-
公开(公告)号：US12199450B2
公开(公告)日：2025-01-14
申请号：US18058688
申请日：2022-11-23
Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
Inventor： Yong Ju Park , Yong Seok Lim , Yong Seong Kim , Hae Yong Jung , Hye Jung Kim
Abstract: A system for foreign object detection (FOD) in wireless power transfer is proposed. The system may include a balanced coil which is disposed between a transmitter coil and a receiver coil and which includes a Maxwell bridge circuit. The system may also include a temperature sensor configured to measure a temperature of the transmitter coil. The system may further include a processor configured to determine whether an FO is present between the transmitter coil and the receiver coil on the basis of voltage values detected at both ends of the bridge circuit. The FOD system can recognize the FO by finding a maximum resonant frequency at which a metal reacts using resonant frequency sweeping in a bridge circuit.
-
公开(公告)号：US20230387725A1
公开(公告)日：2023-11-30
申请号：US18058688
申请日：2022-11-23
Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
Inventor： Yong Ju Park , Yong Seok Lim , Yong Seong Kim , Hae Yong Jung , Hye Jung Kim
Abstract: A system for foreign object detection (FOD) in wireless power transfer is proposed. The system may include a balanced coil which is disposed between a transmitter coil and a receiver coil and which includes a Maxwell bridge circuit. The system may also include a temperature sensor configured to measure a temperature of the transmitter coil. The system may further include a processor configured to determine whether an FO is present between the transmitter coil and the receiver coil on the basis of voltage values detected at both ends of the bridge circuit. The FOD system can recognize the FO by finding a maximum resonant frequency at which a metal reacts using resonant frequency sweeping in a bridge circuit.
-
Search Results
2
records
(took 0.017 seconds)
