18756178. FRIENDLY METAL LOSS ESTIMATION simplified abstract (Apple Inc.)
Contents
FRIENDLY METAL LOSS ESTIMATION
Organization Name
Inventor(s)
Shubha Ramakrishnan of San Jose CA (US)
Adam L. Schwartz of Redwood City CA (US)
FRIENDLY METAL LOSS ESTIMATION - A simplified explanation of the abstract
This abstract first appeared for US patent application 18756178 titled 'FRIENDLY METAL LOSS ESTIMATION
Simplified Explanation: The patent application describes a wireless power transfer device that can detect foreign objects during power transfer.
- The device includes a coil for wireless power transfer, a power converter, and controller circuitry for monitoring and controlling the power transfer.
- Foreign object detection is based on power accounting, estimating friendly metal losses from the counterpart device.
- The device can receive modeling parameters from the counterpart device to improve foreign object detection accuracy.
Key Features and Innovation:
- Wireless power transfer device with foreign object detection capability.
- Power converter controlled based on foreign object detection.
- Improved accuracy in detecting foreign objects using modeling parameters from the counterpart device.
Potential Applications:
- Consumer electronics charging.
- Industrial automation.
- Electric vehicle charging.
Problems Solved:
- Prevents damage to the device or foreign objects during wireless power transfer.
- Ensures efficient and safe power transfer.
Benefits:
- Enhanced safety during wireless power transfer.
- Improved efficiency in power transfer.
- Prevents damage to devices and foreign objects.
Commercial Applications: Wireless Power Transfer Device with Foreign Object Detection: Market Implications and Commercial Uses
Prior Art: Prior art related to wireless power transfer devices with foreign object detection capabilities can be found in research papers and patents in the field of wireless power transfer technology.
Frequently Updated Research: Research on improving foreign object detection algorithms in wireless power transfer devices is ongoing, with new developments and advancements regularly published in academic journals and conferences.
Questions about Wireless Power Transfer Devices with Foreign Object Detection: 1. How does the device estimate friendly metal losses during power transfer? 2. What are the potential risks associated with foreign objects during wireless power transfer?
Original Abstract Submitted
A wireless power transfer device can include a coil that couples to a corresponding coil of a counterpart device to facilitate wireless power transfer, a power converter coupled to the coil, and controller and communication circuitry that monitors one or more observable parameters associated with the wireless power transfer to detect a presence of a foreign object that is not the counterpart device and control the power converter responsive to detection of a foreign object. The controller and communication circuitry can perform foreign object detection based on power accounting that includes estimating friendly metal losses associated with the counterpart device. The controller and communication circuitry can receive from the counterpart device friendly metal loss modeling parameters associated with the counterpart device, the modeling parameters including one or more coefficients relating to a wireless power transfer current and one or more coefficients relating to a wireless power transfer voltage.
