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Power Electronics, Controls and System Design
Expert has experience as a design engineer in the field of power conversion. He has designed conventional PWM inverters for motor drives as well as developed prototype resonant DC link converters. He has designed driver circuits for bipolar transistors, IGBTs…
Power Electronics and Switched Mode Power Supplies
Expert has spent a large part of his career developing products in technical leadership positions in the general category of power electronics. He is a member of the IEEE Power Electronics Specialists Society and has attended and presented papers and…
Polyurethanes; Crystalline Polymers; Dielectric Properties; Ion-containing Polymers
Summary: Although I retired from Penn State in July '18, I continue to be engaged in the scientific / technical side of polymer science and engineering. I am more actively seeking external consulting opportunities, including serving as an expert witness.…
Microwave and Combination Oven Development, Food Heating Technology and Oven Calibration Services
Expert has been completely involved with microwave (MW) appliance cooking technology since 1969. He has expertise in developing gas and electrical combination microwave ovens and cookers, for consumer, foodservice, vended hot-food, and bakery equipment applications. He has developed microwave ovens…
Semiconductor Devices, Testing and Product Engineering, Marketing and Administration
Expert has spent most of his career in the semiconductor device and process technology areas. His experience is wide, with exposure to germanium and silicon discrete to large scale silicon integrated devices in the sub-micron regime. An area that is…
Motor and Generator Design and Development
COMPUTER-AIDED DIRECT CURRENT (DC) MOTOR DESIGN; DC MOTOR DEVELOPMENT; FERRITE MOTOR. The most significant portion of Expert's work for the past 5 years has involved computer-aided design and product development of a variety of permanent magnet (PM) brushless DC motor/controller…
Electronic Product Development
Expert (pronounced road-re-an) has designed analog circuits that measure current or voltage signals from temperature, pressure, flow, and conductivity transducers. He has designed isolated, 4-20 mA current loop transmitters. The analog circuits provide inputs to or outputs from microprocessor-based controllers.…
Metallurgy & Materials Engineering with emphasis in Ceramics and Electrical Insulators, etc.
ELECTRICAL CERAMIC. Expert's rare background of experience in industry, national laboratories, federal government, and academia has helped provide him with expertise in the areas of ceramics and electronic materials (components). CERAMIC MATERIAL; ELECTRICAL INSULATION MATERIAL. Expert' expertise in ceramics includes…
Dielectric Phenomena
Some of Expert's prior work has centered on the design and appraisal of transformer insulation structures, with particular emphasis on oil/cellulose systems. This work has involved both fundamental research on mechanistic aspects and the implications for design. He has been…
Surface Mount Technology (SMT) and High-Technology Light Sources, Turnkey Operations, etc.
Expert has devoted a significant portion of his career to the development of Surface Mount Technology (SMT) devices, equipment, and processes. These include: placement, cleaning, solder reflow equipment, components, component design, component packaging for automatic placement, and processing of the…