2026-09-19T22:00:21Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/46665 2023-07-11 col_2142_8888 col_2142_5131 com_2142_8887 com_2142_234 com_2142_5130

Hybrid Converter 2 Stage Converter Analysis of soft charging switched capacitor power converters text Pilawa-Podgurski, Robert C. May, Ryan 2014-01-16T17:58:12Z 2014-01-16T17:58:12Z 2013-12 2014-01-16T17:58:12Z 2013-12 Switch capacitor converters are a microcosm in the world of power converters and as such have received little attention in both research and application. There is a perception that they possess many undesirable operating characteristics, such as inefficiency, poor output regulation and tracking, and large impulse currents. These perceptions relegate switch capacitor converters to very niche solutions or even preclude them from consideration. The focus of this thesis is to outline soft-charging control, which addresses the stigmas associated with switch capacitor converters. A topology analysis is performed to determine which topologies can support soft-charging, and the Dickson charge pump is selected for the continued development of soft-charging control. The specifics of adapting soft-charging to the Dickson topology are accomplished through a loop-by-loop analysis to modify the phase structure and charge vector analysis to calculate the switching threshold control parameters. The result is a capacitive-magnetic, 2-stage hybrid converter that achieves greater capacitor utilization and effective output regulation. The interplay between the two stages allows each stage's operation to be augmented, while mitigating the drawbacks. This solution is well suited for large step-down applications that need high efficiency and power demonstrated with 8:1 and a 9:1 Dickson converter using soft-charging control. Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2013-12-10T17:34:20Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 May_Ryan.pdf: 15396066 bytes, checksum: 63f8ea78573780dfa2167645c2e8075b (MD5) Made available in DSpace on 2014-01-16T17:58:12Z (GMT). No. of bitstreams: 2 Ryan_May.pdf: 15396066 bytes, checksum: 63f8ea78573780dfa2167645c2e8075b (MD5) license.txt: 4058 bytes, checksum: 26c26be23384fe45876bfa5f701c6bd8 (MD5) http://hdl.handle.net/2142/46665 en Copyright 2013 Ryan May Soft Charging Dickson Switch Capacitor 1933 Electrical & Computer Engineering Electrical & Computer Engineering 1200 University of Illinois at Urbana-Champaign Thesis M.S. MS:Electr & Computer Eng-UIUC 10KS1200MS