TX to Ae

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Preface

Ch 2


1. An Introduction to AC Electrical Theory.
Contents.
Forward.
Part 1:

Basic electrical formulae. Resonance. Fields. Impedance, resistance, and reactance. Vectors and scalars. Phasors. Voltage magnification and Q. Power factor and scalar product.
Part 2:
Complex numbers. Complex arithmetic. Impedances in parallel. Parallel resonance. Dynamic resistance. Double slash notation. Parallel to series transformation. f and Q of parallel impedance. Magnitude of parallel impedance. Series to parallel transformation. Parallel resonator in parallel form. Imaginary resonance and critical resistance. Phase analysis. Resistance tuning?
Part 3:
Phasor Theorems. Generalistion of Ohm's Law General statement of Joule's law. Bandwidth. DeciBels and Logarithms. Bandwidth of a series resonator. Centre frequency. A sensible definition for Q0. Bandwidth function in terms of Q0.
Part 4:
Output impedance and maximum power transfer. The potential divider. Output impedance of a potential divider. Measuring source resistance. Error analysis. Antenna system Q. The basic impedance transformer. Auto transformers. Continuously variable auto transformer. Prototype impedance-matching network.
Part 5:
Admittance, conductance, susceptance. Reciprocal space counterparts. Parallel resonator bandpass filter. Unloaded Q of a parallel resonator. Current magnification.

References for chapter 1.


Romanian: Transferul maxim de putere activã cãtre sarcinã, by Valericã Costin YO7AYH .

Unfinished sections.


© D W Knight 2007.
David Knight asserts the right to be recognised as the author of this work.

TX to Ae

-

Preface

Ch 2