A Single-Inductor Multiple-Output Auto-Buck-Boost DC-DC Converter With Tail-Current Control
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AbstractA single-inductor multiple-output (SIMO) auto-buck-boost dc-dc converter with proposed tail-current control to achieve fast and robust reference tracking of inductor current is proposed in this paper. Moreover, the proposed backward-Vx1 control algorithm and frequency-control loop enable the proposed SIMO dc-dc converter to operate at a fixed switching frequency and achieve high power-conversion efficiency in both the buck-dominated and boost-dominated cases. The proposed SIMO auto-buck-boost dc-dc converter has four output channels and is implemented in a standard 0.35-μm CMOS process. Measurement results show that the proposed dc-dc converter achieves a peak efficiency of more than 91% at a total output power of about 0.5 W and load transient response time of less than 80 μs.
All Author(s) ListZheng YQ, Ho M, Guo JP, Leung KN
Journal nameIEEE Transactions on Power Electronics
Volume Number31
Issue Number11
Pages7857 - 7875
LanguagesEnglish-United Kingdom
KeywordsAuto-buck-boost,cross regulation,single inductor multiple output (SIMO) dc-dc converter,tail-current control
Web of Science Subject CategoriesEngineering, Electrical & Electronic;Engineering

Last updated on 2021-18-09 at 23:45