Determination of the ideal power inductor for energy

The basis for energy-efficient devices is essentially influenced by the power supply unit, where switch-mode topologies are replacing linear regulators. A few years ago, switching frequencies up to 300 kHz were widespread, whereas modern switching controllers usually clock with frequencies of 800 kHz and more. The switching losses, on the one hand, but also the power inductor losses, on the other, are important aspects in the design of switch-mode power supply units. New iron alloy group material compositions have reduced core material losses for high current power inductors. The online simulation platform REDEXPERT provides extremely realistic values for inductor losses and supports the selection of the appropriate inductor.

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