Design of Zero-Ripple-Current Coupled Inductors With PWM Signals in Continuous Conduction Mode

摘要: Coupled inductors are widely used in multiple outputs and interleaved dc–dc converters. Also filters often use coupled as their inductive part. A generalized design procedure is proposed this article focused on current ripple minimization applicable to exposed pulsewidth modulation signals continuous conduction mode. The provides a very large inductance for all windings but one. Compared other designs, it adapts the existing magnetic properties of device changing only ratio, simplifying manufacturing process. It based equivalent value its divergences. assumption applied that coupling coefficient among same, which an acceptable approximation many core architectures. theoretical results experimentally verified. Not almost zero achieved, also mass volume reduced compared noncoupled inductors. This additional advantage critical applications such aerospace.