Nonlinear Design Technique for High-Power Switching-Mode Oscillators
Abstract
A simple nonlinear technique for the design of high-efficiency and high-power switching-mode oscillators is presented. It combines existing quasi-nonlinear methods and the use of an auxiliary generator (AG) in harmonic balance. The AG enables the oscillator optimization to achieve high output power and dc-to-RF conversion efficiency without affecting the oscillation frequency. It also imposes a sufficient drive on the transistor to enable the switching-mode operation with high efficiency. Using this AG, constant-power and constant-efficiency contour plots are traced in order to determine the optimum element values. The oscillation startup condition and the steady-state stability are analyzed with the pole-zero identification technique. The influence of the gate bias on the output power, efficiency, and stability is also investigated. A class-E oscillator is demonstrated using the proposed technique. The oscillator exhibits 75 W with 67% efficiency at 410 MHz.
Additional Information
© Copyright 2006 IEEE. Reprinted with permission. Manuscript received November 3, 2005; revised March 16, 2006. [Posted online: 2006-10-02] This work was supported by the Lee Center for Advanced Networking, California Institute of Technology. The authors would like to thank J.-M. Collantes, University of the Basque Country, Bilbao, Spain, for helpful comments.Files
| Name | Size | Download all |
|---|---|---|
|
md5:7f42febdc47b42e8ba8098b2508c6184
|
717.9 kB | Preview Download |
Additional details
- Eprint ID
- 5519
- Resolver ID
- CaltechAUTHORS:JEOieeetmtt06b
- Created
-
2006-10-20Created from EPrint's datestamp field
- Updated
-
2021-11-08Created from EPrint's last_modified field