Vol. 13, no.1, 2021


Controllable Inductors and Transformers Based On Ferromagnet-Piezoelectric Heterostructures

Leonid Yu. Fetisov, Dmitry V. Chashin, Yuri K. Fetisov

MIREA - Russian Technological University, http://www.mirea.ru/
78 Vernadsky Avenue, Moscow 119454, Russian Federation
E-mail: fetisovl@yandex.ru, chashindv@yandex.ru, fetisov@mirea.ru

Received January 19. 2021, peer-reviewed January 26.2021, accepted January 31.2021

Abstract: The elements of electrical circuits, which inductance L can be tuned electrically (the so-called "inductors"), and transforemers are used in modern electronics, radio engineering and low-power energy for galvanic isolation of circuits and converting voltage amplitudes. In this work, new devices of this type have been manufactured and investigated, using the magnetoelectric effect in ferromagnetic-piezoelectric heterostructures. The inductance of the manufactured inductor is tuned by 400% by a control electric field of up to 10 kV/cm applied to the piezoelectric layer of the structure, and by 1000% by an external magnetic field of up to 10 Oe, acting on the structure. The transformer operates in the range of input voltages of 0-8 V, has a power transfer coefficient of 30% and a voltage transformation ratio of 0-14, tunable by a control magnetic field of up to 80 Oe. Methods for calculating the characteristics of magnetoelectric inductor and transformer are described.

Keywords: magnetoelectric effect, transformer, inductor, piezoeffect, magnetostriction

UDC 538.955; 538.956

RENSIT, 2021, 13(1):27-38. DOI: 10.17725/rensit.2021.13.027.

Full-text electronic version of this article - web site http://en.rensit.ru/vypuski/article/372/13(1)27-38e.pdf