A Multiphase Synchronous Buck Converter With a Fully Integrated Current Balancing Scheme
- Title
- A Multiphase Synchronous Buck Converter With a Fully Integrated Current Balancing Scheme
- Author
- 유창식
- Keywords
- BCDMOS; current balancing; current sensor; inductor dc resistance (DCR); multiphase buck converter
- Issue Date
- 2015-09
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Citation
- IEEE TRANSACTIONS ON POWER ELECTRONICS, v. 30, NO 9, Page. 5159-5169
- Abstract
- A multiphase synchronous buck converter has been developed, in which the number of switching phases is determined by the sensed average load current. The maximum number of switching phases is four. The dc resistance (DCR) of switching inductor is used to detect the average current, which is also utilized to balance the load current among the multiple switching phases. The instantaneous inductor current is sensed as well to generate the pulsewidth modulation (PWM) signal to switch the inductors. The multiphase synchronous buck converter implemented in a 0.13-mu m BCDMOS process shows 91.1% maximum power efficiency when the input voltage is 2.8V, output voltage is 1.0V, and output current is 2.0 A.
- URI
- http://ieeexplore.ieee.org/abstract/document/6949694/http://hdl.handle.net/20.500.11754/27710
- ISSN
- 0885-8993; 1941-0107
- DOI
- 10.1109/TPEL.2014.2368130
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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