Projects

I designed the first electronics revision of a CubeSat solar-flare payload in EasyEDA, integrating the payload computer, onboard storage, power regulation and protection, visible-light sensing, magnetometry, development interfaces, and spacecraft connections. A design review then exposed the most important limitation of Rev A: the schematic contained the supporting electronics, but not yet the dedicated X-ray detector and low-noise analog front end required to make it a functional solar X-ray instrument.

I designed the first electronics revision of a CubeSat payload intended to measure small-scale irregularities in ionospheric plasma. Rev A brings together a low-current probe front end, programmable probe bias, high-resolution digitisation, GNSS time and position, onboard storage, magnetic and thermal context sensing, and an RP2040 payload computer. The design review then identified the physical-probe, analog, guarding, bias-range and interference-control work still required before fabrication.

I designed the first electronics revision of a CubeSat receiver intended to detect very-low-frequency electromagnetic signals produced by lightning. Rev A combines a search-coil input, analog amplification and filtering, 12-bit digitisation, event-processing electronics, power and protection, and ground-development interfaces. Reviewing the design made the harder part clear: a sensitive VLF receiver has to distinguish natural signals from aliasing, calibration signals, and electrical noise generated by the spacecraft itself.

I designed the first electronics revision of a CubeSat payload intended to detect gamma-ray bursts and timestamp individual detector pulses precisely enough for comparison with other spacecraft and observatories. Rev A brings together pulse amplification, triggering, pulse-height digitisation, GNSS timing, storage, SiPM bias power, housekeeping, and an STM32 payload computer. Reviewing it exposed the most important remaining gaps: the scintillator and SiPM detector head is not yet present, pulse shaping still has to be added, and the timing path must be calibrated end to end before the timestamps can support scientific comparison.

I designed the first electronics revision of a CubeSat photometer intended to measure the brightness of a selected star over several hours and look for the small, repeatable dip caused by a known transiting exoplanet. Rev A combines a BPW34 photodiode, a transimpedance amplifier, a 16-bit ADC, a calibration-light interface, onboard storage, power and development electronics. The design review made the harder problem clear: a transit-like dip can also be produced by pointing error, temperature drift, stray light or electronics drift, so those effects have to be measured well enough to rule them out.

I designed the first electronics revision of a CubeSat particle monitor intended to map how energetic-particle radiation changes along an orbit during quiet and storm-time conditions. Rev A explores multiple silicon-detector channels, pulse amplification and shaping, programmable thresholds, coincidence detection, contextual magnetic and motion sensing, onboard storage, and spacecraft interfaces. The design review made the central challenge clearer: four detectors are only useful as four science channels if their geometry, shielding, calibration, timing and independent signal paths are actually defined.