Würth Electronics has expanded its WE-MCRI product series with the new 1090HL variant (HL = High Leakage), a coupled inductor specifically designed to improve the performance of SEPIC, ZETA and Ćuk converters. This unique double choke takes an unconventional approach by deliberately harnessing leakage inductance, which is normally treated as a parasitic element in conventional designs. The coupled inductor enables more effective filtering for improved EMC performance with a far more compact design.
By using the moulded double choke, which measures just 11 × 10 × 9 mm, ripple current reduction can be achieved with a lower inductance value. Cost and space are reduced compared with using two separate inductors. This special component also requires a smaller AC coupling capacitor, without sacrificing efficiency. This also enables a more compact design. As a moulded coupled inductor, this component delivers temperature-stable and soft saturation performance.
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