ABSTRACT

This chapter begins by highlighting some basic properties of magnetic circuits in order to better appreciate the properties of the ideal transformer. It specifies these properties and considers their implications carefully leading to the circuit attributes of the ideal transformer. The chapter considers a special case of the linear transformer, namely, the ideal transformer, which is of considerable practical and theoretical importance. It discusses reflection of circuits from one side of the transformer to the other as an aid to analyzing circuits involving ideal transformers. The chapter presents a special case of the ideal transformer, namely, the ideal autotransformer. Small inductors and transformers at power and audio frequencies have laminated cores that are usually rectangular in shape or of the shell type. The chapter ends with transformer imperfections, their implications, and how they are dealt with in practical transformers.