The aim of Electronic Workshop is to enable the student to acquire competency in the safe use of electronic laboratory test equipment and to acquire competency in constructing and testing electronic assemblies.The practical element of the Electronic Production subject is considered to be of great importance. Students gain valuable experience in physical component identification and the use of supplier catalogues in the component identification and ordering procedure. The skill of electronic soldering is developed in this subject which will play an important part in later project work. A major practical project is undertaken involving the assembly and test of a “trainer board” which is used in the Year 2 Digital Electronics subject and for later project work.
Health and Safety issues, electronic component identification including actives, passives and surface mount, component packaging, packaging styles, orientation of components, transistor lead identification, ordering of components. circuit diagrams. Describe the safety issues associated with the project in the written report
Electronic Soldering Theory:
soldering principals, solder alloys, phase diagrams, solderability, wetting and surface tension, fluxes, soldering irons.
Electronic Assembly Quality:
solder joint type, soldering acceptable requirements – hole mounted components, insulated wire connections, soldering to terminals, trimming leads, identification of solder joint defects, repair techniques.
Electro- Static Discharge:
ESD terminology, conductors and insulators, generating static, typical electrostatic voltages, triboelectric series, air ionisation, ESD and EOS damage prevention, ESD and Eos warning signals, anti static work stations, physical handling of ESD sensitive components and assemblies.
Environmental Issues :
The 5 Rs. Reuse, Reduce, Recycle, Recover and Refine. Describe the environmental impact of electronic production as part of a written report. Overview of the WEEE Directive, RoHS Directive. Overview of the Code of Ethics in Engineering as defined by engineers Ireland.
Circuit design, assembly and test on vero board and on patch board.
Assembly and test of a PCB assembly.
Health and safety issues in a laboratory environment and during the build and assembly of vero board/patch board and PCB boards. Describe the safety issues associated with the project in the written report
Test and Verification
Verification and debug techniques for electronic circuits. The use of electronic test equipment for verification and debug. Operation of the following equipment;Multimeter: Voltage, current, resistance measurements, range, o/l fuseDigital Oscilloscope. To measure DC, AC voltage, frequency, phase shift.Triggering, Autoscale, cursors and measurement. Single and dual channelmeasurements, grounding. x1, x10 attenuator probes, Calibration of probes.Function generator : Frequency , amplitude, dc offset, range, signal type mark-spaceratio, output impedance. Power supply: Voltage range, current limit, terminal configuration, dual setup.
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