Selected engineering outcomes from real engagements.

Raised the peak operating envelope of a high-voltage EV traction inverter. Built a loss model of the existing design, substituted the power MOSFET to bring losses inside the operating envelope, reviewed the gate-driver stage against the new switching characteristics, and validated the change with double-pulse testing alongside a cooling review run with the mechanical team.

Closed a low-temperature failure mode on an electronic product. The trip traced back to a temperature-sensitive component in the input path; the fix was a temperature-compensation arrangement that dropped into the existing footprint, so no board respin was needed. Validated throughout the operating temperature range.

Resolved an intermittent CAN dropout that emerged under load. Added common-mode filtering across the CAN bus and the supply paths. Communication held cleanly through the previously problematic operating range.

Diagnosed and corrected a misdesign in a protection circuit on a low-voltage product. The original arrangement was forcing the protection stage into audible-frequency switching with the thermal stress that comes with it. After the rework, the circuit operated as intended — no noise, no overheating.

Designed a resolver-to-digital position-sensing circuit and built a closed-form mathematical model of it in MathCAD. Lab measurements matched the model across signal levels and latency — theory, simulation, and bench results aligned end to end, with measured values inside the expected tolerance band.

Designed a portable 3.6 kW EV charging station end-to-end — block diagram, schematic, PCB layout, supporting simulation and calculation work — for an EV charging startup. Carried through into prototype, then into the cost-optimization and component-sourcing pass that brought the BOM into target.

Built an end-of-line validation setup and procedure for an EV charging product line. Plus a small portable tester used by installation technicians to validate units on-site after deployment.

Designed a bench-side validation platform for electronics bring-up and pre-production verification. Single tool with controllable supply outputs, 24 analog measurement channels covering DUT test points, and CAN for in-loop interaction with the unit under test. Designed for channel-count expansion through additional modules. PC interface over USB and Wi-Fi handles test automation and report generation.

Designed a portable TENS (transcutaneous electrical nerve stimulation) circuit for a medical-device customer — schematic, layout, and the supporting electronics analysis.

Implemented an analog front-end for a corrosion-monitoring instrument against client-defined measurement requirements. Designed the signal-conditioning chain with deliberate grounding, shielding, and creepage discipline; validated noise, gain, and linearity across the operating range. The OEM integrated the front-end into their instrument.