TRANSFORMERS

The name transformers is derived from the fact that when two coils are placed in close inductive proximity to one another the lines of force from one cut across the the turns of the other inducing an ac current, energy is transformed from one winding to another and this is called transformer action. There are a great variety of transformers for a variety of applications including power transformers, audio transformers and rf transformers among others. All work on the above principle. Power transformers as the name implies a power transformer is designed to usually translate voltage from one level to another. Another type called a current transformer will not be discussed here. The schematic of a transformer is depected in figure 1 below. Consider also the topics covered under where power transformers are used.