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 Expert  719260

Expert in Power Electronics, Controls and System Design

Available for your Consulting and Expert Witness Needs

Wisconsin (WI)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
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 and FETs, digital and analog current regulators, and overvoltage, current, and temperature circuits. His other major design work has been with PWM rectifiers, power factor correction circuits, harmonic filters, and VAR compensation systems using PWM converters. His application experience includes industrial drives on feeders, fans, pumps, conveyors, presses, power converters for solar energy, hydro-electric and battery energy storage systems, power supplies through 300kW for a super-computer manufacturer. He can answer complex questions regarding alternating current to alternating current (AC/AC), direct current to alternating current (DC/AC), and alternating current to direct current (AC/DC) conversion.

Expert has designed power conversion systems up to 200 KVA with expandability into the MVAs for a solar array, variable speed hydro, and battery energy storage used by a utility for load leveling.

Expert is presently designing power converters using resonant mode switching of IGBTs. The highlight of this approach involves zero voltage switching of IGBTs with discrete pulse modulation techniques.


alternating-current to alternating-current conversion


direct-current to alternating-current conversion


electric power


electric-power conversion


electric-power converter


motor drive

Through his experience as a designer of power conversion equipment, Expert has specified and applied a variety of power electronic devices and control circuits. He is knowledgeable of power electronic circuits involving significant analog signal processing and digital switching circuits. Expert has developed digital circuits and software to replace what was typically done with analog circuits.

power electronics

Expert can design unique driver and protection circuits for power electronic devices as well as design custom power supplies or converters to meet unique applications. He also designs the unique control circuits needed to command the power electronics for the required applicators.

digital circuit


power-supply circuit

Expert has a Masters Degree in Electrical Engineering. He has experience in circuit design and analysis as well as practical work in manufacturing and repair. He has been responsible for project planning, selection of vendors, and new product development in the

electronics engineering

Expert writes software models of power electronic circuits that include switching devices and passive elements. The models are used for either predicting system behavior or for determining stresses on components in a product design.

electric power quality


power converting circuit control


power converting circuit modeling

Expert has designed motor drives through 300 HP using bipolar transistors, IGBTs, microprocessors, and unique analog circuitry. He has started-up these units at customers facilities and designed the production processes.

analog circuit design


analog design application


insulated-gate bipolar transistor


motor drive design


power transistor

Understanding how switching power supplies generate significant electrical interference, Expert has designed circuits in power converter products and systems that have the required noise immu

electronic noise

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Milwaukee, Wisconsin;  Madison, Wisconsin;  Kenosha, Wisconsin;  Racine, Wisconsin;  Appleton, Wisconsin;  Rockford, Illinois;  Aurora, Illinois;  Elgin, Illinois;  Waukegan, Illinois;  and Schaumburg, Illinois.

Often requested
with this expert:

Power Electronics and Renewable Energy Systems
Power Electronics, Motor Drives, Renewable Energy, Etc.
Power Electronics (DC to 3 GHz), RF Power, Switching-Mode...
Power Electronics, Analog and Mixed Signal Circuit,...

Year   Degree   Subject   Institution   Honors
2007   MSME   Controls   University of Wisconsin - Madison  
1986   MSEE   Electrical Engineering - Power Electronics   University of Wisconsin - Eau Claire  
1982   BS   Physics and Math   University of Wisconsin - Eau Claire   Magna Cum Laude

Work History:
Years   Employer   Department   Title  

2006 to





Lead Engineer - Power Electronics


2005 to 2006


GE Healthcare


Resonant Magnetic Imaging


Lead Engineer - Power Electronics


1996 to 2005





Senior Design Engineer


1994 to 1996


Omnion Power Engineering



Senior Development Engineer


1992 to 1994


Power Design Specialists





1990 to 1992


Omnion Power Engineering Corp.



Senior Project Engineer


1986 to 1990





Senior Development Engineer


Career Accomplishments:

IEEE - Institute of Electrical and Electronic Engineers


PE - Professional Engineer, State of Wisconsin

Publications and Patents Summary

He has 5 patents:

U.S. Patent No. 6,118,676, "Dynamic voltage sag correction"

U.S. Patent No. 7,129,599, "Dual feed power supply systems with enhanced power quality"

U.S. Patent No. 7,158,393, "Power conversion and voltage sag orrection with regenerative loads"

U.S. Patent No. 5,969,957, "Single phase to three phase converter"

U.S. Patent No. 7,105,952, "Distributed floating series active impedances for power transmission systems"

Consulting Services:
Recent Client Requests:
  • Instrumentation and control expert needed for consulting on Instrumentation and noise mitigation.
  • Expert engineering h bridge mototr control for consulting on H bridge mosfets 137 volt DC motor control board design assistance.
  • Expert in Power Electronics.
  • Technical power expert for consulting on writing about the principles of power conversion.
  • Expert in electronic power conversion for consulting on power supply design services.
  • DC circuit engineering expert for consulting on a DC to DC converter design prototype.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.


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