Power Supplies

ALSO CALLED: Electricity, Generators, Power Conditioners, Power Sources
DEFINITION: Standby power is electrical power that a device consumes when not in present use, but plugged in to a source of power and ready to be used. Standby power consumption is the amount of such power that is used even though the power drainage is not apparent. The terms apply to appliances such as television sets, computers, computer peripherals, and various other devices, including those that use battery  … 
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POWER SUPPLIES DEFINITION (continued): …  chargers. Standby power is expressed in watts (W).An increasing number and variety of consumer devices incorporate standby features. Often a device is in standby mode when the consumer thinks it is completely powered-down. Placing the power switch in the OFF position does not guarantee that a device consumes no power. The only way an everyday consumer can be sure a device is not drawing power is to unplug it from the utility outlet.Standby power, over time, adds to the energy expense incurred by a household or business. Consider a home with the following appliances in standby operation: two television … 
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