An “air core” transformer may be made by placing the windings close to each other. A step up or step down transformer is used to extend or decrease the AC voltage degree. galvanic isolation between circuits in addition to to couple stages of signal processing circuits may be provided by transformer. RF transformer sizes range from less than a cubic centimeter in quantity to models weighing tons of of tons and used to attach the ability grid. A transformer is a passive component that transfers electrical power from one circuit to a different. A varying current in any coil of the transformer causes a special magnetic flux within the transformer’s core, which causes a unique electrical pressure throughout the other coil. read more