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Bob Pease
Robert Allen Pease (August 22, 1940 – June 18, 2011) was an electronics engineer known for analog integrated circuit (IC) design, and as the author of technical books and articles about electronic design. He designed several very successful "best-seller" ICs, many of them in continuous production for multiple decades.These include LM331 voltage-to-frequency converter, and the LM337 adjustable negative voltage regulator (complement to the LM317). Life and career Pease was born on August 22, 1940 in Rockville, Connecticut. He attended Northfield Mount Hermon School in Massachusetts, and subsequently obtained a Bachelor of Science in Electrical Engineering (BSEE) degree from Massachusetts Institute of Technology in 1961. He started work in the early 1960s at George A. Philbrick Researches (GAP-R). GAP-R pioneered the first reasonable-cost, mass-produced operational amplifier (op-amp), the K2-W. At GAP-R, Pease developed many high-performance op-amps, built with discrete so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rockville, Connecticut
Rockville is a census-designated place and a village of the town of Vernon in Tolland County, Connecticut, United States. The population was 7,474 at the 2010 census. Incorporated as a city in 1889, it has been consolidated with the town of Vernon since 1965. Geography According to the United States Census Bureau, the CDP has a total area of , of which is land and (1.70%) is water. History Early settlement In 1726, Samuel Grant traded his farm in Bolton for in the northern part of Bolton. This included the area which is now known as "Rockville" and for about the next century it was a nameless village. A prominent feature of the area is the Shenipsit Lake, or "The Snip" as it is currently affectionately called by the residents. The Snip feeds the Hockanum River which cascades 254 feet over . The river was used by the farmers for a grist mill, a saw mill, an oil mill and even a distillery starting . Rock Mill In 1821, Colonel Francis McLean built the first textile mill in w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solid State (electronics)
Solid-state electronics means semiconductor electronics: electronic equipment using semiconductor devices such as transistors, diodes and integrated circuits (ICs). The term is also used as an adjective for devices in which semiconductor electronics that have no moving parts replace devices with moving parts, such as the solid-state relay in which transistor switches are used in place of a moving-arm electromechanical relay, or the solid-state drive (SSD) a type of semiconductor memory used in computers to replace hard disk drives, which store data on a rotating disk. History The term "solid-state" became popular at the beginning of the semiconductor era in the 1960s to distinguish this new technology based on the transistor, in which the electronic action of devices occurred in a solid state, from previous electronic equipment that used vacuum tubes, in which the electronic action occurred in a gaseous state. A semiconductor device works by controlling an electric current c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operational Amplifier
An operational amplifier (often op amp or opamp) is a DC-coupled high-gain electronic voltage amplifier with a differential input and, usually, a single-ended output. In this configuration, an op amp produces an output potential (relative to circuit ground) that is typically 100,000 times larger than the potential difference between its input terminals. The operational amplifier traces its origin and name to analog computers, where they were used to perform mathematical operations in linear, non-linear, and frequency-dependent circuits. The popularity of the op amp as a building block in analog circuits is due to its versatility. By using negative feedback, the characteristics of an op-amp circuit, its gain, input and output impedance, bandwidth etc. are determined by external components and have little dependence on temperature coefficients or engineering tolerance in the op amp itself. Op amps are used widely in electronic devices today, including a vast array of consumer, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Jose Mercury News
''The Mercury News'' (formerly ''San Jose Mercury News'', often locally known as ''The Merc'') is a morning daily newspaper published in San Jose, California, in the San Francisco Bay Area. It is published by the Bay Area News Group, a subsidiary of Digital First Media. , it was the List of newspapers in the United States#Top 25 newspapers by circulation, late 2012 through early 2013, fifth largest daily newspaper in the United States, with a daily circulation of 611,194. , the paper has a circulation of 324,500 daily and 415,200 on Sundays. As of 2021, this further declined. The Bay Area News Group no longer reports its circulation, but rather "readership". For 2021, they reported a "readership" of 312,700 adults daily. First published in 1851, the ''Mercury News'' is the last remaining English-language daily newspaper covering the Santa Clara Valley. It became the ''Mercury News'' in 1983 after a series of mergers. During much of the 20th century, it was owned by Knight Ridder. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UBM Plc
UBM plc was a British business-to-business (B2B) events organiser headquartered in London, England, before its acquisition by Informa in 2018. It had a long history as a Multinational corporation, multinational media company. Its main focus was on B2B events, but its principal operations included live media and business-to-business communications, marketing services and data provision, and it principally served the technology, healthcare, trade and transport, ingredients and fashion industries. UBM was listed on the London Stock Exchange and was a constituent of the FTSE 250 Index. History Newspaper interests The history of the companies that made up UBM stretches back almost two hundred years. Up until its acquisition UBM businesses published many titles that were launched in the 19th century, including ''Building'' magazine, launched in 1843 by Joseph Hansom, as well as ''Chemist & Druggist''. The company was founded in 1918 as United Newspapers by David Lloyd George to acqu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PR Newswire
PR Newswire is a distributor of press releases headquartered in Chicago. The service was created in 1954 to allow companies to electronically send press releases to news organizations, using teleprinters at first. The founder, Herbert Muschel, operated the service from his house in Manhattan for approximately 15 years. The business was eventually sold to Western Union and then United Newspapers of London. In December 2015, Cision Inc. announced it would acquire the company. On January 1, 2021, Cision formally merged PR Newswire into the company, ending its status as a legal entity after 66 years. Cision plans to continue utilizing the brand name for the foreseeable future in the United States, as well as in Europe and the Asia-Pacific regions. History PR Newswire was founded in March 1954 by Herbert Muschel, who ran the business from his town house in New York City for the first 15 years of its operation. The company used telecommunications lines and teleprinters owned by Weste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hackerspace
A hackerspace (also referred to as a hacklab, hackspace, or makerspace) is a community-operated, often "not for profit" (501(c)(3) in the United States), workspace where people with common interests, such as computers, machining, technology, science, digital art, or electronic art, can meet, socialize, and collaborate. Hackerspaces are comparable to other community-operated spaces with similar aims and mechanisms such as Fab Lab, men's sheds, and commercial "for-profit" companies. History Hackerspaces with open membership became common throughout Germany in the 1990s in the orbit of the German Chaos Computer Club (CCC), with the c-base being probably an example. The concept, however, was limited to less than a dozen spaces within Germany, and did not spread beyond borders at first. Most likely this was because initial founding costs were prohibitive for small groups without the support of a large organization like the CCC. From 1997, Chicago's Autonomous Zone Infoshop hosted " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linear Technology
Linear Technology Corporation was an American semiconductor company that designed, manufactured and marketed high performance analog integrated circuits. Applications for the company's products included telecommunications, cellular telephones, networking products, notebook and desktop computers, video/multimedia, industrial instrumentation, automotive electronics, factory automation, process control, military and space systems. The company was founded in 1981 by Robert H. Swanson, Jr. and Robert C. Dobkin. In July 2016, Analog Devices agreed to buy Linear Technology for 14.8 billion dollars. This acquisition was finalized on March 10, 2017. The Linear name survives as the "Power by Linear" brand that is used to market the combined power management portfolios of Linear Technology and Analog Devices. Products As of August 2010, the company made over 7500 products, which they organized into seven product categories: data conversion (analog to digital converters, digital to anal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jim Williams (analog Designer)
James M. Williams (April 14, 1948 – June 12, 2011) was an analog circuit designer and technical author who worked for the Massachusetts Institute of Technology (1968–1979), Philbrick, National Semiconductor (1979–1982) and Linear Technology Corporation (LTC) (1982–2011). He wrote over 350 publications relating to analog circuit design, including five books, 21 application notes for National Semiconductor, 62 application notes for Linear Technology, and over 125 articles for EDN Magazine. Williams suffered a stroke on June 10 and died on June 12, 2011. Bibliography (partial) * * * * * * * * * * * * For a complete bibliography, see. See also *Paul Brokaw *Barrie Gilbert *Howard Johnson (electrical engineer) *Bob Pease — analog electronics engineer, technical author, and colleague. Pease died in an automobile accident after leaving Williams' memorial. *Bob Widlar — pioneering analog integrated circuit designer, technical author, early consultant to Linear Te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Half-mast National Semiconductor 2011-06-21
Half-mast or half-staff (American English) refers to a flag flying below the summit of a ship mast, a pole on land, or a pole on a building. In many countries this is seen as a symbol of respect, mourning, distress, or, in some cases, a salute. Most English-speaking countries use the term ''half-mast'' in all instances. In the United States, this refers officially only to flags flown on ships, with ''half-staff'' used on land. The tradition of flying the flag at half-mast began in the 17th century. According to some sources, the flag is lowered to make room for an "invisible flag of death" flying above. However, there is disagreement about where on a flagpole a flag should be when it is at half-mast. It is often recommended that a flag at half-mast be lowered only as much as the hoist, or width, of the flag. British flag protocol is that a flag should be flown no less than two-thirds of the way up the flagpole, with at least the height of the flag between the top of the flag a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volkswagen Beetle
The Volkswagen Beetle—officially the Volkswagen Type 1, informally in German (meaning "beetle"), in parts of the English-speaking world the Bug, and known by many other nicknames in other languages—is a two-door, rear-engine economy car, intended for five occupants (later, Beetles were restricted to four people in some countries), that was manufactured and marketed by German automaker Volkswagen (VW) from 1938 until 2003. The need for a ''people's car'' ( in German), its concept and its functional objectives were formulated by the leader of Nazi Germany, Adolf Hitler, who wanted a cheap, simple car to be mass-produced for his country's new road network (Reichsautobahn). Members of the National Socialist party, with an additional dues surcharge, were promised the first production, but the Spanish Civil War shifted most production resources to military vehicles to support the Nationalists under Francisco Franco. Lead engineer Ferdinand Porsche and his team took until 1938 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microtron
A microtron is a type of particle accelerator concept originating from the cyclotron in which the accelerating field is not applied through large D-shaped electrodes, but through a linear accelerator structure. The classic microtron was invented by Vladimir Veksler around 1944. The kinetic energy of the particles is increased by a constant amount per field change (one half or a whole revolution). Microtrons are designed to operate at constant field frequency and magnetic field in the ultrarelativistic limit. Thus they are especially suited for very light elementary particles, namely electrons. In a microtron, due to the electrons' increasing momentum, the particle paths are different for each pass. The time needed for that is proportional to the pass number. The slow electrons need one electric field oscillation, the faster electrons need an integer multiple of this oscillation. Racetrack microtron A racetrack microtron is a larger-scale microtron which uses two electromagnets i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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