EASA Part 66 Category B1 - Module 4B1 Electronic Fundamentals

EASA Part 66 Category B1 - Module 4B1 Electronic Fundamentals

Air Service Training Ltd (AST) is a wholly owned subsidiary of Perth College UHI, part of the University of the Highlands and Islands (UHI). AST remains a world leader in the field of Aviation training and has been since 1931, making it arguably the longest-established organisation of its kind.

The AST engineering training facilities are situated on the spacious Perth College UHI campus and also at Perth Airport, which is four miles north of 'The Fair City' of Perth in Central Scotland. It has an attractive rural location and is less than two hours flying time from London, while the major Scottish cities of Glasgow, Edinburgh and Dundee are all within an hour's drive.

This course is aimed for experienced engineers seeking a short theory based course.

You would study the following parts of the EASA Syllabus

Module 4 – Electronic Fundamentals

4.1 Semiconductors

4.1.1 Diodes

(a) Diode symbols;

Diode characteristics and properties;

Diodes in series and parallel;

Main characteristics and use of silicon controlled rectifiers (thyristors),

light emitting diode, photo conductive diode, varistor, rectifier diodes;

Functional testing of diodes.

(b) Materials, electron configuration, electrical properties;

P and N type materials: effects of impurities on conduction, majority and minority characters;

PN junction in a semiconductor, development of a potential across a PN junction in unbiased,

forward biased and reverse biased conditions;

Diode parameters: peak inverse voltage, maximum forward current,

temperature, frequency, leakage current, power dissipation;

Operation and function of diodes in the following circuits: clippers,

clampers,

full and half wave rectifiers, bridge rectifiers, voltage doublers and triplers;

Detailed operation and characteristics of the following devices: silicon controlled rectifier (thyristor),

light emitting diode, Schottky diode, photo conductive diode,

varactor diode, varistor, rectifier diodes, Zener diode.

4.1.2 Transistors

(a) Transistor symbols; 

Component description and orientation;

Transistor characteristics and properties

(b) Construction and operation of PNP and NPN transistors; 

Base, collector and emitter configurations;

Testing of transistors;

Basic appreciation of other transistor types and their uses;

Application of transistors: classes of amplifier (A, B, C);

Simple circuits including: bias, decoupling, feedback and stabilisation;

Multistage circuit principles: cascades, push-pull, oscillators,

multivibrators, flip-flop circuits.

4.1.3 Integrated Circuits

( a ) Description and operation of logic circuits and linear
circuits/operational amplifiers; 

(b) Description and operation of logic circuits and linear circuits;

Introduction to operation and function of an operational
amplifier used as: integrator, differentiator, voltage follower,
comparator;

Operation and amplifier stages connecting methods: resistive
capacitive, inductive (transformer), inductive resistive (IR), direct;

Advantages and disadvantages of positive and negative feedback.
4.2 Printed Circuit Boards Description and use of printed circuit boards.

4.3 Servomechanisms

(a) Understanding of the following terms: Open and closed loop systems, feedback, follow up, analogue transducers

Principles of operation and use of the following synchro
system components/features: resolvers, differential, control and
torque, trans-formers, inductance and capacitance transmitters;

(b) Understanding of the following terms: Open and closed loop, follow up, servomechanism, analogue, transducer, null, damping, feedback, deadband;

Construction operation and use of the following synchro
system components: resolvers, differential, control and torque,
E and I trans-formers, inductance transmitters, capacitance
transmitters, synchronous transmitters;

Servomechanism defects, reversal of synchro leads, hunting.