Interleaved Transformer/Inductor

摘要

An interleaved transformer or a transformer and integrated set of inductors formed via a magnetic structure comprising a set of E cores and an I core inserted between the set of E cores is provided in order to address issues that occur when a structured transformer is coupled together with inductor flux. Actual inductance exhibited by the transformers is controlled by a preselected precise gap between the I core and each of the E cores. The advantage of such a structured transformer cancels out the magnetic flux in certain legs of the magnetic structure requiring less magnetic material and thus, less core losses while improving the overall efficiency of a power supply.

主权项

1. An apparatus for doubling the current of a circuit via a full-bridge current-doubler rectifier, the apparatus comprising:
a three-core magnetic structure electrically coupled to an input circuit; a first drive signal driving a first set of transistors thereby causing a first voltage to be induced into a primary winding of the three-core magnetic structure; a second drive signal driving a second set of transistors thereby causing a second voltage to be induced into the primary winding of the three-core magnetic structure, wherein the first drive signal operates out-of-phase with the second drive signal and wherein, by the first drive signal operating out-of-phase, a varying magnetic field is impinged on a secondary winding of an output circuit electrically coupled to the three-core magnetic structure; the secondary winding detecting the varying magnetic field induced by the primary winding; and the output circuit outputting a current as a result of the varying magnetic field, wherein the current is doubled by summing an average current flowing through a first inductor winding and an average current flowing through a second inductor winding.