@inproceedings{0bdff40c8bd2491ab25f053f28e486ae,
title = "Merged-Two-Stage Resonant and PWM Soft-Charging of Hybrid-Switched-Capacitor DC-DC Converters",
abstract = "The efficiency and power density of switched-capacitor dc-dc converters are usually limited by the charge sharing loss of capacitors. In a merged-two-stage hybrid-switched-capacitor design, soft-charging can be achieved by merging a magnetic-based converter with a switched-capacitor-based converter. The magnetic-based converter functions as a current source to charge and discharge the switched capacitors without charge sharing loss. This paper investigates the output impedance of two types of merged-two-stage hybrid-switched-capacitor dc-dc converters with 1) resonant soft-charging, in which the switched-capacitors are soft-charged by sinusoidal current waveforms and 2) PWM soft-charging, in which the switched-capacitors are soft-charged by PWM current waveforms. A few circuit topologies leveraging the merged-two-stage soft charging mechanism are discussed. The effectiveness of the output impedance analysis is verified by SPICE simulations.",
keywords = "resonant converter, soft-charging, soft-switching, switched-capacitor converter",
author = "Yenan Chen and Jaeil Baek and Minjie Chen",
note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020 ; Conference date: 11-10-2020 Through 15-10-2020",
year = "2020",
month = oct,
day = "11",
doi = "10.1109/ECCE44975.2020.9235744",
language = "English (US)",
series = "ECCE 2020 - IEEE Energy Conversion Congress and Exposition",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "151--157",
booktitle = "ECCE 2020 - IEEE Energy Conversion Congress and Exposition",
address = "United States",
}