US Patent Application 18447538. FOREIGN OBJECT DETECTION IN A WIRELESS POWER TRANSFER SYSTEM simplified abstract
Contents
FOREIGN OBJECT DETECTION IN A WIRELESS POWER TRANSFER SYSTEM
Organization Name
Inventor(s)
Viswanathan Kanakasabai of Bangalore (IN)
Subbarao Tatikonda of Bangalore (IN)
Jayanti Ganesh of Bangalore (IN)
Joginder Yadav of Bangalore (IN)
Suma Memana Narayana Bhat of Bangalore (IN)
FOREIGN OBJECT DETECTION IN A WIRELESS POWER TRANSFER SYSTEM - A simplified explanation of the abstract
This abstract first appeared for US patent application 18447538 titled 'FOREIGN OBJECT DETECTION IN A WIRELESS POWER TRANSFER SYSTEM
Simplified Explanation
- The patent application is about systems, methods, and apparatuses for detecting foreign objects in a wireless power transfer system. - The detection is done using detection coils that measure and compare a differential current through a coil pair. - A foreign object can cause a change in impedance for one or more detection coils compared to others. - By detecting the differential current, the detection apparatus can determine if a foreign object is near one of the detection coils. - The patent application provides various options for designing, constructing, laying out, and operating detection coils to improve foreign object detection.
Original Abstract Submitted
This disclosure provides systems, methods and apparatuses for foreign object detection (FOD) in a wireless power transfer (WPT) system. Some implementations relate generally to the use of detection coils that are excited to measure and compare a differential current through a coil pair that includes at least two detection coils. A foreign object may cause a change in impedance for one or more detection coils compared to one or more other detection coils. By detecting the differential current of the coil pair, a detection apparatus may determine that a foreign object is in proximity to one of the detection coils of the coil pair. This disclosure provides several options for the design, construction, layout, and operations of detection coils to improve foreign object detection.
