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
- Buck-boost converter; DC-DC converter; Switch-mode power supply; Mode selection; Peak-current control
- Issue Date
- 2016-07
- Publisher
- SPRINGER
- Citation
- ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING (2016.11), v. 89, Page. 297-306
- Abstract
- A peak-current-controlled non-inverting buck-boost converter with a mode selection scheme for a single Ni-MH cell battery operation is proposed. In order to extend the run time of a Ni-MH battery, the proposed mode selection circuit automatically puts the converter into a buck, boost, or buck-boost mode by comparing the input and output voltages. Among the three modes, the operation range of the buck-boost mode is designed to be minimized since its power conversion efficiency is lowest. The proposed mode selection circuit is applicable to peak-current control and variable output voltage converters. The frequency compensation circuit is designed to guarantee a sufficient phase margin for all three modes. The proposed converter is implemented in a 0.18 mu m CMOS technology, and the chip area is 2.31 mm(2). 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 the conventional non-inverting buck-boost converter.
- URI
- https://link.springer.com/article/10.1007%2Fs10470-016-0787-0https://repository.hanyang.ac.kr/handle/20.500.11754/74535
- ISSN
- 0925-1030; 1573-1979
- DOI
- 10.1007/s10470-016-0787-0
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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