Modularized planar coil and planar transformer using the same

摘要

Disclosed is a planar coil module comprising a first planar coil, a second planar coil and a connection portion to connect the first and second planar coils in series. The first and second coils respectively include an outer loop and an inner loop, connected in series and separated by a first distance, with the inner loops of the first and second planar coils connected by the connection portion. The first and second planar coils are provided in two neighboring planes and are separated by a second distance. The outer loops of the first and second planar coils respectively include an outer terminal away from the inner loop, wherein the outer terminals extend to form a pad. The pad of the first planar coil locates at a first position at peripheral of an imaginary geometric shape that encloses the two planar coils and the pad of the second planar coil locates at a second position apart from the first position at peripheral of the geometric shape. A planar transformer including the invented planar coil module is also disclosed.

主权项

1. A planar coil module, comprising a first planar coil, a second planar coil and a connection portion to connect the first and second planar coils in series;
wherein the first and second coils respectively include an outer loop and an inner loop, connected in series and separated by a first distance, with the inner loops of the first and second planar coils connected by the connection portion; wherein the first and second planar coils are provided in two neighboring planes and are separated by a second distance; wherein the outer loops of the first and second planar coils respectively include an outer terminal away from the inner loop, wherein the outer terminals extend to form a pad; and wherein the pad of the first planar coil locates at a first position at peripheral of an imaginary geometric shape that encloses the two planar coils and the pad of the second planar coil locates at a second position apart from the first position at peripheral of the geometric shape.