Electrical and Electronics: Module 17

Module 17A: Introduction to Electronic Components (Core)

Suggested time: 10 - 20 hours

Level: Introductory

Prerequisites: Modules 2A, 19A

Foundational Objectives

To use appropriate terminology for electricity or electronics in context.
To be knowledgeable about the various principles and characteristics of electricity and electronics.
To test and evaluate the integrity of electrical and electronic components.
To demonstrate the safe use and knowledge of meters and hand and power tools used in the electrical industry.
To make and interpret meter readings.

Common Essential Learnings Foundational Objectives

To understand and apply the basic principles of electronics. (TL, CCT)
To make various calculations and observations related to electronics. (NUM)
To use electrical and electronics terminology in context. (COM)

Learning Objectives	Notes
RESISTORS
17.1 Describe wire wound, carbon and metal film resistors. (COM)	Examine the different types of resistors and note how the value of the resistance is indicated on the resistor.
17.2 To observe and explain how colour code and physical size are used in identifying the value of a resistor. (COM, IL)	Decode resistor values using the colour code and physical size.
17.3 To calculate and verify the equivalent resistance of resistors connected in series. (NUM)	With no voltage applied, connect at least two resistors in series. Calculate the equivalent resistance of the series circuit. Measure the equivalent resistance using an ohmmeter.
17.4 To calculate and verify the equivalent resistance of resistors connected in parallel. (NUM)	With no voltage applied, connect at least two resistors in parallel. Calculate the equivalent resistance of the parallel circuit. Measure the equivalent resistance using an ohmmeter.
17.5 To calculate and verify the equivalent resistance of resistors connected in series-parallel. (NUM)	With no voltage applied, connect at least one resistor in series with at least two resistors in parallel. Calculate the equivalent resistance of the series-parallel circuit. Measure the equivalent resistance using an ohmmeter.
CAPACITORS
17.6 To draw a schematic symbol for a capacitor. (CCT)	Draw and label the symbols for polarized and non-polarized capacitors. List examples of the types of polarized capacitors.
17.7 To explain the ratings (capacitance and voltage) of a capacitor. (COM)	Examine the operating characteristics of a capacitor.
17.8 Explain the physical characteristics that determine capacitance. (COM)	Examine different sizes of capacitors. Take a capacitor apart and observe the following: plate area, spacing between plates, type of dielectric.
17.9 To calculate and verify the equivalent capacitance of capacitors connected in series. (NUM)	With no voltage applied, connect at least two capacitors in series. Calculate the equivalent capacitance. Measure the equivalent capacitance using a capacitance meter.
17.10 To calculate and verify the equivalent capacitance of capacitors connected in parallel. (NUM)	With no voltage applied, connect at least two capacitors in parallel. Calculate the equivalent capacitance. Measure the equivalent capacitance using a capacitance meter.
17.11 To calculate and verify the equivalent capacitance of capacitors connected in series-parallel. (NUM)	With no voltage applied, connect at least one capacitor in series with at least two capacitors in parallel. Calculate the equivalent capacitance. Measure the equivalent capacitance using a capacitance meter.

Module 17B: Introduction to Electronics, Diodes (Optional)

Suggested time: 5 - 8 hours

Level: Intermediate

Prerequisites: Modules 2A,17A

Learning Objectives

Notes

SEMI-CONDUCTOR DIODES

17.12 Draw the symbol for a diode. (COM)

Draw and explain the parts of a diode. Explain polarity and the direction of electron flow through a diode.

17.13 To identify different diodes and determine the ratings.
Examine a diode and identify the anode and cathode.

Use a cross-reference manual to determine the operating characteristics of the diode.

17.14 To meter test a diode. (TL)
Test a diode using an ohmmeter.

Test a diode using a multimeter set to the "diode test" position.

Explain the difference between the junction resistance reading shown on the ohmmeter with the junction breakdown voltage shown on the multimeter.

List precautions necessary when using a meter to check a diode.

17.15 Describe the basic function of a diode. (COM))
Connect a diode in a low voltage DC circuit including an output device such as a lamp and observe the effect of changing the direction of orientation of the diode.

Connect a diode in a low voltage AC circuit including an output device such as a lamp and observe the effect of changing the direction of orientation of the diode.

17.16 Explain the rating and limitations of a diode.

Interpret data sheets to explain where different types of diodes could be used.

Module 17C: Introduction to Electronics, Rectifiers (Core for Electronics)

Suggested time: 5 - 8 hours

Level: Intermediate

Prerequisites: Modules 2A, 17B

Learning Objectives

Notes

17.18 To describe the conditions required to turn on or turn off a Silicon Controlled Rectifier (SCR).

Have students set up a circuit using an SCR.

17.19 To list two applications of the SCR.

Identify the SCR in a schematic diagram and determine how it is used in the circuit.

Module 17D: Introduction to Electronics, Rectifier Circuits (Core for Electronics)

Suggested time: 5 - 10 hours

Level: Advanced

Prerequisites: Modules 2A, 17C

Learning Objectives

Notes

17.20 To explain the operation of a half -wave rectifier. (COM)
Wire a diode into a circuit to give half-wave rectification.

With the help of a meter, determine output voltages (multimeter, oscilloscope).

Draw a schematic circuit of the half-wave rectifier circuit.

17.21 To explain the operation of a full-wave rectifier. (COM)
Draw a schematic diagram of a full-wave rectifier circuit.

Wire a full-wave rectifier circuit.

With the help of a multimeter and oscilloscope determine output voltages.

17.22 To describe the effect of a capacitor on the output of a power supply.

Wire a capacitor into a rectifier circuit to give elementary filtering.

Learning Objectives	Notes
SEMI-CONDUCTOR DIODES
17.12 Draw the symbol for a diode. (COM)	Draw and explain the parts of a diode. Explain polarity and the direction of electron flow through a diode.
17.13 To identify different diodes and determine the ratings.	Examine a diode and identify the anode and cathode. Use a cross-reference manual to determine the operating characteristics of the diode.
17.14 To meter test a diode. (TL)	Test a diode using an ohmmeter. Test a diode using a multimeter set to the "diode test" position. Explain the difference between the junction resistance reading shown on the ohmmeter with the junction breakdown voltage shown on the multimeter. List precautions necessary when using a meter to check a diode.
17.15 Describe the basic function of a diode. (COM))	Connect a diode in a low voltage DC circuit including an output device such as a lamp and observe the effect of changing the direction of orientation of the diode. Connect a diode in a low voltage AC circuit including an output device such as a lamp and observe the effect of changing the direction of orientation of the diode.
17.16 Explain the rating and limitations of a diode.	Interpret data sheets to explain where different types of diodes could be used.

Learning Objectives	Notes
17.18 To describe the conditions required to turn on or turn off a Silicon Controlled Rectifier (SCR).	Have students set up a circuit using an SCR.
17.19 To list two applications of the SCR.	Identify the SCR in a schematic diagram and determine how it is used in the circuit.

Learning Objectives	Notes
17.20 To explain the operation of a half -wave rectifier. (COM)	Wire a diode into a circuit to give half-wave rectification. With the help of a meter, determine output voltages (multimeter, oscilloscope). Draw a schematic circuit of the half-wave rectifier circuit.
17.21 To explain the operation of a full-wave rectifier. (COM)	Draw a schematic diagram of a full-wave rectifier circuit. Wire a full-wave rectifier circuit. With the help of a multimeter and oscilloscope determine output voltages.
17.22 To describe the effect of a capacitor on the output of a power supply.	Wire a capacitor into a rectifier circuit to give elementary filtering.