Powering devices using RF energy harvesting

Inactive Publication Date: 2006-12-14
POWERCAST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0018] With this method and apparatus a device's power storage components do not require replacement, thus enabling the device to be perm

Problems solved by technology

Even with power conscious designs and the latest in battery technology, many devices do not provide the lifetime cost and maintenance requirements for applications that require a large number of untethered devices such as logistics, and building automation.
For both device types, scheduled power-source maintenance is costly

Method used

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  • Powering devices using RF energy harvesting
  • Powering devices using RF energy harvesting
  • Powering devices using RF energy harvesting

Examples

Experimental program
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Example

[0111] A complete understanding of the invention will be obtained from the following description when taken in connection with the accompanying drawing figures wherein like reference characters identify like parts throughout.

[0112] There is shown an apparatus 10 for an application. The apparatus 10 comprises a core device 22 preferably having an integrated circuit 36 for the application. The apparatus 10 comprises a power harvester 20 connected to the core device 22 to power the core device 22.

[0113] The apparatus 10 preferably includes an alternative power source 24 connected to the core device 22 to power the core device 22 in conjunction with the power harvester 20. Preferably, the apparatus 10 includes a power regulator 26 and / or power storage circuit 28 connected to the power harvester 20. The apparatus 10 preferably includes a power storage charger 30 connected to the power harvester 20. Preferably, the apparatus 10 includes a power storage connected to the power harvester 2...

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PUM

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Abstract

Disclosed is an apparatus for an application including a core device for the application. The apparatus includes a power (preferably RF energy) harvester connected to the core device to power the core device. Also disclosed is a method for an application. The method includes the steps of converting RF energy into usable energy. There is the step of powering the core device with the usable energy.

Description

FIELD OF THE INVENTION [0001] The present invention is related to the wireless powering of devices. More specifically, the present invention is related to the wireless powering of devices with a power harvester. BACKGROUND OF THE INVENTION [0002] As processor capabilities have expanded and power requirements have decreased there has been an ongoing explosion of devices that operate completely independent of wires or power cords. These “untethered” devices range from cell phones, and wireless keyboards to building sensors and active RFID tags. [0003] Engineers and designers of these untethered devices continue to have to deal with the limitations of portable power sources, primarily batteries as the key design parameter. While performance of processors and portable devices have been doubling every 18-24 months driven by Moore's law, battery technology in terms of capacity has only been growing at measly 6% per year. Even with power conscious designs and the latest in battery technolo...

Claims

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Application Information

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IPC IPC(8): H04B1/16
CPCG06K19/0707H04B1/1607H02J17/00H02J50/20H02J50/90H02J50/001H04B1/16G06K19/0702
Inventor SHEARER, JOHN G.GREENE, CHARLES E.HARRIST, DANIEL W.
Owner POWERCAST
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