Electronic Products & Technology

Resonant transformer, inductor saves space, simplifies pcb layouts

Stephen Law   

Electronics Power Supply / Management capacitor inductor power

VISHAY INTERTECHNOLOGY MRTI5R5EZ  Vishay Custom Magnetics 5.5 kW transformer for inductor-inductor-capacitor (LLC) applications features both the transformer and an integrated inductor in a single package. Designed to save pcb space, while simplifying layouts and reducing component mounting requirements, device provides fully tunable magnetizing and leakage inductance with minimal parasitic variation. Device is the first transformer of its kind to utilize a second middle transformer leg to complete the resonant inductor portion of the circuit. Other implementations require an additional magnetic core to deliver the same performance. Not only does this unique construction save space, but it also simplifies designs by eliminating the need for interconnects or jumpers from the resonant inductor to the transformer’s winding. Device features operating frequencies from 100kHz to 350kHz, rated power from 4kW to 6kW with 400V to 800V input voltage, and rated current to 28A.

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