Title
High Frequency And High Efficiency Dc-Dc Converter With Sensorless Adaptive-Sizing Technique
Abstract
A high frequency and high efficiency DC-DC converter with sensorless adaptive-sizing technique is proposed. Instead of conventional adaptive-sizing technique with current sensor, the proposed converter estimates the load current according to the output voltage of error amplifier for switch scaling. The elimination of current sensor reduces power consumption, thus improving efficiency further. This design is validated through simulation in a 0.18 mu m CMOS process. At switching frequency of 150 MHz and light-load of 20 mA, the proposed converter achieves a high efficiency of 82.4%, while it is 73.7% with conventional adaptive-sizing technique, and 62.4% without adaptive-sizing technique.
Year
DOI
Venue
2020
10.1587/elex.16.20190719
IEICE ELECTRONICS EXPRESS
Keywords
Field
DocType
DC-DC converter, high frequency, light-load efficiency, adaptive-sizing, sensorless
Computer science,Electronic engineering,Sizing,Dc dc converter
Journal
Volume
Issue
ISSN
17
3
1349-2543
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Xin Cheng100.34
Wanjing Shao200.34
Yongqiang Zhang3439.06
Jianmin Zeng400.34
Zhang Zhang558.09