Online design tool receives an upgrade
eiSos developers can now simulate the power inductors from Würth Elektronik via the company’s updated RED EXPERT. The losses determined with RED EXPERT are based on current and voltage waveforms typical in applications. Besides the core and winding losses, they also include the losses arising from the specific geometries of the inductance, such as the air gap.
With this upgrade the losses for buck and boost converters in discontinuous conduction mode can be accurately determined. Registered users even get the different losses of all the inductors clearly presented.
On top, this upgrade contains a new loss feature which has been added to calculate losses of any inductor irrespective of converter topology.
This AC loss model works very accurately for duty cycles from 0.1 to 0.9 and switching frequencies from 10kHz to 10MHz. RED EXPERT enables precise loss calculation, with sinusoidal excitation, but is derived and validated from measurements of the power inductors in a switching controller set-up.
RED EXPERT is freely available in German, English, Spanish, Japanese, Russian and Chinese at www.we-online.com/redexpert.
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