An electronic oscillator is an electronic circuit that produces a periodic, oscillating or alternating current (AC) signal, usually a sine wave, square wave or a triangle wave, powered by a direct current (DC) source. Oscillators are found in many electronic devices, such as radio receivers, television sets, radio and television broadcast transmitters, computers, computer peripherals, cellphones, radar, and many other devices.
A crystal radio receiver, also called a crystal set, is a simple radio receiver, popular in the early days of radio. It uses only the power of the received radio signal to produce sound, needing no external power. It is named for its most important component, a crystal detector, originally made from a piece of crystalline mineral such as galena. This component is now called a diode.
The following outline is provided as an overview of and topical guide to electrical engineering.
Shri Sant Gajanan Maharaj College of Engineering (SSGMCE) is an engineering college at Shegaon in Buldhana District of Maharashtra, India. It is affiliated to Sant Gadge Baba Amravati University. SSGMCE was established on 23 August 1983 by Shri Gajanan Shikshan Sanstha, Shegaon. It is run by Shri Sant Gajanan Maharaj Temple Trust. The college grants Bachelor's & Master's degrees in engineering in mechanical, electronics & telecommunication, computer science and engineering, and information technology. It also offers programs of Masters in Business Administration (MBA). It had a total enrollment of around 1,600 students in the academic year of 2017–2018.
Defence Electronics Research Laboratory (DLRL) is a laboratory of the Defence Research & Development Organization (DRDO). Located in Hyderabad, it is actively involved in the design and development of integrated Electronic Warfare systems for the Indian Armed Forces.
Radio-frequency (RF) engineering is a subset of electrical engineering involving the application of transmission line, waveguide, antenna, radar, and electromagnetic field principles to the design and application of devices that produce or use signals within the radio band, the frequency range of about 20 kHz up to 300 GHz.
Laser Science and Technology Centre (LASTEC) is a laboratory of the Defence Research & Development Organization (DRDO). Located in Delhi, it is the main DRDO lab involved in the development of lasers and related technologies. LASTEC functions under the DRDO Directorate of Electronics & Computer Science.
Otto Julius Zobel was an electrical engineer who worked for the American Telephone & Telegraph Company (AT&T) in the early part of the 20th century. Zobel's work on filter design was revolutionary and led, in conjunction with the work of John R. Carson, to significant commercial advances for AT&T in the field of frequency-division multiplex (FDM) telephone transmissions.
Jabalpur Engineering College (JEC) is an institute located in Jabalpur, Madhya Pradesh, India. It is the oldest technical institution in central India and the 15th-oldest in India. It is the first institute of India to have started the Electronics & Telecommunication engineering education in the country, and also the last educational institution to be set up by the British in India.
Analogue filters are a basic building block of signal processing much used in electronics. Amongst their many applications are the separation of an audio signal before application to bass, mid-range, and tweeter loudspeakers; the combining and later separation of multiple telephone conversations onto a single channel; the selection of a chosen radio station in a radio receiver and rejection of others.
In signal processing, a filter is a device or process that removes some unwanted components or features from a signal. Filtering is a class of signal processing, the defining feature of filters being the complete or partial suppression of some aspect of the signal. Most often, this means removing some frequencies or frequency bands. However, filters do not exclusively act in the frequency domain; especially in the field of image processing many other targets for filtering exist. Correlations can be removed for certain frequency components and not for others without having to act in the frequency domain. Filters are widely used in electronics and telecommunication, in radio, television, audio recording, radar, control systems, music synthesis, image processing, computer graphics, and structural dynamics.
MVJ College of Engineering (MVJCE) is a private autonomous engineering college located in Bangalore, Karnataka, India. MVJCE is affiliated with Visvesvaraya Technological University (VTU). It was established in 1982 by Venkatesha Education Society. It is situated on a 15-acre campus in Whitefield, Bangalore.
Electronic engineering is a sub-discipline of electrical engineering that emerged in the early 20th century and is distinguished by the additional use of active components such as semiconductor devices to amplify and control electric current flow. Previously electrical engineering only used passive devices such as mechanical switches, resistors, inductors, and capacitors.
Defence Research and Development Laboratory (DRDL) is an Indian missile development laboratory, part of the Defence Research and Development Organization (DRDO). Their charter is centered on the design, development, and flight evaluation of various types of missile systems for the Indian armed forces. The organization's vision statement reads:
Kunnath Puthiyaveettil Padmanabhan Nambiar DIC (Lond), FIEE (Lond), CEngg (Lond.), more popularly known as K.P.P. Nambiar, was an Indian industrialist and technocrat, known for his work in the field of industrial development and technology. He was awarded Padma Bhushan by Government of India for his contributions to the field of technology in 2006.
Vakkaleri Narayana Rao was an Indian defence scientist and one of the pioneers of Electronic Warfare in India. He was a former director of the Defence Electronics Research Laboratory, Hyderabad. The Government of India awarded him the fourth highest Indian civilian honour of Padma Shri in 1982.
Dr. Shiv Prasad Kosta is a space scientist, educationist and a technocrat and currently the Group Director of Shri Ram Institute of Technology in Jabalpur and Charotar University of Science and Technology, Changa, Gujarat. During his whole career as a scientist, he has given contribution in different organizations, including the national strategic space research centre of India ISRO. Former President Dr. A. P. J. Abdul Kalam and former Chief Election Commissioner T. N. Seshan were his colleagues in ISRO during 1981 to 1995.
Ramadas Panemangalore Shenoy was an Indian defence scientist and writer, known for his contributions in the field of radar technology. He secured a doctoral degree in electrical engineering from the University of Wisconsin–Madison and joined Defence Research and Development Organization in 1961, involving himself with the indigenous development of radar technology till his retirement, as a Distinguished Scientist, in 1989.
Defence Research & Development Service (DRDS) is a Central Group 'A' Civil Service of the Government of India. DRDS scientists are Gazetted defence-civilian officers under the Ministry of Defence. They are responsible for developing new technologies and military hardware for the Indian defence and security forces.
Prof. R K Sinha is the Vice Chancellor of Gautam Buddha University, Greater Noida, Gautam Budh Nagar under Uttar Pradesh Government since January 2022. He was the Director of the CSIR-Central Scientific Instruments Organisation (CSIR-CSIO) Sector-30C, Chandigarh-160 030, India. He has been a Professor - Applied Physics, Dean-Academic [UG] & Chief Coordinator: TIFAC-Center of Relevance and Excellence in Fiber Optics and Optical Communication, Mission REACH Program, Technology Vision-2020, Govt. of India Delhi Technological University Bawana Road, Delhi-110042, India.
