The term "Inverter" is associated with several different electronic applications.
In logic circuits "inverter" may be a logic inverter, the equivalent of a "Not" gate. In analogue signal processing an inverter can be a circuit which inverts the phase of the signal being transmitted. In power conversion applications an inverter is an electronic transformer which converts power from a Direct Current (D.C.) source into Alternating Current (A.C.) power. Power conversion inverters can be divided into two sub-categories, voltage-fed inverters and current-fed inverters. Voltage-fed inverters are more common than the current-fed inverters. The electronic transformers used in inverter circuits are often called inverter transformers. Inverters produce A.C. power by switching the polarity of the D.C. power source across the D.C. power source’s load. The early inverters used mechanical switches to do the switching. Vacuum tubes replaced mechanical switches in low power applications. Eventually semiconductor based switches (diodes, transistors, F.E.T.s, S.C.R.s, etc.) replaced both mechanical and vacuum tube switches.

Competitive Magnetics manufactures electronic transformers and Inverter transformers in a wide variety of shapes and sizes. This includes; various standard types of “core with bobbin” structures (E, EP, EFD, PQ, POT, U and others), toroids, and some custom designs. Our maximum weight and power limitations are 40 pounds of weight and 2 kilowatts of power. We have experience with foil windings, litz wire windings, and perfect layering. For toroids, special winding techniques such as sector winding, progressive winding, bank winding, and progressive bank winding can be accomplished to satisfy your dielectric, creepage distance, capacitance, and leakage inductance requirements.