- Development of Motor Drives for customer-specific applications. Development includes
prototype printed circuit hardware, Power stage with heat-sink, Logic and Firmware design that meets performance objectives,
schedule, and cost goal. Numerous design experience based on DSP micro-controllers (TI and Analog Devices) and brushless control
chips (Motorola and Unitrode).
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Motor Control Algorithm and Software for Brushless Motors, Induction Motors, Switched
Reluctance Motors, and Various Stepper Motors. Solid understanding and practice on Flux Vector Control Theory and Sensorless
Control Methods for Synchronous and Induction Motors.
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Control of Specialty Motors (Linear Motors, Slotless Motors, Axial-magnet Motors,
Reluctance Motors, Direct Drive Torque Motors)
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Digital control algorithms and software design for motion control applications. PID,
PDFF, state-space and Fuzzy logic control.
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PWM (SVM) Technology, Power Factor Correction, Power supplies.
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Static Inverters, Grid-connected Inverters, and Power Systems dealing with renewable
energies including Wind, Tidal, and Solar Power.
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Integrated Starter-Generator for Automotive and Aircraft Applications.
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Comprehensive Analysis of Motion Control and Drive Products and Systems. Optimal
Selection, Sizing and Configuration of Motion Control Systems.
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Network Communication Protocols (SERCOS, DeviceNet, Profibus)
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Modeling and Simulation of Dynamic Systems including Motors, Motion and
Power Electronics.
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Expert consultation in definition and design of competitive, high performance, low-cost
motor drive products or motion systems and to move them into production quickly with minimum risk
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On-site customized workshop for intensive tutorial on Electric Machines, Vector Control,
Digital Servo systems, Advanced Compensator Design, Motor control, etc.
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BIOGRAPHY
Dr. Ohm has spent most of his industrial and academic career in applied
R & D and product development of diverse AC and DC motor drives, motion control, and Power Electronics. He has successfully
applied many advanced concepts and technologies into products for performance improvement and cost reduction. He not only
has hands-on skills on analog, digital and software design but also has in-depth understanding on the physical characteristics
of the motors and drives as well as application requirements.
Prior to his current position, he was with Kollmorgen Motion Technologies
Group as Technical Director, Research and Development. Prior to that, he designed and developed various DSP based motor drives
and motion control products at Baldor Electric Company, Electrocraft Corporation, AMAF Industries and LG Industrial Systems.
He was an adjunct professor at San Jose State University,
Northwestern Polytechnical University, and Cogswell Polytechnical College and taught engineering
courses including Electric Machines, Robotics, and Digital Control Systems. He received his Ph.D. and M.S. degrees in Electrical
Engineering from Texas A&M University, College Station, Texas.
Dr. Ohm lead many motor drive short courses (tutorials) at major conferences
(PCIM, IMCSS, PT Design, APEC, Motor and Drive Systems, etc.), and is currently a faculty member of SMMA Motor and Motion
College Courses. He is the inventor of several patents (in process) on motor control methods and the author of more than 50
technical articles, papers, and conference proceedings. He is affiliated with IEEE (Industry Applications Society, Power Electronics
Society, and Control Systems Society), SMMA, KSEA, and SAE.
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