SHS3 Applied Technology · Semester 2 Week 16: Electronic Components and Circuits

Lesson notes

Learning Objectives

Indicator: 3.5.2.LI.4 - Apply the principle of operation of op-amps in designing circuits

By the end of the lesson, learners can:

Explain how the 741 and 4558 operational amplifiers (op-amps) operate based on their input, output, and feedback terminals.
Design an inverting amplifier circuit using the 741 op-amp and calculate its voltage gain.
Design a non-inverting amplifier circuit using the 4558 op-amp and calculate its voltage gain.
Design and simulate a comparator circuit using an op-amp and predict its output state.
Design a summing amplifier using the 741 and explain how multiple inputs are combined at the output.

Sign in with your phone number to read the full note and download the GES plan - free.

Sign in with phone number

Curriculum details

Strand: Electrical and Electronic Technology (Strand 5)
Sub-strand: Electronic Components and Circuits (5.2)
Content standard: 3.5.2.CS.1 - 3.5.2.CS.1 Demonstrate knowledge and understanding of electronic components and use them to design and construct electronic circuits. 3.5.2.LO.1 Demonstrate knowledge and understanding of electronic components and use them to design and construct electronic circuits.
Indicator: 3.5.2.LI.4 - Apply the principle of operation of op-amps in designing circuits
Suggested placement: Semester 2, Week 16 (Week 36 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.
Source document note: The official curriculum document has a fault in this entry, so the curriculum text above is transcribed exactly as printed:

content standard text - p.190: prints the content-standard code as "2.5.2.CS.1"; filed under the section's own 3.5.2.CS.1
content standard text - p.190: prints the learning-outcome code as "2.4.2.LO.1"; filed under the section's own 3.5.2.LO.1
content standard text - p.190: the front page prints "Strand 4." for Electrical and Electronic Technology inside the YEAR THREE section, where Year 3's strand 4 is Wood Technology (printed pp.164 and 170); the Contents page (printed p.6) prints "STRAND 5. ELECTRICAL AND ELECTRONIC TECHNOLOGY" for Year 3 and Year 2 numbers the same strand 5, so the row is filed under strand 5
indicator text - p.190: prints the learning-indicator code as "2.5.2.LI.4"; filed under the section's own 3.5.2.LI.4
exemplars - p.190: prints the assessment code as "2.5.2.AS.4"; filed under the section's own 3.5.2.AS.4
Curriculum reference: NaCCA curriculum document, p. 190

Exemplars (from the NaCCA curriculum)

Focal Area: Designing with OP-AMPS
1. Principles of Operations of operational amplifiers 741, 4558
2. Designing circuits with Integrated Circuits Pedagogy
Collaborative Learning: Work in pairs to; Explain how each IC can be connected in a circuit for a typical function e.g. comparator, Inverting amplifiers
Independent project work: Task learners individually to Design and construct inverting and non-inverting amps and encourage them to really do independent work as well as exhibiting a sense of responsibility when working with tools in the workshop (in terms theft).
Project-based learning and collaboration: Engage learners in mixed-gender groupings to: Design and simulate comparators, inverting and non-inverting amplifiers, and summing amplifiers with 741 and 4558 op-amps. using Multisim NB: Ensure all learners participate in all varieties of practical activities and project work given and also when practical wiring is being carried out, girls and the physically challenged should not be left out. If possible, some of them should be made group leaders. Learners who may be physically challenged should be given enough time to complete the project work

Assessment (3.5.2.AS.4). 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
- Electronic Components
- multimeters
- the use of the internet