Course Duration: 90 Days 90 Minute Periods

Course Outline

Electronics 2

Course duration: 90 days – 90 minute periods

Course description: The Electronics 2 course is designed for Junior and Senior students who have completed the Tech Ed Prep course in basic electronic concepts. Students will review the material in Tech Ed Prep and examine additional electronic components and circuitry. The theory and math will take off where the introductory course left off. Emphasized will be electronic lab experiments as well as project construction techniques.

Course Outline:

A. Introduction a. Electronics career and course overview b. Course procedures c. Grading parameters d. Course description e. Course requirements

B. Electronics Safety a. Electrical hazards in the home and in industry b. Safe working procedures c. Physiological effects of electrical shock d. First aid for shock victims

C. Electricity: description and definition a. Electron theory b. Charges c. Conductors d. Insulators e. Potential – Voltage f. Current – Amperes g. Resistance – Ohms h. Electrical circuits

Tech Ed Prep Course Review

D. Ohm’s Law a. What is Ohm’s Law b. How is Ohm’s Law used c. Practice Ohm’s Law worksheets and test d. Ohm’s Law Experiment

E. Basic soldering skills a. Structure of solder b. Soldering and de-soldering equipment c. Tinning a wire d. Soldering solid wire e. Securing wires to terminals f. The Western Union splice g. Pigtail connections h. Tap or vampire splice i. Soldering on printed circuit boards j. Soldering practice project

F. Series Circuits a. Series circuit theory b. Series - parallel circuits c. Identifying series circuits d. Voltage drops e. Total resistance f. Series circuit applications g. Voltage dividers h. Determining unknown values

G. Resistor Fundamentals a. Types of resistors b. Resistor color code c. Resistor color code practice

H. Electronic Device Construction a. Safety considerations b. Semiconductor identification c. Heat sinking components d. Identifying capacitors e. Lead preparation f. Installation of components on printed circuit boards g. Project testing h. Enclosure construction i. Project completion

I. Multimeters a. Analog and digital multimeters b. Uses of multimeters c. Safety when using multimeters d. Advantages and disadvantages of analog and digital meters e. Reading the dial face on the Simpson 360 f. Making voltage measurements g. Making current measurements h. Making resistance measurements i. Special meter functions j. Care of multimeters

J. Series Circuit construction and Experiment a. Building a series resistive circuit b. Calculating total resistance c. Calculating current flow d. Calculating voltage drops across each component e. Using the Simpson 360 multimeter to measure values f. Conclusions

K. Electronic project construction a. Resistor color code b. Component identification c. Soldering to PCBs d. Project construction, building the battery tester e. Project testing and evaluation

L. Basic House Wiring a. AC power production b. Power transmission c. Service entrance d. Meter box e. Circuit breaker box f. Branch circuits g. Wiring single pole switch lighting circuits h. Wiring a duplex receptacle i. Wiring a 3-way switch circuit

Electronics 2 Course Content

J. Parallel DC Circuits a. Definition of a parallel circuit b. Identifying parallel circuits c. Comparing Parallel and series circuits d. Parallel circuit analysis

M. Parallel circuit experiment a. Parallel circuit construction b. Parallel circuit experiment c. Conclusions N. Power a. Definition of electrical and mechanical power b. Watt’s Law c. Reading an electric meter d. Circuit analysis involving power

O. Sources of Electricity a. Magnetism b. Chemical c. Heat d. Light e. Pressure f. Friction

P. Electromagnetism a. Electromagnets b. Left had rule c. Strength of electromagnets d. Uses of electromagnetism

Q. Alternating current a. The sine wave b. Frequency c. Amplitude d. Peak voltage e. Peak to Peak voltage f. Average voltage g. Root means square voltage h. Phase i. Waveform shape j. Power factor

R. Transformers a. How transformers work b. Step-Up / Step-Down c. Turns ratio d. Transformer problems e. Transformer losses

S. Capacitance a. Construction of capacitors b. Capacitance c. Factors affecting capacitance d. Types of capacitors e. Capacitor in series f. Capacitors in parallel

T. Inductance a. Inductors b. Counter EMF c. Coils d. Measuring inductance U. RL and RC time constants a. Use of time constants b. Current lags in RL circuits c. Voltage lags in RC circuits d. Inductive reactance e. Capacitive reactance

V. Diodes a. Valence electrons b. Covalent bonds c. Doping d. PN junction e. Hole flow f. Reverse bias g. Special diodes

W. Vacuum Tubes a. Vacuum tube diodes b. Thermionic emissions c. Vacuum tube power supplies d. Triode vacuum tubes e. Tetrode vacuum tubes f. Pentode vacuum tubes g. Multipurpose tubes h. Cathode ray tubes i. Fleming’s valve

X. Transistors a. How transistors work b. Types of transistors PNP - NPN c. Doping d. Hole current e. Amplification f. Advantages of transistors

Y. Power supplies a. Half wave rectification b. Full wave rectification c. Full wave bridge rectification d. Filtration e. Regulation3

Student Skills

The student will be able to:

 Describe electricity, its characteristics and uses

 Demonstrate safe operations and procedures while working with electricity

 Complete simple Ohm’s Law calculations solving for voltage, current and

resistance

 Produce accurate, clean soldered connections between wires, connectors

and on printed circuit boards.

 Identify common electronic components both physically and by their

schematic symbol.

 Demonstrate common procedures to build and repair electronic circuits

 Identify series circuits and solve simple Ohm’s law problems involving

series circuits

 Use a multimeter to test circuits for voltage, current, resistance and

continuity.

 Identify and solve parallel circuit problems

 Describe a sine wave and identify various measurements and wave

parameters

 Draw the schematic symbol of a capacitor and describe how it work as

well as what it’s used for

 Draw an inductor and describe the left hand rule

 Explain the operation of a transformer  Describe diode rectification characteristics and uses

 Describe how transistors operate explaining hole flow

 Explain the difference between half wave, full wave and full wave bridge

power supplies

Student Skills

1. Examinations

2. Evaluation of completed electronic projects and observation of work

habits.

3. Evaluation of notebook

4. Written worksheets

5. Final exam