Piezoelectric Energy Harvester

Overview

Piezoelectric Energy Harvester, PEH has been used to feed loads in military, health, animal detector, and many other applications. Many techniques have been used to extract the maximum power from piezoelectric, PZT material. A new SP-SSHI has been introduced in this patent using two capacitors to detect the flipping points of terminal voltage replacing many active elements in the other two circuits such as resistors, diodes, and op-amp. The new circuit showed a great reduction in losses, increased output power, increased efficiency, low cost, and increased reliability. The simulation results showed the superiority of the new circuit.

Our Research

This US patent was invented by SET Center Staff. This patent can be used in many applications such as Knee-energy Harvester for GPS Tracking, moving vehicles GPS tracking for security use, light up shoes, animal tracking, insulin pumping, and many medical applications. This new circuit increased the efficiency and reduced the cost considerably.

Technology Impact

• Cost reduction compared to conventional PEH
• Increased the reliability of the system

Prototype:Battery charger from vibration.

Current Applications:Battery charger.

Future Applications:as Knee-energy Harvester for GPS Tracking, moving vehicles GPS tracking for security use, light up shoes, animal tracking, insulin pumping, and many medical applications.

Industrial scope:Petrochemicals, synthetic diesel and synthetic hydrocarbons production.

Patent:Patent # US 20150311824 A1

Publications:Published