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Applicant:
Indian Institute of Technology (IIT) Patna 
Title:
Dielectric elastomer transducer based exoskeleton type knee motion harvester 
Inventor(s):
Dr. Karali Patra, Mr. Sujit Kumar Sahu 
Applicant:
Indian Institute of Technology (IIT) Patna 
Application type:
Applied - 2018-02-12 
Application Number:
201831005297 
Applied at:
India 
Entered by:
Indian Institute of Technology (IIT) Patna 
Abstract:
The present disclosure provides an exoskeleton type energy harvester which is capable of converting mechanical energy of knee joint to useful 5 electrical energy. The energy harvester consists of at least a dielectric elastomer transducer setup, an electrical charging circuit, a discharging circuit and an exoskeleton to be fitted at the knee joint using some fixing element such as velcro. The exoskeleton comprises of two links which are connected with a revolute joint and the same is 10 connected to the dielectric elastomer transducer setup using flexible hook and extended link. The dielectric elastomer transducer setup comprises of a soft dielectric elastomer which is sandwiched between two compliant electrodes and a frame to hold the dielectric elastomer. The soft dielectric elastomer with carbon electrodes forms a variable capacitor with two electrical terminals one of which is 15 connected to charging circuit and another is connected to discharging circuit. The exoskeleton knee energy harvester gathers the mechanical energy produced from normal walking of human subject and converts it into electrical energy  

 
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