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Alex Chen

Senior Embedded Systems Engineer

Designing high-reliability motor-drive and power-conversion systems for industrial automation. Obsessed with ยตA-level power budgets and getting bare-metal code right the first time.

๐Ÿ“ Munich, Germany

Level 19
Distinguished Engineer ยท 48,200 XP
Top 3% globally
312
Topics Learned
21
Rare Skills
44d
Current Streak
112d
Longest Streak

Skill Highlights

Isolated Gate Driver Design31 endorsementsLegendary
SiC/GaN Switching Losses18 endorsementsLegendary
Digital PID on STM3227 endorsementsElite
LLC Resonant Converter14 endorsementsElite
EMI Pre-Compliance Testing22 endorsementsElite
CAN FD Protocol Stack19 endorsementsRare
Functional Safety (ISO 26262)11 endorsementsRare
Battery Management Systems16 endorsementsRare
RTOS Task Scheduling33 endorsementsUncommon
SMPS Layout Best Practices24 endorsementsUncommon

Engineering Projects

48 V / 5 kW SiC Motor Drive
Lead Hardware Engineer

Three-phase inverter for industrial servo motors. Achieved 98.4% efficiency at full load with custom dead-time compensation. CE-marked, passed EN 61800-3.

STM32G474FreeRTOSMATLAB/SimulinkSiC MOSFETsIsolated gate driversRogowski coil
Isolated 400 W LLC Converter
Power Electronics Designer

Wide-input (85โ€“265 V AC) flyback to LLC topology migration. Reduced switching losses by 60% vs. hard-switching predecessor.

C (bare-metal)LTspiceAltiumUCC256404Planar transformerSiC diodes
Battery Pack BMS (18-cell Li-ion)
Firmware & Hardware

Precision coulomb counting (ยฑ0.5% SoC), cell balancing, CAN reporting. Deployed in 200+ field units.

STM32L4CAN FDPythonBQ76952LEM sensorCustom PCB
Repo

Badges

โšก
Power Master
๐Ÿ†
Top 3% Global
๐Ÿ”ฅ
100-Day Streak
๐ŸŽ“
Power Electronics Cert
๐Ÿ›ก๏ธ
Safety Champion
๐Ÿ”ฉ
Hardware Veteran

Specialization

Power Electronics94%
Motor Control88%
Embedded C/C++82%
EMC & Signal Integrity76%
RTOS71%
CAN / Automotive65%
Battery Systems60%
Safety & Standards52%

Competency by Domain

Analog Design
92%
Power Systems
96%
Firmware
81%
Signal Integrity
75%
RF & Wireless
28%
FPGA / Digital
40%