公开(公告)号：US20220068556A1

公开(公告)日：2022-03-03

申请号：US17002283

申请日：2020-08-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yi YAN ,  Kengo AOYA ,  Tomoko NOGUCHI ,  Tatsuhiro SHIMIZU

IPC: H01F27/32 ,  H01F41/14 ,  H01F27/29 ,  H01F1/04

Abstract: In examples, a transformer device comprises a first magnetic member; a second magnetic member; and a substrate layer between the first and second magnetic members. The substrate layer comprises a transformer coil. The transformer device includes a third magnetic member inside the substrate layer. The transformer coil encircles the third magnetic member. The third magnetic member physically separates from the first and second magnetic members.