An Error-Based Controlled Single-Inductor 10-Output DC-DC Buck Converter With High Efficiency Under Light Load Using Adaptive Pulse Modulation

An Error-Based Controlled Single-Inductor 10-Output DC-DC Buck Converter With High Efficiency Under Light Load Using Adaptive Pulse Modulation

An error-based control method is proposed for a single-inductor multiple-output (SIMO) converter that maintains high efficiency under various load conditions. A peak efficiency of 88.7% was achieved with one output (I O1 ) of 5 mA, while the other outputs are at 432 mA. A hybrid topology composed of...

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Veröffentlicht in:IEEE journal of solid-state circuits 2015-12, Vol.50 (12), p.2825-2838
Hauptverfasser: Jung, Min-Yong, Park, Sang-Hui, Bang, Jun-Suk, Cho, Gyu-Hyeong
Format: Artikel
Sprache:eng
Schlagworte:
Inductors
Power generation
Pulse modulation
SIMO
Switches
switching converters
Switching frequency
Transient analysis
Voltage control
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container_end_page 2838
container_issue 12
container_start_page 2825
container_title IEEE journal of solid-state circuits
container_volume 50
creator Jung, Min-Yong
Park, Sang-Hui
Bang, Jun-Suk
Cho, Gyu-Hyeong
description An error-based control method is proposed for a single-inductor multiple-output (SIMO) converter that maintains high efficiency under various load conditions. A peak efficiency of 88.7% was achieved with one output (I O1 ) of 5 mA, while the other outputs are at 432 mA. A hybrid topology composed of a switching converter and a linear regulator is also presented for fast load transient response. The proposed SIMO buck converter was fabricated with a 1P4M 0.35 μm BCD process and has 10 independently regulated outputs. The measured load transient waveform shows cross regulation of 0.1 mV/mA and a load transient of 0.17 mV/mA. This was achieved under load transient conditions for one output (I O9 ) in between 1 mA and 100 mA with the other outputs at 422 mA.
doi_str_mv 10.1109/JSSC.2015.2471839
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subjects Inductors
Power generation
Pulse modulation
SIMO
Switches
switching converters
Switching frequency
Transient analysis
Voltage control
title An Error-Based Controlled Single-Inductor 10-Output DC-DC Buck Converter With High Efficiency Under Light Load Using Adaptive Pulse Modulation
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