Power conversion process in magnetoelectric gyrators
Abstract
We have investigated the power conversion and loss processes in magnetoelectric gyrators. Two types of loss mechanisms were identified by using a transformer-gyrator structure, which transfers power between magnetic and magnetomechanical forms. A missing portion of the power in a gyrator was then identified to be a returned power from the load resistor under low drive conditions. Under high drive conditions, decreases in both the magnetostriction and mechanical quality factor resulted in additional inefficiencies. Power transfer efficiencies of greater than 70% and 50% were achieved for magnetoelectric (ME) gyrators based on Metglas/Pb(Zr,Ti)O3 laminated composites under low power drive and high power density drive (60 W/in.3) conditions, respectively.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 04, 2017
- Source ID
- 10.1063/1.4999371
Entities
People
- Chung Ming Leung
- D. Viehland
- Jiang Li
- Xin Zhuang
Organizations
- Defense Advanced Research Projects Agency
- Virginia Tech