Transcript
My engineering education challenged me to reach for the stars, and one day I found myself standing on the Moon.
Gene Cernan, Commander of Appollo 17 and the last man on the Moon
Electronics is
• The branch of science and technology that deals with controlling electricity.
What is electricity?• The word electricity comes from the Latin electrum, which comes from the Greek word ἤλεκτρον (elektron), meaning amber.
• Origin of the Greek word is unknown, but may have come from Phoenician word elēkrŏn, meaning ‘shining light’.
• Phoenician is similar to Hebrew and in Hebrew, el means God.
• The original meaning of electricity may literally be ‘power of God’.
Electric vs. Electronic
• Electric circuits and systems are used to manage power.
• Electronic circuits and systems are used to manage information.
Why is electronics important?
• Moving objects have kinetic energy and can be used to do work, therefore, electricity can be used to do work for us.
• What do we use electricity for?
• What do we use electronics for?
Think of electronics like a tree
currentvoltage resistance
power
currentvoltage resistance
power
Last year we learned a lot about these 4 fundamental properties of electricity.
Ohm’s LawKirchhoff's Lawsseries circuitsparallel circuits
V=IRI=V/RR=V/IP=IV
currentvoltage resistance
powercomponents
currentvoltage resistance
powercomponentswires fuses
cables relaysconnectors inductorsresistors capacitors transducers switchesbatteries
diodestransistorsvacuume tubesSCRspiezoelectrioc sensorsoptoelectronics
We also learned about some components used to control these 4 fundamental properties and the tools needed to work with electronics.
We will learn more components this year.
currentvoltage resistance
powercomponents
circuits
currentvoltage resistance
powercomponents
circuitsOscillators AmplifiersMixersFiltersRectifiersTimersOp Amps
GatesEncoders & DecodersCountersFlip-flopsAnalog-Digital convertersDigital-Analog convertersMicroprocessors
Last year you learned to interpret circuitdiagrams and lay out circuits.
We will learn some common circuits used to combine components into useful tools.
currentvoltage resistance
powercomponents
circuits
systems
currentvoltage resistance
powercomponents
circuits
systems
communications
computers
industrialtest & measurement
biomedicalconsumer
audiovisual
currentvoltage resistance
powercomponents
circuits
systems
Understanding the fundamentals, the components and the circuits, enables you to understand, design, build, and repair electronic systems.
We will focus on powerand communication, 2systems that depend onAlternating Current (AC).
Electronics is• The branch of science and technology that deals
with controlling electricity.• Arguably the most important contributor to the
development of our modern world.• Of huge importance to modern communication,
energy, industry, medicine, travel, defense, entertainment, in short, our modern way of life.
• The largest single industry in the world.• An excellent career choice.• A mystery to most people, but not to you!• Lots and lots of fun!
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