The engineering problem
AUC Peribsen is a Heart Hackathon 2026 Grand Finalist. Mazen led a seven-engineer TET sub-team, then personally completed the 2026 design, build, bench testing and reporting after the sub-team dissolved.
Develop a wireless power path for a total artificial heart. The present air-gap bench prototype establishes an electrical baseline; complete-system power delivery, tissue performance and continuous operation remain unverified.
Approach & contribution
Built the STM32 PWM → IR2110 → IRF540N Class-D half-bridge → series–series compensated coils → MBR20100 Schottky bridge → 440 µF → 20 Ω load path on perfboard.
Compared configurations at a fixed 20 Ω load and 5 mm spacing, recording Vin, Iin and Vout simultaneously. Rail-to-load DC efficiency excludes the separately powered STM32.
Replaced the original coils, retuned compensation capacitors and shortened interconnections, changing one variable at a time.
Rebuilt the test protocol after identifying an incorrectly identified load, current-limit/readout confusion, a blown DMM fuse, an LED parasitic load and scope frequency artefacts.
Measured on the bench
What changed between configurations?
2.677 W rail input
5.76 V across the load
Retuned capacitors and shorter interconnections gave the best measured result.
Source: AUCP_TET-RS-001, Table 2. Rail-to-load DC efficiency excludes the separately powered STM32. At 10 mm, transfer was confirmed with approximately 37–43% efficiency; that observation is not part of this fixed-gap comparison.
Results & boundaries
62.00% rail-to-load efficiency and 1.66 W into 20 Ω at 5 mm, at 200 kHz.
Transfer confirmed at 10 mm; efficiency approximately 37–43%, not a fully characterized operating point.
Thermal testing, 10–25 mm gap and misalignment characterization, telemetry, protection, sustained operation and power scaling remain open.
Illustration sources
Custom drawings based on the project record
The interactive sheets redraw the power path and prototype assembly from the supplied TET report and transmitter schematic. Winding-tool geometry, electromagnetic fields and thermal views are illustrative. Original photographs are not displayed.
Content basis: MAZEN_CONTEXT v1.3, 9 October 2026 and AUCP_TET-RS-001, 4 September 2026.