Document ID: chunk:federal_register_of_legislation:F2025C00150:reg:1:p6
Version: federal_register_of_legislation:F2025C00150
Segment Type: reg
Provision Reference: reg 1 (pt 6/29)
Character Range: 111933–118417

2 phase and 3 phase alternators;
Three phase star and delta connections advantages and uses;
Permanent magnet generators.
3.18   AC motors                                                                                                                                                                                      —     2                                    2
Construction, principles of operation and characteristics of:
AC synchronous and induction motors both single and polyphase;
Methods of speed control and direction of rotation;
Methods of producing a rotating field: capacitor, inductor, shaded or split pole.

Module 4 Electronic fundamentals

                                                                                                                                                                                                                                         Level of knowledge for the category
A                                                                                                                                                                                                                                    B1  B2
4.1   Semiconductors
4.1.1   Diodes
(a)                                                                                                                                                                                                                                  —   2                                    2
    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)                                                                                                                                                                                                                                  —   —                                    2
    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, Shottky diode, photoconductive diode, varactor diode, varistor, rectifier diodes, Zener diode.
4.1.2   Transistors
(a)                                                                                                                                                                                                                                  —   1                                    2
    Transistor symbols;
    Component description and orientation;
    Transistor characteristics and properties;
(b)                                                                                                                                                                                                                                  —   —                                    2
    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)                                                                                                                                                                                                                                  —   1                                    —
    Description and operation of logic circuits and linear circuits and operational amplifiers;

(b)                                                                                                                                                                                                                                  —   —                                    2
    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                                                                                                                                                                                                         —   1                                    2
Description and use of printed circuit boards.

4.3   Servomechanisms
(a)                                                                                                                                                                                                                                  —   1                                    —
    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 and features: resolvers, differential, control and torque, transformers, inductance and capacitance transmitters;
(b)                                                                                                                                                                                                                                  —   —                                    2

    Understanding of the following terms: open and closed loop, follow up, servomechanism, analogue, transducer,               null, damping, feedback, dead band;
    Construction operation and use of the following synchro