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.

Original languageEnglish (US)
Title of host publicationConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages654-657
Number of pages4
Volume2015-May
EditionMay
DOIs
StatePublished - May 8 2015
Event30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 - Charlotte, United States
Duration: Mar 15 2015Mar 19 2015

Other

Other30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015
CountryUnited States
CityCharlotte
Period3/15/153/19/15

Fingerprint

Electronic circuit tracking
Sensors
Analog to digital conversion
DC-DC converters
Electric current measurement
Digital to analog conversion
Power generation
Integrated circuits
Electric power utilization
Silicon
Networks (circuits)
Electric potential

Keywords

  • Current sensor
  • Data converter
  • DC-DC converter
  • MPPT
  • PV

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Marti-Arbona, E., Mandal, D., Bakkaloglu, B., & Kiaei, S. (2015). Low power integrated on-chip current to digital converter. In Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC (May ed., Vol. 2015-May, pp. 654-657). [7104419] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC.2015.7104419

Low power integrated on-chip current to digital converter. / Marti-Arbona, Edgar; Mandal, Debashis; Bakkaloglu, Bertan; Kiaei, Sayfe.

Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC. Vol. 2015-May May. ed. Institute of Electrical and Electronics Engineers Inc., 2015. p. 654-657 7104419.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Marti-Arbona, E, Mandal, D, Bakkaloglu, B & Kiaei, S 2015, Low power integrated on-chip current to digital converter. in Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC. May edn, vol. 2015-May, 7104419, Institute of Electrical and Electronics Engineers Inc., pp. 654-657, 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015, Charlotte, United States, 3/15/15. https://doi.org/10.1109/APEC.2015.7104419
Marti-Arbona E, Mandal D, Bakkaloglu B, Kiaei S. Low power integrated on-chip current to digital converter. In Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC. May ed. Vol. 2015-May. Institute of Electrical and Electronics Engineers Inc. 2015. p. 654-657. 7104419 https://doi.org/10.1109/APEC.2015.7104419
Marti-Arbona, Edgar ; Mandal, Debashis ; Bakkaloglu, Bertan ; Kiaei, Sayfe. / Low power integrated on-chip current to digital converter. Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC. Vol. 2015-May May. ed. Institute of Electrical and Electronics Engineers Inc., 2015. pp. 654-657
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