Search Results - woongkul+lee

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Bidirectional Indirect Matrix Converter Circuit for DC Fast Charging
Executive Summary Indirect matrix converters (IMCs) are commonly used in AC/AC converters, which comprise a major power electronics component of DC fast chargers, motor drives, and other electrical power converters. A common use is to convert between 120V, 60Hz, 3-phase grid power to 50kHz+ PWM waveforms for use by systems further ‘downstream’....
Published: 12/8/2025   |   Inventor(s): Woongkul Lee, Avinash Dornala
Keywords(s):  
Category(s): Electrical, Mobility, Subassemblies and Components
Modular and Scalable Solar Microinverter
Executive Summary Induction motors are used in a myriad of applications. Often, however, they are oversized and draw high starting currents which typically incurs additional electricity charges. For pumping applications, this can also lead to excess wear of the pump and piping system. While a variable speed drive (VSD) may alleviate this problem, VSD’s...
Published: 1/6/2025   |   Inventor(s): Woongkul Lee, Younsuk Dong, Musab Guven
Keywords(s):  
Category(s): Mobility, Electrical, Energy
Modified Green Tea Polyphenol EGCG and EGCG-ester Inhibit Endospores
Modified Green Tea Polyphenol EGCG and EGCG-ester Inhibit EndosporesResearchers at Augusta University have invented skin-friendly compositions and methods for killing, inactivating, or otherwise reducing the bacterial endospores by using an effective amount of the green tea EGCG or its derivatives. EGCG research shows clear application for a hand sanitizer...
Published: 4/21/2023   |   Inventor(s): Stephen Hsu, Lee Lee, Tin-Chun Chu
Keywords(s):  
Category(s): Therapeutics