Murata’s Innovative Transformer Targets High Power, High Frequency Applications

October 2, 2019 Alix Paultre

Murata’s latest transformer technology for high power, high frequency applications uses a novel winding technique to allow power and frequency levels higher than legacy winding methods. Murata’s pdqb winding technology enables operation up to around 400 kW that can operate at frequencies as high as 50 kHz. The pdqb winding technique overcomes skin and proximity effects, as well as other high-frequency losses.

Features include an increased working voltage and an elevated isolation voltage of up to 10 kV. The leakage inductance is highly controllable and interwinding capacitance is low. Each design can be optimized, and Murata can create custom transformers operating around 4-50 kHz with power ratings from 30 kW to 400 kW. The transformers can be designed with turn ratios from 1:1 to 10:1 with multiple secondary windings if desired and are capable of handling input and output voltages in the range 50 V to 1 kV.

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