Patent ID: 9571034
Date: 2017-02-14
CPC Classifications: H01F,H03B,H03K

Claim:
1. An apparatus, comprising: N circuit stages coupled in a loop, N>2, each of the N circuit stages having a respective inductive element that overlaps with inductive elements from two adjacent circuit stages in the loop to form N pairs of inductively coupled elements, wherein the N circuit stages include a first circuit stage having a first inductive element, a second circuit stage having a second inductive element, and a third circuit stage having a third inductive element, wherein the first inductive element includes a first coil having a first winding direction and a second coil having a second winding direction inverted from the first winding direction, the first coil overlapping with the second inductive element of the second circuit stage and the second coil overlapping with the third inductive element of the third circuit stage.