Patent ID: 9638727
Date: 2017-05-02
CPC Classifications: G01R,H01F

Claim:
1. A power inductor, comprising: a magnetic core; at least three lines, each having a first terminal and a second terminal, the at least three lines being wound around the magnetic core in parallel to form a winding, the lines proximate the first terminals departing from the magnetic core at a first position, and the lines proximate the second terminals departing from the magnetic core at a second position, wherein a first number of the at least three lines at the first terminals forms a first interface end, wherein a second number of the lines at the first terminals different from the first number of lines form a second interface end, and wherein all of the lines at the second terminals together form a third interface end; and a current sensor configured to measure a current flowing through the first number of the at least three lines exclusive of the second number of the at least three lines such that, when the first and second interface ends are coupled in common to an external device the current sensor measures a fraction of a total current passing between a combination of the first and second interface ends and the external device.