High Power, High Voltage, RF Engineering Power Electronics Consultant

Technical Consultant #2294

Extensive high power, high voltage, analog, digital electronics and PCB design experience
Switch mode power supply design from 1W to 200kW, 1.8V to 400kV.
Power electronics, linear and saturable magnetics design, IGBTs, Mosfets, controls engineering, design.
RF PAs from 100W to 50kW CW, LF to L-Band, over 1MW VLF, VEDs, SiC, GaN, and LDMOS.
Microcontroller experience, FPGA, CPLDs (Microchip, Atmel, Xilinx, TI).
Particle accelerator design (Cyclotrons, Power Amplifiers, RF, Controls, Machining, Vacuum, Magnets, and Instrumentation).

Computer Expertise

Expert Witness

Root cause analysis, patent viability, and failure analysis Experience with Asian and Central American contract manufacturers.

Undisclosed Company, President, 2009 - Present

Providing design and consulting services to semiconductor industry tool developers as well as consumer electronics manufacturers including high performance audio and LED lighting applications.
Designed and brought to production 100kW DC high voltage power supply, several high power plasma drivers, tube and solid-state RF PA designs 500W to 50kW, quasi-resonant battery charging supplies, 15kW deep UV light source for thin film curing.
Designed, prototyped, and manufactured 8kW novel self-oscillating high-voltage plasma driver.

Diversified Technologies Inc., Bedford, MA, Senior Engineer, 2012 - 2015

Developing novel solid-state L-band RF power amplifiers.
Designed high power (10 MVAR) dynamic antenna tuning network.
Designing ultrafast pulsers (20kV, 400A, 5ns rise and fall).
Designed, delivered, installed 400kVdc 160kW power supply.
Wrote several DOE and military SBIR contracts, conference papers and IEEE publications.
Principal investigator on DOD Phase 1 and Phase 2 VLF Transmitter upgrade project and multiple large programs, internal research and development efforts.
Extensive work at NAA Cutler, NPM Lualualei, NRTF Dixon VLF sites.

Philips ColorKinetics, Burlington, MA, Senior Analog Engineer, 2008 - 2010

Designed, prototyped, and brought to mass production (over 100k units) three LED lighting product power supplies, meeting global safety and emissions regulations.
Designed novel microcontroller-interfaced PFC buck, PFC inverted buck, PFC flyback, half bridge ZVS-ZCS, critical mode and transition mode flyback and buck, and other supply topologies and dozens of custom magnetics.
Led team in redesigns for global EMI and safety approbations for a dozen products.
Designed power supply for LightFair International (awarded product of the year).
Senior Analog EE in group, mentoring younger engineers and guiding designs from inception to completion.

Energetiq Technology Inc., Woburn, MA, Senior Electrical Engineer, 2006 - 2008.

Designed, prototyped, and brought to production high voltage 3-phase 25kW DC power supplies inductively-coupled pulsed plasma drivers.
Designed, modeled, and prototyped several high voltage power supplies, capacitor chargers, and pulsed power systems for plasma and laser applications, up to 60kW CW, 40MW per pulse.
Devised first-principles nonlinear magnetic modeling of multi-stage magnetic switching systems.
Product development team leader for both laser-driven light source and high power, high frequency pulsed light source.
Led electrical engineering team, mentored less experienced engineers, and hired new engineers.

General Dynamics AIS, Ypsilanti, MI, Principal Engineer, 2003 - 2006

Developed calculation methods and GMTI algorithms for novel passive, bistatic SAR system.
Led multi-disciplined team in hardware partitioning a real-time radar range compression algorithm onto COTS FPGA VME boards.

Academic and Professional Affiliations

Awards

Lighting for Tomorrow Grand Prize award for SSL Cove Lighting
LightFair International Product of the Year award for remote-phosphor downlight
GDAIS Creative Technology Proposal Award, Excellence Award for program achievements, University of Chicago ASC Outstanding Volunteer Award
Scientific Consultant, "The Nuclear Boyscout," Eagle & Eagle Television, London
Featured Scientist, "Stephen Hawking's Universe," BBC, London
International Science and Engineering Fair Grand Award, for demonstrating cyclotron of my own design (uniform field, two Dee, slight positive index, variable frequency proton cyclotron, 400nA peak beam current

Patents