Voltage gain and efficiency of a bi-layered radial mode piezoelectric/magnetoelectric solid-state transformer. Issue 174 (1st September 2016)

• Record Type: Journal Article
• Authors: Montanher, D. Z.; Freitas, V. F.; Silva, D. M.; Gaiotto, F. J.; Pereira, J. R. D.; Cótica, L. F.; Santos, I. A.; Garcia, D.; Eiras, J. A.; Guo, R.; Bhalla, A. S.
• Is Part Of: Integrated ferroelectrics. Issue 174(2016)
• Page Start: 210
• Page End: 216
• Publication Date: 2016-09-01
• Subjects: Piezoelectric transformers -- multifunctional devices -- efficiency; Ferroelectric devices -- Periodicals; Integrated circuits -- Periodicals; 537.244805
• DOI: 10.1080/10584587.2016.1196560
• Languages: English
• ISSNs: 1058-4587

Abstract

ABSTRACT: Piezoelectric transformers are devices able to raise an electrical input voltage with low energy losses. However, there are a few reports on the designing of multiferroic piezoelectric transformers. In this paper, an alternative bi-layer radial mode piezoelectric/magnetoelectric transformer approach by using a Nb doped (1 wt%) Pb(Zr)53 Ti47 O3 piezoelectric ceramic as actuator, and a La doped (5 wt%) (0.6)BiFeO3 -(0.4)PbTiO3 magnetoelectric ceramic as transducer has been tested. The voltage gain and the efficiency were determined as a function of the frequency and the load test resistance. A typical response, characteristic of bi-layered radial mode solid-state transformer, with a voltage gain of 2.5 at a load resistance of 7 kΩ, and an efficiency of 0.15 at load resistance 1 kΩ, were obtained. The results showed the feasibility of such multiferroic transformer for some practical smart and multifunctional devices applications.