Multilevel Step-Down Resonant Switched-Capacitor Converters With Full-Range Regulation

Multilevel resonant switched-capacitor converters (RSCCs) have drawn attention in large step-down voltage conversion but are hindered in a wide area of applications due to limited voltage regulation range. A new full-range regulation (FR) method for multilevel step-down RSCCs is proposed in this art...

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Vydáno v:IEEE transactions on industrial electronics (1982) Ročník 68; číslo 10; s. 9481 - 9492
Hlavní autoři: Xie, Wenhao, Brown, Benjamin Y., Smedley, Keyue Ma
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York IEEE 01.10.2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
Capacitors
Converters
Electric potential
Energy conversion efficiency
Fibonacci numbers
Full-range regulation (FR)
Inductors
MOSFET
Multilevel
resonant switched-capacitor converter (RSCC)
Stress
Switches
Switching
Switching frequency
Voltage
Voltage control
ISSN:0278-0046, 1557-9948
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Shrnutí:Multilevel resonant switched-capacitor converters (RSCCs) have drawn attention in large step-down voltage conversion but are hindered in a wide area of applications due to limited voltage regulation range. A new full-range regulation (FR) method for multilevel step-down RSCCs is proposed in this article. As an example of the proposed FR method, the fixed on-time modulation for modified Dickson RSCC is provided. In addition to full-range voltage regulation, the multilevel RSCCs with the proposed FR method feature complimentary driving signals, zero voltage switching turn- on for switches, zero current switching turn- off for diodes, even switch voltage stress, even diode voltage stress, high active switch utilization, high efficiency, and high power density. A modified Dickson RSCC prototype was built to validate the proposed FR method. The proposed FR method is further extended to series-parallel RSCCs and Fibonacci RSCCs.
Bibliografie:ObjectType-Article-1
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content type line 14
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2020.3022494