Power amplification interface circuit for broadband piezoelectric energy harvester. (April 2020)

• Record Type: Journal Article
• Authors: Asthana, Prateek; Khanna, Gargi
• Is Part Of: Microelectronics journal. Volume 98(2020)
• Publication Date: 2020-04
• Subjects: Interface circuitry -- Current amplification -- Transistor-based circuitry -- Electrical equivalent model -- Amplified generated power; Microelectronics -- Periodicals; Microélectronique -- Périodiques; Microelectronics; Electronic journals; Journals - contents and abstracts; Periodicals; 621.3805
• DOI: 10.1016/j.mejo.2020.104734
• Languages: English
• ISSNs: 0959-8324

Abstract

Abstract: Amplifying energy from a broadband energy harvester requires interfacing of energy harvester with energy harvesting circuitry. To interface the harvester, a mechanical and electrical equivalent model is developed. The resonance frequencies of these models differ with the finite element model by less than 5 % . A developed electrical equivalent model is interfaced with basic and synchronous circuit methodologies providing a maximum power of 38.32 μW. A novel energy harvesting circuit consisting of the Schottky diode bridge rectifier and double voltage divider circuit is able to provide an output power of 27.87 mW.