Clark School Home UMD
ECE

ECE News Story

Patent Awarded to Khaligh for Digital Control of Power Converters

Patent Awarded to Khaligh for Digital Control of Power Converters

ECE Assistant Professor Alireza Khaligh has been awarded U.S. Patent # 8,089, 254, titled, “Digital Control of Power Converters”.  The patent was issued on January 3, 2012.

This invention deals with a method of controlling DC/DC converters to regulate output voltage from an input voltage source that varies from a fully charged voltage to a discharged voltage. The method introduced improves the dynamic response of the converter during transients by switching between different converter topologies to spread out voltage spikes, which are an inevitable result of transients. The invention also can improve the efficiency of the DC/DC converter by replacing higher loss modes with combination modes.

The research from which this methodology conceptualized was a project aimed to control a non-inverting back-boost converter for digital cameras. The proposed idea was extended to control integrated-chargers for next generation plug-in electric vehicles, which was supported by the National Science Foundation.

Having digital control of the power converter when energizing both low-power devices, like digital cameras or cell phones, and medium-level power devices such as plug-in electric vehicles (PEV) and solar-powered systems means the devices will be more efficient and remain powered longer for wide ranges of battery’s state-of-charge.

For more information, please visit the U.S. patent website.


Related Articles:
Khaligh and Dusmez issued U.S. Patent 9,419,522
Alireza Khaligh named an IEEE Industry Applications Society Distinguished Lecturer
Khaligh receives NSF Partnership for Innovation grant on electric vehicle technology
UMD Researchers Creating First Onboard Fast-Charging System for Electric Vehicles
Khaligh receives U.S. Patent 8,853,888 for multiple-input DC-DC converter
Khaligh named associate editor of IEEE Transactions on Transportation Electrification
Khaligh wins Best Vehicular Electronics Paper Award two years running
Khaligh is PI for hybrid energy storage system NSF GOALI grant
Khaligh receives NSF grant for SiC-based battery charging
Alireza Khaligh chairs IEEE's ITEC'13 conference

February 17, 2012


Prev   Next

Current Headlines

Ott, Yorke, and Grebogi recognized by Thompson Reuters as 2016 Citation Laureates in Physics

Professor Khaligh Named Area Editor for the IEEE Transactions on Vehicular Technology

Milchberg and Khaligh Receive 2016 Junior and Senior Faculty Outstanding Research Awards

Prof. Ott, Prof. Yorke & Alumnus Grebogi Named 2016 Thomson Reuters Citation Laureates

ECE Students Advised by Rama Chellappa win Best Poster Award and nVIDIA Best Paper Award at IEEE BTAS 2016

Yeung Receives National Science Foundation Award

Narayan, Zhou, Schlotfeldt, Strahan win ISR outstanding awards

Chellappa to Receive Distinguished Alumnus Award from Indian Institute of Science

News Resources

Return to Newsroom

Search News

Archived News

Events Resources

Events Calendar

Additional Resources

UM Newsdesk

Faculty Experts