@inproceedings{063b482125dd4ed487f745d332002e62,
title = "Low power integrated on-chip current to digital converter",
abstract = "Integrated and efficient maximum power point tracking (MPPT) is a critical need in the photo-voltaic power generation system. One of the key components of the MPPT is current and power sensor. This paper presents a low-power integrated current sensor implemented in standard low-voltage CMOS technology. The proposed current sensor is a current-to-digital converter circuit, removing the need for an additional analog-to-digital converter for current digitization. The proposed PV MPPT circuit measures the current information from the DC-DC converter output ripple by charging and discharging a set of capacitive nodes, resulting in a digital current measurement for the MPPT circuit. The MPPT circuit along with the integrated circuit is presented. The current sensor is fabricated in a 0.7 micron CMOS technology and covers less than 4 mm2 of silicon area. The sensor power consumption is less than 27 mW, and provides an 8-bits digital representation of the converter load current with less than 0.4% error.",
keywords = "Current sensor, DC-DC converter, Data converter, MPPT, PV",
author = "Edgar Marti-Arbona and Debashis Mandal and Bertan Bakkaloglu and Sayfe Kiaei",
note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 ; Conference date: 15-03-2015 Through 19-03-2015",
year = "2015",
month = may,
day = "8",
doi = "10.1109/APEC.2015.7104419",
language = "English (US)",
series = "Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "May",
pages = "654--657",
booktitle = "APEC 2015 - 30th Annual IEEE Applied Power Electronics Conference and Exposition",
edition = "May",
}