Vancouver, British Columbia, Canada
SUMMARY OF QUALIFICATIONS • PCB design, turnkey manufacturing assembly, documentation, test jig and technical support. • DC power distribution, power conversion and magnetic design. • Power and signal harness design, prototyping, and procurement. • Electrical designs with motor and speed controllers procurement and verification. • Electrical and electronic components procurement and verification for fuel cell lift truck, fuel cell bus and fuel cell car. • Digital and analog I/O circuitry design for embedded controller. • Extensive working experience with large variety of sensors, switches and relays.
Extensive designs in BMS for module, pack and array level with focus on module BMS design; Electrical design for Multi-MWs 1200V DC Li-ion battery energy storage system; Develop 4 generations of battery BMS designs for NMC, LFP Li-ion battery and LIC (lithium-ion capacitor); Responsible for every process from BMS concept designs to PCBA turn key delivery; Develop BMS EMI design to meet marine standards; Rigid and flex PCBA design and layout using Altium Designer; Electrical design on fuse, contactor, safety and short circuit analysis; Provide BMS sensing solution for voltage, current, temperature, leakage and humidity; Assist in component procurements and sourcing for BMS prototype and production.
• Designed PCBs using Altium Designer and supported turnkey manufacturing assembly for hydrogen sensor, power distribution, auxiliary power supply and EMI filter. • Developed production test jigs, provided module assembly instruction and test documentation. • Designed power conversion between fuel cell and ultracapactor and thermal management. • Supported cost reduction and component sharing over various platforms to increase the component volume. • Performed electrical component failure root cause analysis and worked with supplier for corrective actions using XFRACAS. • Conducted electrical system FMEA for lift truck fuel cell generator.
• Designed electrical system for fuel cell and ultracapacitor hybrid system. • Designed ultracapacitor bank passive and active balance circuit. • Developed electrical component specifications for fuel cell lift truck generator. • Specified and procured brushless DC motor and speed controller for air compressor, radiator fan, coolant pump and recirculation pump. • Procured sensors and switches with focusing on automotive components. • Involved in system embedded controller digital and analog I/Os design, testing and verification. • Designed low cost hydrogen sensor module and developed hydrogen sensor calibration schedule, maintenance and service criteria. • Conducted feasibility study for grid tie with fuel cell car traction inverter.
• Conducted value engineering study for sensors and switches for fuel cell bus engine. • Designed electrical system for fuel cell engine for P2000, Ford’s first prototyped fuel cell car. • Packaged auxiliary power supplies, ground fault detection unit and motor speed controller for the P2000 fuel cell engine. • Designed and built power and control wiring harness for the P2000 fuel cell engine.
• Worked on fuel cell stack maintenance, support and testing for fuel cell bus engines. • Designed and built fuel cell sack test equipment. • Scheduled maintenance and repair for fuel cell stacks in fuel cell bus. • Provided solution for high voltage electrical insulation for the fuel cell bus engine. • Supported fuel cell bus engine in the field on fuel cell stack reliability.