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  1. › wiki › TSMCTSMC - Wikipedia

    Taiwan Semiconductor Manufacturing Company Limited. Taiwan Semiconductor Manufacturing Company Limited ( TSMC; also called Taiwan Semiconductor) [3] [4] is a Taiwanese multinational semiconductor contract manufacturing and design company. It is the world's most valuable semiconductor company, [5] the world's largest dedicated independent ( pure ...

  2. › wiki › TaiwanTaiwan - Wikipedia

    Taiwan, [II] [n] officially the Republic of China (ROC), [I] [o] is a country [31] in East Asia.It is located at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northeast, and the Philippines to the south. to the south.

  3. This is a list of semiconductor fabrication plants.A semiconductor fabrication plant is where integrated circuits (ICs), also known as microchips, are manufactured.They are either operated by Integrated Device Manufacturers (IDMs) who design and manufacture ICs in-house and may also manufacture designs from design-only (fabless firms), or by Pure Play foundries, that manufacture designs from ...

  4. › wiki › Tesla_coilTesla coil - Wikipedia

    • Operation
    • History
    • Modern-Day Tesla Coils
    • Practical Aspects of Design
    • Applications
    • Health Issues
    • See Also

    A Tesla coil is a radio frequency oscillator that drives an air-core double-tuned resonant transformer to produce high voltages at low currents. Tesla's original circuits as well as most modern coils use a simple spark gap to excite oscillations in the tuned transformer. More sophisticated designs use transistor or thyristor switches or vacuum tube...

    Electrical oscillation and resonant air-core transformer circuits had been explored before Tesla. Resonant circuits using Leyden jars were invented beginning in 1826 by Felix Savary, Joseph Henry, William Thomson, and Oliver Lodge. and Henry Rowland built a resonant transformer in 1889. Elihu Thomson invented the Tesla coil circuit independently at...

    Modern high-voltage enthusiasts usually build Tesla coils similar to some of Tesla's "later" 2-coil air-core designs. These typically consist of a primary tank circuit, a series LC (inductance-capacitance) circuit composed of a high-voltage capacitor, spark gap, and primary coil; and the secondary LC circuit, a series-resonant circuit consisting of...

    High voltage production

    A large Tesla coil of more modern design often operates at very high peak power levels, up to many megawatts (millions of watts, equivalent to thousands of horsepower). It is therefore adjusted and operated carefully, not only for efficiency and economy, but also for safety. If, due to improper tuning, the maximum voltage point occurs below the terminal, along the secondary coil, a discharge (spark) may break out and damage or destroy the coil wire, supports, or nearby objects. Tesla experime...

    Today, although small Tesla coils are used as leak detectors in scientific high-vacuum systems and igniters in arc welders,their main use is entertainment and educational displays.

    The high-voltage radio frequency (RF) discharges from the output terminal of a Tesla coil pose a unique hazard not found in other high-voltage equipment: when passed through the body they often do not cause the painful sensation and muscle contraction of electric shock, as lower frequency AC or DC currents do. The nervous system is insensitive to c...

  5. › wiki › WattWatt - Wikipedia

    • Overview
    • Origin and Adoption as An Si Unit
    • Multiples
    • Conventions in The Electric Power Industry
    • Radio Transmission
    • Distinction Between Watts and watt-hours
    • See Also
    • External Links

    When an object's velocity is held constant at one metre per second against a constant opposing force of one newton, the rate at which workis done is one watt. 1. 1 W = 1 J / s = 1 N ⋅ m / s = 1 k g ⋅ m 2 ⋅ s − 3 {\\displaystyle \\mathrm {1~W=1~J{/}s=1~N{\\cdot }m{/}s=1~kg{\\cdot }m^{2}{\\cdot }s^{-3}} } In terms of electromagnetism, one watt is the rate...

    The watt is named after the Scottish inventor James Watt. The unit name was proposed initially by C. William Siemens in August 1882 in his President's Address to the Fifty-Second Congress of the British Association for the Advancement of Science. Noting that units in the practical system of units were named after leading physicists, Siemens propose...


    1. The sound intensity in water corresponding to the international standard reference sound pressure of 1 μPa is approximately 0.65 aW/m2.


    1. Powers that are measured in femtowatts are typically found in references to radio and radar receivers. For example, meaningful FM tuner performance figures for sensitivity, quieting and signal-to-noise require that the RF energy applied to the antenna input be specified. These input levels are often stated in dBf (decibels referenced to 1 femtowatt). This is 0.2739 microvolts across a 75-ohm load or 0.5477 microvolt across a 300-ohm load; the specification takes into account the RF input i...


    1. Powers that are measured in picowatts are typically used in reference to radio and radar receivers, acoustics and in the science of radio astronomy. One picowatt is the international standard reference value of sound powerwhen this quantity is expressed as a level in decibels.

    In the electric power industry, megawatt electrical (MWe or MWe) refers by convention to the electric power produced by a generator, while megawatt thermal or thermal megawatt (MWt, MWt, or MWth, MWth) refers to thermal power produced by the plant. For example, the Embalse nuclear power plant in Argentina uses a fission reactor to generate 2109 MWt...

    Radio stations usually report the power of their transmitters in units of watts, referring to the effective radiated power. This refers to the power that a half-wave dipole antenna would need to radiate to match the intensity of the transmitter's main lobe.

    The terms power and energy are closely related but distinct physical quantities. Power is the rate at which energy is generated or consumed and hence is measured in units (e.g. watts) that represent energy per unit time. For example, when a light bulb with a power rating of 100W is turned on for one hour, the energy used is 100 watt hours (W·h), 0....

    Borvon, Gérard. "History of the electrical units".
    Nelson, Robert A. (February 2000). The International System of Units: Its History and Use in Science and Industry. Via Satellite. ATI courses.
  6. Information and communications technology (ICT) is an extensional term for information technology (IT) that stresses the role of unified communications [1] and the integration of telecommunications (telephone lines and wireless signals) and computers, as well as necessary enterprise software, middleware, storage and audiovisual, that enable users to access, store, transmit, understand and ...

  7. › wiki › IP_CodeIP code - Wikipedia

    The IP code or ingress protection code indicates how well a device is protected against water and dust. It is defined by the International Electrotechnical Commission (IEC) under the international standard IEC 60529 which classifies and provides a guideline to the degree of protection provided by mechanical casings and electrical enclosures ...

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