Design and Control Methodology for Improved Operation of a HV Bipolar Hybrid Switched Capacitor Converter J. Delhotal, J. Richards, J. Stewart, J. Neely, J. Flicker, R. Brocato, L. Rashkin Sandia National Laboratories Albuquerque, New Mexico, USA

Design and Control Methodology for Improved Operation of a HV Bipolar Hybrid Switched Capacitor Converter J. Delhotal, J. Richards, J. Stewart, J. Neely, J. Flicker, R. Brocato, L. Rashkin Sandia National Laboratories Albuquerque, New Mexico, USA Email: jneely@sandia.gov Jane Lehr University of New Mexico Albuquerque, New Mexico, USA 

 Abstract— In this work, a novel dc-dc converter topology, an adaptation of the Hybrid Switched Capacitor Circuit (HSCC), is considered for use in high-gain, high voltage applications that also require high efficiency and superior power density. In particular, a bipolar HSCC design is described, and a candidate control methodology is set forth and developed analytically. The converter performance is demonstrated to be consistent with analysis. In addition, the converter is demonstrated to step 460V up to 8.63 kV (gain of 19) at 3.63 kW and nearly 97.0% efficiency. 

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https://www.osti.gov/servlets/purl/1473752