WJEC
Level 3
QN: 603/0777/8
Curriculum Active
WJEC Eduqas Level 3 Advanced GCE in Electronics
Official qualification regulated by Ofqual, awarded by WJEC. Classified as a GCE A Level. Total guided learning hours: 360 hours.
Qualification Level
Level 3
Awarding Body
WJEC
Syllabus Units
3 Units
Guided Hours
360 hrs
Instant access to interactive lessons, quizzes, and spaced revision.
Course Syllabus & Study Modules
Complete breakdown of verified curriculum topics and learning objectives.
1
Digital Electronics
Combinational Logic Circuits
Verified
Key Learning Objectives:
- Derive Boolean expressions from given truth tables
- Simplify Boolean expressions using algebraic methods or Karnaugh maps
- Construct logic diagrams for combinational circuits using basic gates
- Convert any logic circuit to a NAND-only equivalent
- Verify the equivalence of original and NAND-only circuits through truth table comparison
- Evaluate the benefits of using NAND gates in circuit design
2
Digital Electronics
Logic Gates and Boolean Algebra
Verified
Key Learning Objectives:
- Identify and draw symbols for basic logic gates.
- Simplify Boolean expressions using laws and De Morgan's theorem.
3
Digital Electronics
Sequential Logic Circuits
Verified
Key Learning Objectives:
- Describe the operation and truth tables of SR, JK, D, and T flip-flops, including edge-triggering behavior.
- Analyse timing diagrams for sequential circuits, demonstrating the relationship between clock pulses and state changes.
- Design synchronous binary counters using JK flip-flops and minimal logic gates.
- Construct shift registers in various modes (SIPO, SISO, PIPO, PISO) and explain their data flow.
- Evaluate the differences between asynchronous and synchronous sequential logic for reliability and speed.
4
Measurement and Testing
Oscilloscope and Multimeter
Verified
Key Learning Objectives:
- Use an oscilloscope to measure voltage, frequency, and phase.
- Use a multimeter to measure resistance, voltage, and current.
5
Measurement and Testing
Signal Generators and Frequency Response
Verified
Key Learning Objectives:
- Explain the operating principles of function generators for producing sine, square, and triangular waves.
- Analyse the frequency response curve of an amplifier to determine bandwidth and gain.
- Evaluate the impact of signal generator output impedance on measurement accuracy.
- Design a test circuit to measure the frequency response of an audio amplifier.
- Interpret Bode plots to assess amplifier stability and phase margin.
- Compare the characteristics of sine, square, and triangle waves in testing amplifier linearity.
6
Operational Amplifiers
Inverting and Non-Inverting Amplifiers
Verified
Key Learning Objectives:
- Design inverting and non-inverting amplifier circuits to meet specified gain requirements using appropriate component values.
- Calculate closed-loop voltage gain for both configurations using standard formulas (G = -Rf/Rin and G = 1 + Rf/R1).
- Determine input and output impedance for inverting and non-inverting amplifiers based on circuit topology.
- Explain the concept of virtual earth in inverting amplifiers and its effect on input impedance.
- Evaluate the impact of op-amp non-idealities (e.g., finite open-loop gain, slew rate) on amplifier performance.
7
Operational Amplifiers
Op-Amp Applications
Verified
Key Learning Objectives:
- Describe the circuit configurations and operational principles of summing, difference, and integrator amplifier circuits.
- Derive the output voltage equations for summing and difference amplifiers using Kirchhoff's laws and op-amp ideal assumptions.
- Analyse the Bode plot of an integrator circuit to determine its frequency-dependent behaviour and cutoff frequency.
- Evaluate the impact of real op-amp parameters such as slew rate and input offset on integrator performance.
- Design and simulate a combination of op-amp circuits to meet specified input-output relationships.
8
Operational Amplifiers
Op-Amp Characteristics
Verified
Key Learning Objectives:
- Describe the effect of negative feedback on op-amp performance metrics
- Calculate voltage gain for inverting and non-inverting amplifier configurations using virtual earth
- Analyze the deviations of a real op-amp from the ideal model and their circuit implications
- Apply the concept of virtual earth to derive circuit equations for summing amplifiers
- Evaluate the impact of finite open-loop gain on closed-loop accuracy
9
Power Supplies
Rectification and Smoothing
Verified
Key Learning Objectives:
- Compare the circuit topologies, output waveforms, and efficiency of half-wave and full-wave rectification.
- Explain the charging and discharging behaviour of a reservoir capacitor in a smoothed DC supply.
- Calculate the peak-to-peak ripple voltage for a given load current and smoothing capacitance.
- Evaluate the effect of load variations on the ripple voltage in a capacitor-smoothed power supply.
- Analyse the peak inverse voltage (PIV) requirements of diodes in different rectifier configurations.
- Select appropriate smoothing components to meet specified ripple and voltage regulation criteria.
10
Power Supplies
Voltage Regulation
Verified
Key Learning Objectives:
- Describe the operation of a Zener diode as a voltage regulator.
- Explain the function of a series resistor in a Zener shunt regulator.
- Design a simple series voltage regulator using a transistor and Zener diode.
- Calculate component values for a series regulator given load specifications.
- Analyze the effect of load and input voltage variations on regulator performance.
- Evaluate the suitability of a shunt versus series regulator for a given application.
11
Semiconductors and Diodes
Diode Characteristics and Applications
Verified
Key Learning Objectives:
- Draw and interpret the I-V characteristic of a silicon diode, labelling key regions and parameters.
- Describe the use of diodes in half-wave and full-wave rectification circuits.
- Explain the operation of diode clipping circuits for waveform shaping.
- Evaluate the effect of forward voltage drop on rectifier output.
- Apply diode models to predict circuit behaviour in rectifier and clipper configurations.
12
Semiconductors and Diodes
Semiconductor Materials
Verified
Key Learning Objectives:
- Describe the crystalline structure and bonding of intrinsic semiconductors.
- Explain how doping creates n-type and p-type extrinsic semiconductors.
- Compare the majority and minority charge carriers in n-type and p-type materials.
- Analyze the effect of temperature on the conductivity of semiconductors.
- Evaluate the role of doping concentration in semiconductor device performance.
- Illustrate the energy band diagrams for intrinsic and doped semiconductors.
13
Semiconductors and Diodes
The p-n Junction
Verified
Key Learning Objectives:
- Explain the formation of the depletion layer.
- Describe forward and reverse bias characteristics.
- Calculate the width of the depletion region for given doping concentrations and applied voltage.
- Analyse the current-voltage characteristic curve of a p-n junction diode to determine threshold voltage and breakdown voltage.
- Evaluate the effect of temperature on the barrier potential and reverse saturation current.
- Apply the diode equation to predict current under different bias conditions.
- Distinguish between ideal and non-ideal diode behaviour in practical circuits.
14
Timing Circuits
555 Timer
Verified
Key Learning Objectives:
- Describe the internal block diagram of the 555 timer.
- Design astable and monostable circuits using the 555 timer.
15
Timing Circuits
RC Timing Circuits
Verified
Key Learning Objectives:
- Analyse the charging and discharging behaviour of capacitors in RC circuits
- Calculate time constants and predict transient voltage or current values at specific times
- Evaluate the effect of varying resistance and capacitance on timing characteristics
- Design a simple RC timing circuit to meet a specified time delay
- Interpret oscilloscope traces showing RC transient responses
16
Transistors and Amplifiers
Bipolar Junction Transistors (BJT)
Verified
Key Learning Objectives:
- Describe the layered physical structure of npn and pnp transistors, identifying the emitter, base, and collector terminals.
- Explain the biasing conditions required for an npn BJT to operate in the active region, including voltage polarities.
- Calculate the DC current gain (β) from given base and collector current values.
- Interpret the significance of β in determining the relationship between input and output currents in amplifier circuits.
- Compare the operation of a pnp transistor to an npn, highlighting differences in majority carrier flow and supply polarities.
17
Transistors and Amplifiers
Common Emitter Amplifier
Verified
Key Learning Objectives:
- Design a common emitter amplifier with specified voltage gain and bandwidth.
- Calculate the quiescent collector current and voltage to ensure linear operation.
- Apply the hybrid-π model to derive voltage gain, input impedance, and output impedance.
- Evaluate the impact of component tolerances and temperature on bias stability.
- Analyse the frequency response, identifying low-frequency and high-frequency cut-off points.
- Interpret practical measurements to assess gain and phase shift.
18
Transistors and Amplifiers
Field Effect Transistors (FET)
Verified
Key Learning Objectives:
- Describe the physical structure and operation of n-channel and p-channel JFETs.
- Explain the differences between enhancement-mode and depletion-mode MOSFETs.
- Interpret transfer characteristic graphs to determine cut-off voltage and saturation current.
- Define transconductance and calculate its value from characteristic curves.
- Analyze the effect of temperature on FET operation and transfer characteristics.
- Evaluate the suitability of FETs over BJTs in specific amplifier applications.
Regulatory & Verification Details
- Qualification Number (QN)
- 603/0777/8
- Regulated Status
- Available to learners
- Awarding Body
- WJEC
- Qualification Type
- GCE A Level
- Operational Start
- Aug 2017