Referenced Items are not available for this document.
This paper presents a high-efficiency positive buck- boost converter with mode-select circuits and feed-forward techniques. Four power transistors produce more conduction and more switching losses when the positive buck-boost converter operates in buck-boost mode. Utilizing the mode-select circuit, the proposed converter can decrease the loss of switches and let the positive buck-boost converter operate in buck, buck-boost, or boost mode. By adding feed-forward techniques, the proposed converter can improve transient response when the supply voltages are changed. The proposed converter has been fabricated with TSMC 0.35-μm CMOS 2P4M processes. The total chip area is 2.59 × 2.74 mm2 (with PADs), the output voltage is 3.3 V, and the regulated supply voltage range is from 2.5-5 V. Its switching frequency is 500 kHz and the maximum power efficiency is 91.6% as the load current equals 150 mA.
Published in:
Power Electronics, IEEE Transactions on
(Volume:28
,
Issue:
9
)
Date of Publication: Sept. 2013
- Page(s):
- 4240 - 4247
- ISSN :
- 0885-8993
- INSPEC Accession Number:
- 13342494
- Digital Object Identifier :
- 10.1109/TPEL.2012.2223718
- Product Type:
- Journals & Magazines
- Date of Publication :
- 11 October 2012
- Date of Current Version :
- 15 February 2013
- Issue Date :
- Sept. 2013
- Sponsored by :
- IEEE Power Electronics Society
About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies
A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2013 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.
