• Developed a high-performance universal ac to 48 V, 800 W single-phase multilevel (FCML) buck-typePFC rectifier. Includes contributions of the flying capacitor voltage dynamics in the feedback control.• Produced and experimentally validated a low-inductance (1 nH) PCB switching commutation loop design to better harness the fast switching capabilities of single and paralleled GaN semiconductors.• Producing a comprehensive survey and technological comparison of all present commercial… Show more • Developed a high-performance universal ac to 48 V, 800 W single-phase multilevel (FCML) buck-typePFC rectifier. Includes contributions of the flying capacitor voltage dynamics in the feedback control.• Produced and experimentally validated a low-inductance (1 nH) PCB switching commutation loop design to better harness the fast switching capabilities of single and paralleled GaN semiconductors.• Producing a comprehensive survey and technological comparison of all present commercial capacitors.• Modeling the fundamental circuit states of the FCML to characterize the underlying dynamic behavior. Show less

• Assisted in bring-up of hardware for next generation of on-board single-phase/three-phase vehicle charger.• Validated and implemented existing control features in hardware-in-the-loop (HIL) and then firmware.• Identified and improved critical control features which increased efficiency and reduced harmonic content to enable thermal and EMI validation.

• Thoroughly investigated active single-phase twice-line frequency buffers. Modeled, simulated, and built a prototype of the series-stacked buffer (SSB) which incorporated a novel voltage-sense/control scheme.• Integrated both the hardware and control of the SSB and a single-phase multilevel (FCML) boost PFC.• Constructed and tested a full high-density, high-efficiency 400 V, 1.5 kW PFC rectifier prototype.• Surveyed and quantitatively analyzed LED drivers in consumer A-type… Show more • Thoroughly investigated active single-phase twice-line frequency buffers. Modeled, simulated, and built a prototype of the series-stacked buffer (SSB) which incorporated a novel voltage-sense/control scheme.• Integrated both the hardware and control of the SSB and a single-phase multilevel (FCML) boost PFC.• Constructed and tested a full high-density, high-efficiency 400 V, 1.5 kW PFC rectifier prototype.• Surveyed and quantitatively analyzed LED drivers in consumer A-type lighting. Show less

• Analyzed existing research on EM near-field communication and wave-guiding structures.• Developed and thoroughly simulated practical prototypes to improve a specific product.• Established a detailed design methodology for future concept verification.

• Designed and tested simulation software which impacted the transmission controller development process.• Gained experience in embedded software implementation and its interface to hardware.