Jack La

- Design, execute, and analyze reliability tests for drive inverters - Collaborate with cross-functional teams to identify and mitigate potential reliability issues - Utilize electronic design software to simulate and troubleshoot inverter circuits - Provide technical guidance and mentorship to Junior Engineers and Technicians - Prepare and present detailed reports on test findings and recommendations

Build, run and maintain Drive Inverter reliability tests

• Troubleshot field reported issues on utility scale solar inverters ranging from 500kW to 2.2MVA by simulating faults on test devices and performing root cause analysis • Analyzed power quality parameters such as Power Factor and THD using DAQ measurement systems to verify performance of various Solar Inverters • Performed EMC and thermal testing on a 8kW MPPT solar charger prototype to validate performance of upgrades while meeting compliance standards

• Executed low and high voltage lab tests and a design review of a 10 kW power converter prototype and power switching modules (IGBTs) for a reluctance type machine • Extensively used test equipment such as oscilloscope, power supply and multi-meter to debug and trouble shoot analog, digital and high voltage circuits • Assembled, reworked and tested PCBs with a high attention to detail using schematic capture programs and oscilloscope • Designed and manufactured custom hardware components such as test platforms, magnetic shaft couplings and PCB enclosure using SolidWorks and 3D printer

Courses: 1. Control of Electrical Drives 2. Advanced Power Electronic Converters and Devices 3. Heat Transfer theory and design 4. Operation and Control of Power Systems 5. Renewable Energy 6. Power systems and electrical machines Thesis: "Investigating the impact of inverter control schemes on the electrified powertrain system performance" This study investigates how inverter control schemes affects the performance of an electric drivetrain. A survey of literature on existing space vector modulation and overmodulation methods for voltage source inverters are presented, followed by simulation analysis and recommendations for real-world implementation. A two-zone space vector overmodulation technique is implemented in MATLAB Simulink to control the inverter up to six-step operation. The performance of the overmodulation space vector technique compared with the industry standard of sinusoidal carrier wave PWM method yielded lower harmonic content in motor voltage and current waveforms.

Courses: 1. Power Electronics 2. Analog CMOS IC design 3. Control Systems