# watt

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## watt

[for James WattWatt, James,
1736–1819, Scottish inventor. While working at the Univ. of Glasgow as an instrument maker, Watt was asked to repair a model of Thomas Newcomen's steam engine.
], abbr. W, unit of power, or work done per unit time, equal to 1 joule per second. It is used as a measure of electrical and mechanical power. One watt is the amount of power that is delivered to a component of an electric circuit when a current of 1 ampere flows through the component and a voltage of 1 volt exists across it. The derivative units are kilowatt (1,000 W; kW) and megawatt (1,000,000 W; MW), used in electric power systems, and milliwatt (0.001 W; mW) and microwatt (0.000001 W; μW), used in electronics.

## watt

(wot) Symbol: W. The SI unit of power, defined as the power resulting from the dissipation of one joule of energy in one second.

## watt

[wät]
(physics)
The unit of power in the meter-kilogram-second system of units, equal to 1 joule per second. Symbolized W.

## watt

A unit of power; the power required to do work at the rate of 1 joule per second, which is equal to the power dissipated in an electric circuit in which a potential difference of 1 volt causes a current of 1 ampere to flow.

## watt

the derived SI unit of power, equal to 1 joule per second; the power dissipated by a current of 1 ampere flowing across a potential difference of 1 volt. 1 watt is equivalent to 1.341 × 10--3 horsepower.

## Watt

James. 1736--1819, Scottish engineer and inventor. His fundamental improvements to the steam engine led to the widespread use of steam power in industry

## watt

The standard unit of measurement of electrical power. One watt is one ampere of current flowing at one volt. Watts are typically rated as AMPS x VOLTS or VOLT-AMP (V-A). However, this rating is only equivalent to watts when it applies to devices that absorb all the energy, such as electric heating coils or incandescent light bulbs. With computer power supplies, the actual watt rating is only 60% to 70% of the VOLT-AMP rating.
References in periodicals archive ?
With research essentially complete, Foster said NanoWatt is seeking an initial seed investment of \$500,000.
Tags / Keywords: Microchip, PIC, 8-bit, microcontroller, PIC18, MCHP, XLP, eXtreme Low Power, nanoWatt, mTouch, capacitive, touch sensing, user interface, MPLAB, PIC18F87K90, PIC18FXXK90, LCD
Tags / Keywords: Microchip, MCHP, PIC, 8-bit, microcontroller, PIC18, MCHP, XLP, eXtreme Low Power, nanoWatt, mTouch, capacitive, touch sensing, user interface, MPLAB, PIC18FXXK22, K22
Tags / Keywords: Microchip, MCHP, PIC, MCU, microcontroller, PIC16, 8-bit, MPLAB, HI-TECH, PICkit, REAL ICE, mTouch, touch sensing, capacitive, user interface, ICD 3, LCD, motor control, PIC16F1933, PIC16F1934, PIC16F1936, PIC16F1937, PIC16F1938, PIC16F1939, PIC16F1946, PIC16F1947, F1 Evaluation Platform, DM164130-3energy efficient, PIC12F1822, PIC16F1823, PIC16F1824, PIC16F1825, PIC16F1826, PIC16F1827, PIC6F1828, PIC16F1829, PIC16F1826, nanoWatt XLP, extreme low power
The "LF" family members feature nanoWatt XLP technology for extremely low sleep currents, as well as new enhancements that reduces the active power consumption by as much as 50%.
Tags / Keywords: Microchip, MCHP, PIC, MCU, microcontroller, PIC16, 8-bit, MPLAB, HI-TECH, PICkit, REAL ICE, mTouch, touch sensing, capacitive, energy efficient, PIC12F1822, PIC16F1823, PIC16F1824, PIC16F1825, PIC16F1826, PIC16F1827, PIC6F1828, PIC16F1829, PIC16F1826, nanoWatt XLP, extreme low power
nanoWatt XLP technology enables market-leading current consumption, improving overall energy efficiency and/or extending battery life in a broad range of applications.
Tags / Keywords: Low Power, Low Power MCU, Low Power Microcontroller, Deep Sleep, nanoWatt, nanoWatt XLP, PIC, PIC24, PIC24F, 16-bit, 16-bit MCU, 16-bit Microcontroller, Battery, Battery Powered, Portable, Handheld, Cordless, Wireless, Energy Harvesting, Remote Sensor Network, Sealed Batteries, 8-bit, MCU, Microcontroller, PIC Microcontroller, USB 2.
NASDAQ: MCHP), a leading provider of microcontroller and analog semiconductors, today announced two new families of 16-bit PIC24F microcontrollers (MCUs)--one with USB functionality and one for general-purpose applications--both of which feature nanoWatt XLP extreme low power technology, small packages and mTouch[TM] capacitive touch sensing.
Microchip expanded the family of 8-bit PIC18 'K' devices that feature nanoWatt XLP technology, adding 5V operation.
Microchip has a broad offering of more than 50 8- and 16-bit PIC([R]) microcontrollers with nanoWatt XLP eXtreme Low Power technology, for the world's lowest sleep currents--as low as 20 nA--enabling battery life of up to 20 years.
Many SX1211 designs use these PIC MCUs because they offer great performance and very low power consumption, some with sleep currents as low as 20 nA via Microchip's nanoWatt XLP extreme low power technology.

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