INPUT POWER APPRAISAL BASED WIRELESS POWER SYSTEM

摘要

A wireless power system (WPS) has a wireless power transmitter (WPT) that appraises an input power available to a power inverter from one or more input power sources. The WPT comprises the power inverter that wirelessly transmits power to a wireless power receiver (WCR) of the WPS, and a power appraiser circuit (PAC). The PAC ascertains maximum input power available to the power inverter from the input power sources. The PAC includes a variable load connected to a path carrying the input power to the power inverter or one or more input pins that receive power ratings of the input power sources that indicate available maximum input power from the input power sources. The ascertaining of maximum input power available to the power inverter from the input power sources appraises the input power available to the power inverter. The WCR receives information representing maximum power deliverable by the WPT.

主权项

1. A wireless power system comprising:
a wireless power transmitter operatively connected to an input power source, said wireless power transmitter configured to deliver power from said input power source wirelessly to one or more wireless power receivers that are placed within its charging zone one or more said wireless power receivers configured to receive power wirelessly, said wireless power receivers configured to deliver said received power to their respective loadwherein said wireless power transmitter performs one or more of:
sensing the removal of one or more said wireless power receivers from its said charging zone and taking appropriate action in conjunction with said wireless power receivers that are still within its said charging zone to ensure that said transfer of power to said load of said wireless power receivers that are still within its said charging zone remains stable. sensing the insertion of one or more newly placed wireless power receivers into its said charging zone and taking appropriate action in conjunction with said wireless power receivers that are in its said charging zone to ensure that said transfer of power to said load of all said wireless power receivers that are within its said charging zone is stable.