Cart (Loading....) | Create Account
Close category search window

Real-time current-waveform sensor with plugless energy harvesting from AC power lines for home/building energy-management systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)

Home/building energy-management systems (EMSs) driven by information technology are expected to be key to the achievement of an upgraded energy infrastructure, such as Smart Grid. While EMS may offer monitoring, reporting, and control of energy usage, these functions simply track intermittently the energy consumption and operational states of certain appliances and equipments. Further, since their sensing devices are not small, they cannot be attached to every appliance or piece of equipment. Some EMSs gather information, rather, at the power-distribution-board level or the multi-output-tap level. We report here a TX-integrated battery-free real-time current-waveform sensor. It is small enough to be attached to any piece of equipment for continuous power-consumption monitoring. Its key features are : 1) plugless energy harvesting (EH) from AC power lines, 2) real-time sensing and transmitting that use a half-cycle time-to-digital converter (TDC) to detect detailed information on current-wave forms with the precise time-resolution, and 3) asymmetrical power consumption, which helps to achieve high-power RF transmission with a limited EH power supply. Our sensor provides the 1mW power supply from an EH unit, as well as the -5.5dBm RF output power at the 50kS/s sampling with a 1mW EH power supply. We also demonstrate transmission of sensed current-waveform information of several appliances such as a hair dryer, a TV, a notebook PC.

Published in:

Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2011 IEEE International

Date of Conference:

20-24 Feb. 2011

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.