Power transfer disabling switch in wireless power receiving device

• Main Authors: KANAKASBY, VADIM, GANESH JAY, TATIKONDA, SURESH
• Format: Patent
• Language: Chinese; English
• Published: 15.12.2023
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

This disclosure provides systems, methods, and devices for blocking power transfer in a secondary coil of a wireless power receiving device. Some implementations generally relate to the use of one or more switches. In some implementations, one or more switches may be coupled in series to one or both ends of the secondary coil. One or more switches may be controlled based on handshake communication between the wireless power receiving device and the compatible wireless power transmitting device. The one or more switches may be controlled using bias power from a wireless communication interface that is separate from power receiving circuitry that includes a secondary coil. The one or more switches may disable power transfer in the secondary coil to protect one or more components of the wireless power receiving device, or enable measurement of a coupling factor during a measurement period. 本公开提供用于阻止无线功率接收设备的次级线圈中的功率传输的系统、方法和设备。一些实现一般涉及一个或多个开关的使用。在一些实现中，一个或多个开关可以串联耦合到次级线圈的一端或两端。可基于无线功率接收设备和兼容的无线功率传输设备之间的握手通信来控制一个