traveling. The radar used in...
