Patent ID: 9601262
Date: 2017-03-21
CPC Classifications: H01F,H02M

Claim:
1. A coupled inductor, comprising: at least two input ends, an output end, a common magnetic core, at least two first windings, and at least two second windings; wherein the common magnetic core comprises at least two magnetic cylinders, and the number of the at least two magnetic cylinders corresponds to the number of the at least two input ends; one first winding and one second winding are twined in parallel on each cylinder among the at least two magnetic cylinders, and the first windings and the second windings on the at least two magnetic cylinders are mutually connected between the at least two input ends and the output end to form mutually coupled inductances and when currents that flow into the at least two input ends are equal, such that the first winding and the second winding on each cylinder generate opposite magnetic potentials; wherein the at least two magnetic cylinders comprise a first cylinder and a second cylinder; and the at least two input ends comprise a first input end and a second input end, wherein the first winding on the first cylinder and the first winding on the second cylinder are connected in parallel between the first input end and the output end, and the second winding on the first cylinder and the second winding on the second cylinder are connected in parallel between the second input end and the output end.