COUPLING INDUCTOR AND POWER CONVERTER

摘要

A coupling inductor and a power converter. The coupling inductor comprises a magnetic core and at least two windings. The magnetic core comprises at least two first magnetic columns (111, 112), at least one second magnetic column (121) and two opposite magnetic yokes (131, 132). The at least two first magnetic columns and the at least one second magnetic column are arranged between the two opposite magnetic yokes. The at least two windings (151, 152) are wound on the at least two first magnetic columns respectively. The at least two windings are in one-to-one correspondence with the at least two first magnetic columns. By adding the second magnetic column between the two opposite magnetic yokes of the coupling inductor, the leakage inductance of the coupling inductor is increased, and accordingly the requirement for system stability is met when the coupling inductor is connected into the power converter.