TY - GEN
T1 - An ultra-low power (ULP) zero-current-detector (ZCD) circuit for switching inductor converter applied in energy harvesting system
AU - Fan, Shiquan
AU - Xue, Zhongming
AU - Guo, Zhuoqi
AU - Gou, Wei
AU - Yang, Xu
AU - Geng, Li
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/2
Y1 - 2017/7/2
N2 - In this paper, we present an ultra-low power (ULP) zero-current-detector (ZCD) circuit by using sub-threshold design method and discontinued operating time to decrease power consumption, which can be widely used in switching inductor converters such as boost, buck or buck-boost converters. The designed ZCD circuit consumes only 40 nA quiescent current to realize nearly 70 dB DC gain and 650 kHz gain-bandwidth (GBW) when it operates. The main comparator of the ZCD circuit has high sensitivity and very low delay time to turn-off the synchronous switches of the DC-DC converter on time. The average quiescent current consumption is less than 1.6 nA because the operating time is only 40 μs under the minimum switching period of 1 ms. Finally, the designed ZCD circuit is used in a boost converter for vibrational energy harvesting applications.
AB - In this paper, we present an ultra-low power (ULP) zero-current-detector (ZCD) circuit by using sub-threshold design method and discontinued operating time to decrease power consumption, which can be widely used in switching inductor converters such as boost, buck or buck-boost converters. The designed ZCD circuit consumes only 40 nA quiescent current to realize nearly 70 dB DC gain and 650 kHz gain-bandwidth (GBW) when it operates. The main comparator of the ZCD circuit has high sensitivity and very low delay time to turn-off the synchronous switches of the DC-DC converter on time. The average quiescent current consumption is less than 1.6 nA because the operating time is only 40 μs under the minimum switching period of 1 ms. Finally, the designed ZCD circuit is used in a boost converter for vibrational energy harvesting applications.
KW - DC-DC converter
KW - synchronous switches
KW - ultra-low power
KW - vibrational energy harvesting
KW - zero-current-detector
UR - https://www.scopus.com/pages/publications/85050501422
U2 - 10.1109/EDAPS.2017.8276949
DO - 10.1109/EDAPS.2017.8276949
M3 - 会议稿件
AN - SCOPUS:85050501422
T3 - 2017 IEEE Electrical Design of Advanced Packaging and Systems Symposium, EDAPS 2017
SP - 1
EP - 3
BT - 2017 IEEE Electrical Design of Advanced Packaging and Systems Symposium, EDAPS 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 IEEE Electrical Design of Advanced Packaging and Systems Symposium, EDAPS 2017
Y2 - 14 December 2017 through 16 December 2017
ER -