Reconfigurable Multiphase Switched Capacitor Converters Based on Non-Binary Numeral Systems: Ternary Case
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Date
2017-05-25
Authors
Zhaikhan, Ainur
Kypshakpayev, Yerden
Ruderman, Alexander
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE, Brasov, Romania
Abstract
Multiphase Switched Capacitor Converters (SCC)
recently gained attention due to their ability to generate different
voltage Target Ratios (TR). One of the reconfigurable multiphase
SCC topologies is a binary one. For this SCC, the switched
capacitor normalized voltage distribution is binary as the name
implies and each capacitor represents a single bit. This paper
suggests SCC topologies that are based on non-binary numeral
systems – ternary, quaternary etc. The potential benefits of such
SCC topologies compared with binary include reduced switched
capacitor stored energy and equivalent resistance. The paper
investigates into ternary SCC voltage TR set, possible balanced
switching implementation and equivalent resistance calculation
using charge flow balance analysis. Multiphase balanced
switching allows for essential switched capacitor and peak-topeak
output voltage ripple (or output filter capacitance)
reduction.
Description
Keywords
DC-DC power convertor, switched capacitor converter, target ratio, multiphase switching
Citation
Zhaikhan, Ainur et.al. (2017) Reconfigurable Multiphase Switched Capacitor Converters Based on Non-Binary Numeral Systems: Ternary Case. IEEE, Brasov, Romania