Digital Electronics – City and Guilds

This Digital Electronics course is designed to give participants practical knowledge of the electronic circuitry used in the computer controlled equipment such as: photocopiers, cash registers, tablets, mobile phones and many other types of IT equipment.

Digital electronics involves the use of silicon chips (Integrated Circuits). The internal structure of a computer is to a large extent comprised of digital electronic circuits.

Learning Objectives include:

• Studying popular digital electronic gates and more advanced circuits.
• Building and fault-finding a range of digital electronic circuits.
• Using test equipment including multimeters, oscilloscopes, logic probes and pulsers to implement systematic fault-finding techniques.

Course Content

• Introduction to Electronics: Electric Current, OHMS Law, Insulation, Conduction and related Formulae. Resistor colour codes.
• Practical study of Digital I.C.s including AND, NAND, OR, NOR, X-OR, X-NOR, Inverter, Buffer, SR Latches and D-Latches and Flip-Flops.
• Oscillators, Multivibrators and 555 Timers. Switches and Switch De-bounce circuits and their applications.
• Numbering systems, TTL and CMOS technologies
• Counters, Counter Decoding Circuitry and Shift Registers
• A-D and D-A converters
• Digital Displays: LED and LCD, numeric and alphanumeric, operating currents, voltages and power requirements. Display decoders and drivers.
• Test Equipment: Practical use of Analogue and Digital Multimeters, Oscilloscopes, Logic probes, Logic Pulsers, etc.
• Fault-finding techniques: Diagnosing and rectifying faults on circuits built during course.
• Health & Safety, Care of Tools and instruments for assembly and repair

Certification

• City & Guilds of London Institute Digital Electronics 2 (Examination No. 7267-425). This examination consists of 1 written paper and 4 practical assignments. The qualification can be used as part of the requirement for City & Guilds Diploma in IT Systems Support (7267-24).
• On completion of the Course, having been successful in an examination, the participant will receive a Hi-Tech Training Certificate.