High-efficiency peak-current-control non-inverting buck-boost converter using mode selection for single Ni-MH cell battery operation
- Authors
- Kim, Jong-Seok; Lee, Jae-Yoon Lee Departm; Choi, Byong-Deok
- Issue Date
- Oct-2015
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Citation
- 2015 Nordic Circuits and Systems Conference, NORCAS 2015: NORCHIP and International Symposium on System-on-Chip, SoC 2015, pp.1 - 4
- Indexed
- SCOPUS
- Journal Title
- 2015 Nordic Circuits and Systems Conference, NORCAS 2015: NORCHIP and International Symposium on System-on-Chip, SoC 2015
- Start Page
- 1
- End Page
- 4
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/156201
- DOI
- 10.1109/NORCHIP.2015.7364388
- ISSN
- 0000-0000
- 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.
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