Title
Efficiency improvement of integrated synchronous buck converter using body biasing for ultra-low-voltage applications.
Abstract
This article presents an integrated synchronous DC-DC buck converter for ultra-low-voltage and low-power applications with 200mV1V input and 100mV500mV output in 45nm CMOS technology. The proposed design uses over & under driving (OUD) and adaptive body biasing (ABB) methods to enhance the efficiency. In the proposed design, a control circuit with the least possible number of transistors is proposed which changes power MOSFETs threshold voltages adaptively depending on their operating modes by applying voltage to the body of the MOSFETs. The proposed method improves the conduction and switching losses simultaneously which achieves peak efficiency of 93%. The proposed converter has an acceptable performance and efficiency in sub-threshold voltages and also in the wide output current range.
Year
DOI
Venue
2017
10.1016/j.mejo.2017.03.007
Microelectronics Journal
Keywords
Field
DocType
Integrated DC-DC converter,Monolithic power supply,Synchronous buck converter,Body biasing,Ultra-low-voltage converter
Boost converter,Power MOSFET,Flyback converter,Forward converter,Ćuk converter,Electronic engineering,Low voltage,Engineering,Buck converter,Electrical engineering,Buck–boost converter
Journal
Volume
Issue
ISSN
63
C
0026-2692
Citations 
PageRank 
References 
1
0.39
24
Authors
3
Name
Order
Citations
PageRank
Rasoul Faraji181.57
Hosein Farzanehfard28817.81
Ehsan Adib36013.85