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Patent Details

Applicant:
Indian Institute of Technology (IIT) Roorkee 
Title:
A lifetime enhancer for non-rechargeable battery powered wireless sensor node 
Inventor(s):
Pyari Mohan Pradhan and Ritesh Garg 
Applicant:
Indian Institute of Technology (IIT) Roorkee 
Application type:
Applied - 2019-10-31 
Application Number:
201911044035 
Applied at:
India 
Entered by:
Indian Institute of Technology (IIT) Roorkee 
Abstract:
The present invention provides a battery lifetime enhancer for non rechargeable batteries that steps-up the voltage of a battery when it is below its usable value. When the battery voltage decreases, the internal resistance of the battery increases and hence this device is efficient when used for low voltage application. The exact values of different components and battery ratings are highly dependent on the power requirements of the load. The battery lifetime enhancer is proposed to be used with non-rechargeable batteries, as rechargeable batteries cannot be safely over-discharged unlike its non-rechargeable counterpart. The device starts its operation when the battery is at its lowest usable voltage i.e. when the battery percentage is at 0% or 1.1 V as in the aforementioned case. The battery lifetime enhancer steps up the battery voltage to such a minimum voltage at which the device to be powered can be operational. To demonstrate the capability of the battery lifetime enhancer, it is used for extending the lifetime of non-rechargeable batteries used to power ZigBee nodes in a wireless sensor network. 

 
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