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 language | English (US) |
|---|---|
| Title of host publication | Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 654-657 |
| Number of pages | 4 |
| Volume | 2015-May |
| Edition | May |
| DOIs | |
| State | Published - May 8 2015 |
| Event | 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 - Charlotte, United States Duration: Mar 15 2015 → Mar 19 2015 |
Other
| Other | 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 |
|---|---|
| Country | United States |
| City | Charlotte |
| Period | 3/15/15 → 3/19/15 |
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Keywords
- Current sensor
- Data converter
- DC-DC converter
- MPPT
- PV
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
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 proceeding › Conference contribution
}
TY - GEN
T1 - Low power integrated on-chip current to digital converter
AU - Marti-Arbona, Edgar
AU - Mandal, Debashis
AU - Bakkaloglu, Bertan
AU - Kiaei, Sayfe
PY - 2015/5/8
Y1 - 2015/5/8
N2 - 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.
AB - 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.
KW - Current sensor
KW - Data converter
KW - DC-DC converter
KW - MPPT
KW - PV
UR - http://www.scopus.com/inward/record.url?scp=84937935361&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84937935361&partnerID=8YFLogxK
U2 - 10.1109/APEC.2015.7104419
DO - 10.1109/APEC.2015.7104419
M3 - Conference contribution
AN - SCOPUS:84937935361
VL - 2015-May
SP - 654
EP - 657
BT - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
PB - Institute of Electrical and Electronics Engineers Inc.
ER -