Presentation of data on broad-band and pulse transformer cores

ADEQUATE information concerning the characteristics of available core materials is an essential tool of the transformer engineer. Not only must the information be accurate and complete but it should be presented in a form convenient for use. Present standard methods of presenting such information for use in designing pulse transformers are reviewed herein, and an improved method is proposed; this proposed method can also be employed, with slight modifications, for presenting data to be used in designing broad-band units. The new method is derived from an accurate equivalent circuit representation of a test core and coil, and enables the transformer engineer to predict the response and loss characteristics of a design with much greater accuracy and greater ease than is possible with data as now commonly presented.