Medical PCB & Hardware Architecture

Designed a High-Power Logic-Isolated Control PCB utilizing TC4422 high-speed gate driving to manage 15A of raw power.

Implemented active cycle-by-cycle current limiting and strict logic-power isolation to protect delicate MCU components from high-voltage transients.

Fabricated a miniaturized edge ECG PCB using KiCad, seamlessly integrating an ESP8266 and AD8232 with a continuous GND copper pour for electromagnetic shielding.

Engineered a Mixed-Signal Processing Board featuring a hardware-level 6th-Order Analog Low-Pass Filter utilizing cascaded operational amplifiers to suppress low-frequency noise.

Demonstrated IEC 60601 safety principles on a 4-stage hardware architecture by implementing a galvanic barrier with 6N137 high-speed optocouplers.