Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

MEM30026A Mapping and Delivery Guide
Select and test components for simple electronic switching and timing circuits

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MEM30026A - Select and test components for simple electronic switching and timing circuits
Description This unit covers selecting common electronic components to suit basic applications, and performing basic electronic calculations.
Employability Skills This unit contains employability skills.
Learning Outcomes and Application All work carried out under supervision.Band: 0Unit Weight: 0
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites Path 1MEM12024A Perform computations
Competency Field Engineering technician
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Perform basic electronic calculations
  • Calculations are performed for a given circuit voltage, current, resistance and d.c. power.
  • The period, frequency, RMS, peak and peak-to-peak voltages are calculated for a given repetitive waveform.
  • Waveform calculations are verified using an oscilloscope.
       
Element: Select, test and use simple electronic switching circuits
  • Transistors required for simple switching applications are selected.
  • The circuit is wired up and tested using suitable prototyping equipment.
  • Calculations are verified.
       
Element: Select, test and use simple electronic timing circuits
  • The appropriate timing circuit is selected and the time constant is calculated.
  • The circuit is wired up and tested using suitable prototyping equipment.
  • Calculations are verified.
       
Element: Select common power supplies and power control devices
  • Appropriate rectification is selected.
  • Appropriate power control devices are selected.
       


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

A person who demonstrates competency in this unit must be able to select and test components for simple electronic switching and timing circuits. Competency in this unit cannot be claimed until all prerequisites have been satisfied.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.

Context of and specific resources for assessment

This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate.

This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with selecting and testing components for simple electronic switching and timing circuits, or other units requiring the exercise of the skills and knowledge covered by this unit.

Method of assessment

Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.

Guidance information for assessment

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Required skills

Look for evidence that confirms skills in:

using a multimeter to measure a.c. and d.c. voltages, resistance and capacitance

setting an oscillator/signal generator to a specified frequency and amplitude

using an oscilloscope to record wave shapes and to measure the peak-to-peak voltage and the period of any repetitive waveform

identifying sine waves, cosine waves, square waves, triangular waves and sawtooth waves

communicating

planning

assessing

problem solving

reading, interpreting and following information on written job instructions, specifications, standard operating procedures and other applicable reference documents

undertaking numerical operations, geometry and calculations/formulae within the scope of this unit

checking for conformance to specifications

checking and clarifying task related information

Required knowledge

Look for evidence that confirms knowledge of:

electronic concepts and units

voltage

current

resistance and capacitance

power

frequency and period

common electronic instruments

multimeters

power supplies

signal generators

oscilloscopes

timing circuits and oscillators

semiconductor devices

diodes (power, zener, LEDs)

transistors

linear integrated circuits

power control devices (triacs, SCRs)

power supplies

hazards and control measure associated with selecting and test components for simple electronic switching and timing circuits, including housekeeping

safe work practices and procedures

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Simple electronic switching circuit

Includes simple transistor switches and simple linear integrated circuits

Suitable prototyping equipment

Includes breadboards

Appropriate timing circuit

Includes simple RC timing circuit, type 555 integrated circuit, etc.

Appropriate rectification

May include half or full wave

Power control devices

May include zener diodes and LEDs. SCRs and triacs

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Calculations are performed for a given circuit voltage, current, resistance and d.c. power. 
The period, frequency, RMS, peak and peak-to-peak voltages are calculated for a given repetitive waveform. 
Waveform calculations are verified using an oscilloscope. 
Transistors required for simple switching applications are selected. 
The circuit is wired up and tested using suitable prototyping equipment. 
Calculations are verified. 
The appropriate timing circuit is selected and the time constant is calculated. 
The circuit is wired up and tested using suitable prototyping equipment. 
Calculations are verified. 
Appropriate rectification is selected. 
Appropriate power control devices are selected. 

Forms

Assessment Cover Sheet

MEM30026A - Select and test components for simple electronic switching and timing circuits
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

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Assessment Record Sheet

MEM30026A - Select and test components for simple electronic switching and timing circuits

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

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