Charge-control analysis of class E tuned power amplifier with only one inductor and one capacitor in load network
- 1 March 1984
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electron Devices
- Vol. 31 (3) , 366-373
- https://doi.org/10.1109/t-ed.1984.21529
Abstract
The following paper presents the charge-control analysis of operation of the transistor as a switch in the inverter circuit in which the collector current is constant while the transistor is saturated. This paper presents the charge-control analysis of the class E high-efficiency switching-mode tuned power amplifier with only 1 inductor and 1 capacitor in the load network, along with experimental results. In this amplifier, the collector current increases linearly with time while the transistor is saturated. We assume linear charge parameters of the transistor, and rectangular-wave base-drive current. The following are determined: the waveforms of all components of the base current and the base stored charge, the switching times, the driving power, and the power gain. A new definition of the overdrive factor of the transistor is introduced and the condition of the transistor saturation is discussed. It is shown that the base current necessary to drive the transistor to the edge of saturation increases with frequencyfforf > f_{\beta}.Keywords
This publication has 24 references indexed in Scilit:
- Accurate measurement of lifetime of excess base stored charge at high collector currentsIEEE Transactions on Electron Devices, 1984
- Idealized operation of the class E tuned power amplifierIEEE Transactions on Circuits and Systems, 1977
- Application of a charge-control model to high-voltage power transistorsIEEE Transactions on Electron Devices, 1976
- Switching waveform prediction of a simple transistor inverter circuitIEEE Transactions on Electron Devices, 1965
- Comparison of large signal models for junction transistorsProceedings of the IEEE, 1964
- Charge control analysis of transistor storage time dependence on input "On" pulse widthIEEE Transactions on Electron Devices, 1963
- Predicting transistor storage time for nonstep, quasi-voltage inputsIRE Transactions on Electron Devices, 1962
- Charge analysis of transistor operation including delay effectsIRE Transactions on Electron Devices, 1961
- A Study of the Charge Control Parameters of TransistorsProceedings of the IRE, 1960
- Stored Charge Method of Transistor Base Transit AnalysisProceedings of the IRE, 1959