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Class E power amplifier steady-state solution as series in 1/Q

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2 Author(s)
Kimber, D.P. ; Sch. of Eng., Univ. of Birmingham, UK ; Gardner, P.

The Heaviside operational calculus is used to obtain general expressions for the charge and current in the output circuit of a class E power amplifier. The class E conditions of zero charge and current at the switching point are applied, together with the steady-state requirement that the solution should be periodic. For the case of 50% duty cycle, circuit parameters can be obtained in the form of power series in Q-1. Series are given for component values, power, efficiency and total harmonic power, in some cases as a function of normalised frequency offset.

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Circuits, Devices and Systems, IEE Proceedings -  (Volume:151 ,  Issue: 6 )