Electronics Engineering Design Report
8 weeks · 0 milestones
Produce a complete electronics engineering design report for a real electronics design problem, integrating specifications, design decisions, analysis, and test results into a single coherent document. The report must include: a system specification with quantified performance requirements, a block diagram showing the overall system architecture with signal flow, detailed sub-circuit design documentation with schematic and analysis for each stage, a test plan with documented results demonstrating the system meets its specification (or a clear analysis of where it falls short and why), and a bill of materials with sourcing notes. Preferred proof: a real electronics project report with physical test results. Accessible alternative: a design report with simulation-based validation using LTspice or Falstad — simulation results must demonstrate the design meets its specification under the relevant operating conditions. Proof artifacts: the system schematic and block diagram (design artifact), the per-stage analysis and test results (analysis artifact), and the complete report (documentation artifact). Verification: an electrical engineer reviews the test results — 'your simulation shows this margin; how confident are you this would hold with real component tolerances?' — requiring specific reasoning from your own design and component choices.
Milestone map
Milestone map
3 milestones
Define an electronics design brief for a real or realistic analogue or mixed-signal circuit. The design must be more complex than the circuit analysis in eng-circuit-analysis-design — suitable examples include: a regulated power supply (rectifier + filter + linear regulator); a sensor signal conditioning circuit (amplification + filtering + level shifting for an ADC input); a battery charging management circuit for a small lithium-ion cell; or a simple class-A audio amplifier with volume control. Specify the design requirements quantitatively (supply voltage, output voltage and current, bandwidth, gain, efficiency target, operating temperature range). Produce a functional block diagram showing the major stages. For each stage, select a component or IC (using free datasheets) with a brief selection rationale (why this component meets the requirements for this stage).
Proof required
Submit: (1) the design brief with all quantitative requirements listed (supply, output, tolerance, bandwidth, operating conditions — at least five numbered requirements); (2) the functional block diagram with one block per design stage and the signal flow labelled; (3) a component selection table (stage, component/IC selected, key specification from datasheet, selection rationale in 1–2 sentences); (4) links to the free datasheets for all major components.
What gets checked
- Design requirements are quantitative and specific — 'output voltage: 5.0 V ± 2%; output current: 0 to 500 mA; ripple: <50 mV peak-to-peak at full load; efficiency: >75% at 250 mA load; input voltage range: 7 V to 12 V' is a valid requirements list; 'produces 5V output' is not
- Component selection rationale references the relevant datasheet specification — 'selected LM7805 because its output voltage accuracy is ±2% (datasheet Table 1), within the ±2% design requirement; its 1A current rating exceeds the 500 mA design maximum by 2×' is a valid rationale; 'commonly used regulator' is not
- Datasheet links are to free public sources — Mouser, Digikey, Texas Instruments, and STMicroelectronics all host free datasheets; no paywalled document links are acceptable