Design Methodology for Dual Resonance Pulse Transformers

A systematic design tool for dual resonance pulse transformers has been developed and implemented. The specific transformer geometries studied are those composed of two helical coaxial, single layer coils on cylindrical winding forms. This design is typical of that currently in use and has been described in the literature. The requisite formulas for primary, secondary and mutual inductance are described in terms of geometry, coupling, and constraints necessary to arrive at a geometrically acceptable design. The effects of winding pitch, relative scale of primary and secondary, and end effects are discussed in terms of design constraints. Based on the model, several transformers have been designed and constructed. Experimental data are presented which quantifies the accuracy of our method and clearly demonstrates that efficient dual resonance pulse transformers can be designed and implemented with high confidence.