Electronics study guides

A deep-dive Eduqas GCSE Electronics guide to the analogue processing and timing module within Component 2. Covers operational amplifiers (the inverting and non-inverting gains and negative feedback), the 555 timer in astable mode (frequency, period and duty cycle) and monostable mode (pulse duration), and power supplies (rectification, smoothing, ripple and regulation).

A deep-dive Eduqas GCSE Electronics guide to the combinational logic module within Component 1. Covers the logic gates and their truth tables, Boolean algebra and De Morgan's laws, designing combinational circuits from a description or truth table with universal NAND and NOR gates, and binary adders (the half adder and full adder).

A deep-dive Eduqas GCSE Electronics guide to the electronic systems and circuit concepts module within Component 1. Covers the systems approach with input, process and output subsystems, current, voltage, resistance and Ohm's law, series and parallel circuits with resistor combination, electrical power and energy with ratings, and measuring and testing circuits with meters and the oscilloscope.

A deep-dive Eduqas GCSE Electronics guide to the resistive components and sensing module within Component 1. Covers fixed and variable resistors with the colour code, preferred values and tolerance, driving LEDs with a current-limiting resistor, potential dividers and choosing resistor values, sensing with LDRs and thermistors, and capacitors with the RC time constant and time delays.

A deep-dive Eduqas GCSE Electronics guide to the sequential systems and microcontrollers module within Component 2. Covers flip-flops and latches (storing a bit, sequential versus combinational logic, the D-type and edge triggering), counters and frequency division, seven-segment displays and decoders, microcontrollers and flowcharts, and interfacing subsystems into a complete tested system.

A deep-dive Eduqas GCSE Electronics guide to the switching and diodes module within Component 1. Covers diodes (forward and reverse bias, rectification and protection), the bipolar transistor as a switch with current gain and the base resistor, the MOSFET as a voltage-controlled switch, comparators that switch at a reference, and latching with positive feedback and the snap (Schmitt) action.