High frequency matrix transformer
AssigneeFMTT, Inc.
InventorEdward Herbert
Life of this patent
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AssigneeFMTT, Inc.
InventorEdward Herbert
Estimating the term…
A high frequency matrix transformer comprises a plurality of interdependent magnetic elements interwired as a transformer. The various component parts of the high frequency transformer are arranged and interwired to provide a transformer having very low leakage inductance and very good coupling from the primary to the secondary. The high frequency matrix transformer is particularly well adapted for transformers requiring high equivalent turns ratios, high frequency, high power, and high dielectric isolation. It can have a plurality of parallel secondaries, which can source current to parallel rectifier circuits with current sharing. It can also have a plurality of parallel primary circuits, which also will current share, to balance the load between source switching circuits, or to provide dual input voltage capability (i.e., 120/240 volts). The high frequency matrix transformer tends to be spread out, and can be very flat, making it eaasy to ventilate or heat sink. The high frequency matrix transformer having push pull windings can include the primary switching means and secondary rectifying means within its windings, to that the transformer as a whole has direct current inputs and outputs.
A high frequency matrix transformer, comprising:
A matrix transformer having at least one push pull primary winding, and having each side of the push pull primary winding interrupted by a switching means to effect push pull excitation.
A matrix transformer having at least one push pull secondary winding, and having each side of the push pull secondary interrupted by a rectifying means, to effect rectifying of the push pull secondary winding's output.
A circuit using a high frequency matrix transformer having at least one push pull primary winding, and having a metal oxide silicon field effect transistors as switching means to effect push pull excitation in which the drain to source capacitance of the metal oxide silicon field effect transistors absorbs the stored energy of the push pull primary winding as the metal oxide silicon field effect transistor is turned off during push pull operation.
A circuit employing a high frequency matrix transformer having a plurality of secondary winding, and having a rectifying means and a filtering means for each of the secondary windings.
Dependencies are inferred from the claim text.