公开(公告)号：US11018529B2

公开(公告)日：2021-05-25

申请号：US16452281

申请日：2019-06-25

Applicant: Utah State University

Inventor： Anindya Chitta Bagchi ,  Tarak Saha ,  Abhilash Kamineni ,  Regan A. Zane

IPC: H02J50/12 ,  H02J7/02 ,  H02M3/335 ,  B60L53/60 ,  B63G8/00 ,  B60L53/12

Abstract: An apparatus for inductive power transfer (“IPT”) includes an active bridge section with input terminals that receive power from a constant current source, where the active bridge section operates at a fixed switching frequency, a primary resonant capacitor connected in series with an output terminal of the active bridge section, and a primary IPT coil connected in series with the primary resonant capacitor, where power is transferred wirelessly between the primary IPT coil and a secondary IPT coil, and the secondary IPT coil is connected in series with a secondary resonant capacitor, which is connected in series with an output rectifier section that receives power from the secondary IPT coil and comprising output terminals for connection to a load. The apparatus includes a controller that regulates output voltage to the load, where the controller regulates output voltage to the load by controlling switching of the active bridge section.

公开(公告)号：US10938313B2

公开(公告)日：2021-03-02

申请号：US16417221

申请日：2019-05-20

Applicant: Utah State University

Inventor： Tarak Saha ,  Hongjie Wang ,  Anindya Chitta Bagchi ,  Regan A. Zane

IPC: H02M3/335 ,  G05F1/10 ,  H02M1/00

Abstract: An apparatus includes an active bridge section with input terminals that receive power from a constant current source where the active bridge section operates at a fixed switching frequency. The apparatus includes a resonant section with a resonant inductor, a transformer and a resonant capacitor. The inductor is connected in series with a primary winding and the capacitor is connected in parallel with a secondary winding of the transformer. The resonant section is connected to an output of the active bridge section. The apparatus includes an output rectifier section that receives power from the resonant section and includes output terminals for connection to a load, and includes a controller that regulates output voltage to the load where the controller regulates output voltage to the load by controlling switching of the active bridge section. The fixed switching frequency of the active bridge section matches a resonant frequency of the resonant section.

公开(公告)号：US20200373847A1

公开(公告)日：2020-11-26

申请号：US16417221

申请日：2019-05-20

Applicant: Utah State University

Inventor： Tarak Saha ,  Hongjie Wang ,  Anindya Chitta Bagchi ,  Regan A. Zane

IPC: H02M3/335 ,  G05F1/10

Abstract: An apparatus includes an active bridge section with input terminals that receive power from a constant current source where the active bridge section operates at a fixed switching frequency. The apparatus includes a resonant section with a resonant inductor, a transformer and a resonant capacitor. The inductor is connected in series with a primary winding and the capacitor is connected in parallel with a secondary winding of the transformer. The resonant section is connected to an output of the active bridge section. The apparatus includes an output rectifier section that receives power from the resonant section and includes output terminals for connection to a load, and includes a controller that regulates output voltage to the load where the controller regulates output voltage to the load by controlling switching of the active bridge section. The fixed switching frequency of the active bridge section matches a resonant frequency of the resonant section.