Electronic Components… · SHS2 Applied Technology

Lesson notes

Learning Objectives

Indicator: 2.5.2.LI.8 - Describe the types of control systems and give practical examples

By the end of the lesson, learners can:

Define a control system and identify its basic components from a block diagram.
Differentiate between open-loop and closed-loop control systems, citing at least two practical examples of each.
Draw and label the block diagrams of both open-loop and closed-loop control systems.
Explain the function of each block in a control system and how feedback affects system behaviour.
Justify, with reasoning, why a given appliance (e.g., a refrigerator) uses a closed-loop system rather than an open-loop system.

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Curriculum details

Strand: Electrical and Electronic Technology (Strand 5)
Sub-strand: Electronic Components and Circuits (5.2)
Content standard: 2.5.2.CS.1 - 2.5.2.CS.1 Demonstrate knowledge and understanding of Digital Electronics 2.5.2.LO.1 Demonstrate knowledge and understanding of electronic components and use them to design and construct electronic circuits.
Indicator: 2.5.2.LI.8 - Describe the types of control systems and give practical examples
Suggested placement: Semester 2, Week 18 (Week 38 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: NaCCA curriculum document, p. 123

Exemplars (from the NaCCA curriculum)

Collaborative Learning/Talk for learning: With the use of the internet, engage learners in mixed ability groups to undergo the following activities:
- Explain control systems.
- Outline the types of control systems and give examples i.e. Open loop e.g. Water heater, Electric Bulb, washing machine etc. and closed loop e.g. Toaster, refrigerator etc.
- Through a whole class discussion, task learners to present their findings.
Experiential Learning/Project -based learning: Engage learners to work in mixed gender groups to:
- Draw the block diagrams of the types of control systems e.g. open loop and closed loop.
- Outline the functions of each block.

Assessment (2.5.2.AS.8). The document marks these depth-of-knowledge levels for this indicator: Level 2 Skills of conceptual understanding; Level 3 Strategic reasoning.

Teaching and Learning Materials:
- Computers installed with multism software
- Resistors, Capacitors, Inductors
- multimeters
- the use of the internet