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What is Electrical Technology? n Electrical Technology is the study of the generation, application and distribution of electrical energy.
Branches of Electrical Technology n Electricity n Electronics
Electricity n The division of electrical technology where electricity is used to provide Motion, Light, and Heat n Common items: n Motors n Appliances n Lamps/Bulbs
Electronics n The division of electrical technology where electricity is used to provide control over other devices and process electrical signals. n Common items: n Radio n Television n CD Player / Ipod n Calculators n Computers
Electrical History The division of electricity, called electronics, at least modern electronics, began in the late 1940’s. Since then, electronics has split off into 2 categories: Analog & Digital. What happened in the 1940’s?
Analog Electronics n The category of electronics that processes “time Variable” electrical signals. Found in Radios and Televisions. 20 v Alternating Current Signal 20 v Time
Digital Electronics n The category of electronics that processes 2 levels of electricity: ON and Off. n The level on is equal to a 1 and the Off is Equal to a 0. n These level coincide with the Binary Number System
Digital Electronics OFF = 0 ON = 1
Digital Wave Applications: • Computers • Calculators • Digital Tuned Radios 1 0