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Objectives




                                      Lesson 3: Basic Circuits


               Exploring electronics can be a fun                 Controlling voltage in a circuit is

               and     rewarding       experience.      In        very important, so we'll explore
               workbook 1, we'll cover some                       voltage dividers as well as taking a
               basics of electronics as well as                   close look at voltage regulators.
               explore analog circuitry to get a                  Some other components we'll be
               better     understanding         of    how         building experiments with are:
               analog circuits work.
                                                                  Operational Amplifier (Op-Amp for
               We'll start our journey by learning                short): An amplifier take a input
               about the buzzer, light emitting                   signal and boosts it so if can drive
               diodes          (LEDs),         resistors,         a device or components that
               capacitors, and other electronic                   requires a higher strength signal. A
               parts by building circuits that use                good example of this is your stereo
               these components. I hope you like                  system, the signal going to the
               to make noise because we are                       speakers are amplified so that the

               going to build a lot of circuits that              speakers can produce the sound.
               generate all kinds of sounds.
                                                                  Analog Comparator: An analog
               Of course, building circuit without                comparator compares two different

               understanding             how           the        voltages and produces an output
               components work isn't as much                      based on those two inputs.
               fun, so we'll also take a close look
               at resistors, capacitors, along with               Electronics are a lot of fun and
               other electronic components.                       understanding electronics will help
                                                                  you understand the world around
               The 555 timer is a well known and                  you. So, enough talk, let's get
               respected timer IC that we'll be                   started building some cool circuits!
               getting know very well. We'll
               explore a lot of different ways to
               use the 555 timer by creating a lot
               of circuits that take advantage of
               the 555 timer's versatility.










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