Searching. Please wait…

Nonlinear analysis of an injection-locked oscillator coupled to an external resonator

Abstract: This work investigates an injection-locked power oscillator inductively coupled to an external resonator for wireless power transfer. The system allows a high transfer efficiency, while ensuring a constant oscillation frequency versus the coupling factor, unlike free-running implementations. An analytical formulation provides insight into the impact of the coupling factor on the locked-operation ranges. Two types of qualitative behavior, delimited by a codimension-two bifurcation, are distinguished. The investigation is extended to a Class-E oscillator at 13.56 MHz, analyzed with a new harmonic balance (HB) method that provides the family of locked-solution curves in a single simulation. Very good agreement is obtained with the measurement results.

 Authorship: Ardila V., Ramirez F., Suarez A.,

 Fuente: IEEE Microwave and Wireless Components Letters, 2022, 32(6), 740-743

 Publisher: Institute of Electrical and Electronics Engineers Inc.

 Publication date: 01/06/2022

 No. of pages: 4

 Publication type: Article

 DOI: 10.1109/LMWC.2022.3163605

 ISSN: 1531-1309,1558-1764

 Spanish project: TEC2017-88242-C3-1-R

 Publication Url: