Next Article in Journal
SEnviro: A Sensorized Platform Proposal Using Open Hardware and Open Standards
Next Article in Special Issue
Development of a Microfluidic-Based Optical Sensing Device for Label-Free Detection of Circulating Tumor Cells (CTCs) Through Their Lactic Acid Metabolism
Previous Article in Journal
Design of a Mobile Brain Computer Interface-Based Smart Multimedia Controller
Previous Article in Special Issue
Ultra-Sensitive Nanofiber Fluorescence Detection in a Microfluidic Chip
Article Menu

Export Article

Open AccessArticle
Sensors 2015, 15(3), 5531-5554; doi:10.3390/s150305531

An Ultra-Low Power CMOS Image Sensor with On-Chip Energy Harvesting and Power Management Capability

Department of Electrical and Computer Engineering, University Idaho, 875 Perimeter Drive MS 1023 Moscow, ID 83844-1023, USA
School of Electronics and Information, Hangzhou Dianzi University, No.1 Avenue, 2 Xiasha, Hangzhou 310018, China
Electrical and Electronic Engineering Department, Nanyang Technological University (NTU), 50 Nanyang Avenue, 639798, Singapore
Author to whom correspondence should be addressed.
Academic Editor: Kwang W. Oh
Received: 7 January 2015 / Revised: 28 January 2015 / Accepted: 4 March 2015 / Published: 6 March 2015
(This article belongs to the Special Issue On-Chip Sensors)
View Full-Text   |   Download PDF [1526 KB, uploaded 11 March 2015]   |  


An ultra-low power CMOS image sensor with on-chip energy harvesting and power management capability is introduced in this paper. The photodiode pixel array can not only capture images but also harvest solar energy. As such, the CMOS image sensor chip is able to switch between imaging and harvesting modes towards self-power operation. Moreover, an on-chip maximum power point tracking (MPPT)-based power management system (PMS) is designed for the dual-mode image sensor to further improve the energy efficiency. A new isolated P-well energy harvesting and imaging (EHI) pixel with very high fill factor is introduced. Several ultra-low power design techniques such as reset and select boosting techniques have been utilized to maintain a wide pixel dynamic range. The chip was designed and fabricated in a 1.8 V, 1P6M 0.18 µm CMOS process. Total power consumption of the imager is 6.53 µW for a 96 × 96 pixel array with 1 V supply and 5 fps frame rate. Up to 30 μW of power could be generated by the new EHI pixels. The PMS is capable of providing 3× the power required during imaging mode with 50% efficiency allowing energy autonomous operation with a 72.5% duty cycle. View Full-Text
Keywords: ultra-low power; CMOS image sensor; energy harvesting; power management; MPPT ultra-low power; CMOS image sensor; energy harvesting; power management; MPPT

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Cevik, I.; Huang, X.; Yu, H.; Yan, M.; Ay, S.U. An Ultra-Low Power CMOS Image Sensor with On-Chip Energy Harvesting and Power Management Capability. Sensors 2015, 15, 5531-5554.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top