公开(公告)号：US20230361562A1

公开(公告)日：2023-11-09

申请号：US18309176

申请日：2023-04-28

Applicant: Medtronic, Inc.

Inventor： Andrew T. Fried ,  Charles M. Nowell, JR. ,  Brett A. Otteson ,  Venkat R. Gaddam ,  Robert J. Monson

IPC: H02J3/00 ,  H02J50/10 ,  H02J50/20 ,  G01R22/06 ,  A61M5/142

CPC classification number: H02J3/00125 ,  H02J50/10 ,  H02J50/20 ,  G01R22/068 ,  A61M5/14276

Abstract: A wireless power transfer system and devices that are configured to perform techniques to detect a single fault in primary processing circuitry by using second, independent processing circuitry. The techniques may include calculating and verifying an integrated output power dose. Verifying the integrated output power dose may include, for example, secondary processing circuitry calculating the integral of power delivered over a predetermined time duration and compares the calculated integral to an expected integral dose curve stored at a memory location accessible by the secondary processing circuitry. The detection techniques may also include determining a maximum output power profile. The secondary processing circuitry may receive a commanded output power target from the primary processing circuitry and compare the commanded output power to the maximum allowed output power vs. time.