RF CIRCUIT POWERED BY A PIEZOELECTRIC GENERATOR
Maxsuel Ferreira Cunha1; Cícero da Rocha Souto1; Alan Gonçalves Paulo e Silva1; Alexsandro José Virgínio dos Santos1; José Marques Basílio Sobrinho1; Andreas Ries1
1 Federal University of Paraiba - UFPB
Baixar PDF doi:10.20906/CPS/CBA2018-1383
Resumo
This study presents a piezoelectric generator powering a radio frequency (RF) transmission system. The objective of the research is to propose a wireless communication system that is self-powered without using conventional batteries. Electricity is generated from the mechanical impact of a small hammer on a piezoelectric stack. An electronic circuit was developed in order to adapt the piezo-generated voltage to levels compatible with the regulatory circuits. The voltage was adjusted to operate a small low-power RF signal transmitter. A receiver circuit validated the message sent by the transmitter. This work presents the voltages produced by the piezoelectric generator and the characteristics of the electronic circuits: the power consumption, transmission response, receiving response considering data sent by the self-powered transmitter.
Palavras-chave: Energy Harvesting; Piezoelectric Materials; Self-powering; RF Communication