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High-efficiency peak-current-control non-inverting buck-boost converter using mode selection for single Ni-MH cell battery operation

Title
High-efficiency peak-current-control non-inverting buck-boost converter using mode selection for single Ni-MH cell battery operation
Author
최병덕
Keywords
Batteries; Voltage control; Power conversion; Inductors; Voltage measurement; Switches; CMOS integrated circuits
Issue Date
2015-10
Publisher
IEEE
Citation
Nordic Circuits and Systems Conference (NORCAS): NORCHIP & International Symposium on System-on-Chip (SoC), 2015 , Page. 1-4
Abstract
A peak-current-controlled non-inverting buck-boost converter with mode selection scheme for a single Ni-MH cell battery operation is proposed. In order to extend a run time of Ni-MH battery, mode selection circuit automatically puts the converter into buck, boost, or buck-boost modes by comparing input and output voltages. Among the three modes, operation range of the buck-boost mode is designed to be minimized since its power conversion efficiency is the smallest. The proposed converter is implemented in a 0.18 μm CMOS technology, and the chip area is 2.31 mm2. The experimental results show that the maximum power conversion efficiency of the proposed non-inverting buck-boost converter is enhanced to 88% from 76% which is that of a conventional non-inverting buck-boost converter.
URI
http://ieeexplore.ieee.org/document/7364388/http://hdl.handle.net/20.500.11754/27977
ISBN
978-1-4673-6576-5
DOI
10.1109/NORCHIP.2015.7364388
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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