by Tarun Agarwal 11 years ago Brief History of Electronics and Their Development In this 21st century, every day we are dealing with electronic circuits and devices in some of the other forms because gadgets, home appliances, computers, transport systems, cell phones, cameras, TV, etc. all have electronic components...
by Tarun Agarwal 11 years ago Digital Tachometer Circuit Operation using Microcontroller and their Types A digital tachometer is a digital device that measures and indicates the speed of a rotating object. A rotating object may be a bike tire, a car tire or a ceiling fan, or any other motor, and so on. A digital tachometer circuit comprises...
by Tarun Agarwal 11 years ago Explain Different Types of LEDs and Working Applications for Engineering Students In 1972, the first yellow LED was invented by M. George Craford, and he was a student of Holonyak. In 1980s, the first superlight LEDs were developed and these LEDs were cost effective, more stable and brighter. From 1990s onwards, the...
by Tarun Agarwal 11 years ago Thermistor Types – Their Workings and Applications A thermistor is a temperature sensing element composed of sintered semiconductor material that exhibits a large change in resistance in proportion to a small change in temperature. A thermistor can operate over a wide temperature range...
by Tarun Agarwal 11 years ago Microprocessor History and Its Generations Fairchild semiconductors (founded in 1957) invented the first Integrated Circuit in 1959 that marked the microprocessor history. In 1968, Gordan Moore, Robert Noyce, and Andrew Grove resigned from the Fair child semiconductors and started...
by Tarun Agarwal 11 years ago Different Types of Resistors and Its Color Code Calculation in Electronics Resistors are the most commonly used components in electronic circuits and devices. The main purpose of a resistor is to maintain specified values of voltage and current in an electronic circuit. A Resistor works on the principle of Ohm’s...
by Tarun Agarwal 11 years ago What is Modulation and Different Types As we are living in an era of communication wherein we can easily transfer any form of information (video, audio, and other data) in the form of electrical signals to any other device or destined area. Although it is common in our perceptual...
by Tarun Agarwal 11 years ago Mobile Cellphone Battery Charging Circuit with Explanation A mobile battery charger circuit is a device that can automatically recharge a mobile phone’s battery when the power in it gets low. Nowadays mobile phones have become an integral part of everyone’s life and hence require frequent charging...
by Tarun Agarwal 11 years ago Different Types of Relays and Their Working Principles The development of relays was initiated in the period 1809. As a part of the invention of the electrochemical telegraph, the electrolytic relay was found by Samuel in the year 1809. Thereafter, this invention was asserted by the scientist...
by Tarun Agarwal 11 years ago Why You Should Start Academic Projects from Engineering 1st Year? There is one story of a guy who was desperately looking forward to a job with a particular reputed company. He attended interviews several times with his own projects, but was not selected, and even got rejected by the HR personnel and...
