Wisconsin Discovery Portal

Researcher: Thomas Jahns

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Areas of Research Expertise
  • Power electronics
  • Power semiconductors
  • Switching circuit topologies
  • Electric machines and actuators
  • Digital real-time control
  • Sensors
  • Adjustable-speed drives¬†
  • Brushless motor drives and generators¬†
  • Automotive and aerospace electric systems
Web Site Thomas Jahns' Department of Electrical and Computer Engineering Website
Curriculum Vitae (CV)
Current/Active Funding
  • WARF, 2005-2020, New staff bring forward from 135-4572 051376
  • WARF, 2009-2020, Laboratory share of royalty and licensing income - Professor Thomas M Jahns
  • General Motors Corporation, 2016-2017, Investigation of PWM-induced losses in high-performance PM synchronous traction machines
Issued Patent(s)
  • 8,531,143 - Permanent magnet motor with stator-based saliency for position sensorless drive, issued September 2013.
  • 7,902,710 - Electric machine, issued March 2011.
  • 7,504,754 - Rotor having multiple permanent-magnet pieces in a cavity, issued March 2009.
  • 6,909,620 - Inverter configurations with shoot-through immunity, issued June 2005.
  • 5,986,419 - Quadrature axis winding for sensorless rotor angular position control of single phase permanent magnet motor, issued November 1999.
USPTO Published Applications
  • 20120062160 - Permanent magnet motor with stator-based saliency for position sensorless drive, published March 2012.
  • 20100079026 - Electric machine, published April 2010.
  • 20070096578 - Device having permanent-magnet pieces, published May 2007.
  • 20040213026 - Inverter configurations with shoot-through immunity, published October 2004.
Recent Publication(s)
  • PM synchronous machine drive response to asymmetrical short-circuit faults. Choi G, Jahns T. IEEE Transactions on Industry Applications. 2016;52(3):2176-2185. doi: 10.1109/TIA.2016.2518992.

  • Coulomb counting state-of-charge algorithm for electric vehicles with a physics-based temperature dependent battery model. Juang L, Kollmeyer P, Zhao R, Jahns T, R Lorenz. 2015 IEEE Energy Conversion Congress and Exposition (ECCE). 2015;():5052-5059. doi: 10.1109/ECCE.2015.7310372.

  • Magnetic model self-identification for pm synchronous machine drives. Pellegrino G, Boazzo B, Jahns T. IEEE Transactions on Industry Applications. 2015;51(3):2246-2254. doi: 10.1109/TIA.2014.2365627.

  • Plug-in direct-flux vector control of PM synchronous machine drives. Pellegrino G, Boazzo B, Jahns T. IEEE Transactions on Industry Applications. 2015;51(5):3848-3857. doi: 10.1109/TIA.2015.2420631.
Recent Artistic Works
Collaboration
  • Wisconsin Electric Machines and Power Electronics Consortium
  • Eaton Corporation, Kevin Lee
  • GM Advanced Technology Center, Sibaprasad Chakrabarti
  • Electric Machine Drive System Department, Ford Motor Company, Hongrae Kim
  • Virginia Polytechnic Institute
Research Tools
Research Facilities
E-mail Address [email protected]
Phone Number 608-262-5702
Current University UW–Madison
Department Electrical and Computer Engineering
Title Professor
Other Appointments
Address Line 1 2559 Engineering Hall
Address Line 2 1415 Engineering Drive
City Madison
State WI
Zip Code 53706
Bachelor's Degree
Master's Degree
PhD Ph.D., Massachusetts Institute of Technology, 1978
Other Degrees
Technologies Available for Licensing Inverter Configurations with Shoot-Through Immunity

Permanent Magnet Synchronous Motor Self-Sensing Drive System