Dual Mode Wireless Power Receiver

摘要

A dual mode wireless power receiver (DMWPR) selectively applying a received power to a load device and utilizing at least a part of the power to power-up, communicate, and charge a secondary wireless power receiver (SWPR) is provided. The DMWPR includes a first circuitry having an impedance network, a switch network, a filter capacitor, and one or more switches, and a second circuitry having a security engine, a control logic circuit, and a modulator/demodulator circuit. The first circuitry receives power in charging mode and transmits power in communication mode. The second circuitry configures the first circuitry to allow receipt and transmission of power, receives and interprets data from SWPR in the identified wireless power protocol, and based on the type of SWPR authenticates, decrypts, and encrypts data transfer between DMWPR and SWPR, and receives and executes on a request from SWPR to perform a function associated with transmitted power.

主权项

1. A dual mode wireless power receiver configured to selectively apply a received power to a load device and utilize at least a part of a stored power to power-up and communicate with a secondary wireless power receiver to cause an action or a transaction or charge a load device of said secondary wireless power receiver, said dual mode wireless power receiver comprising:
a first circuitry comprising:
one of a coil and capacitor electrodes;an impedance network;a switch network;a filter capacitor; andone or more switches; a second circuitry comprising:
a security engine configured to authenticate, decrypt, and encrypt a data transfer between said dual mode wireless power receiver and said secondary wireless power receiver;a control logic circuit; anda modulator/demodulator circuit; said first circuitry configured to receive said power from a wireless power transmitter; said first circuitry, based on an input from said control logic circuit, configured to change impedance of said impedance network and topology of said switch network to obtain a modified form of said received power, and apply said modified form of said received power to said load device; said first circuitry, based on an input from said control logic circuit, configured to change said topology of said switch network and said impedance of said impedance network to transmit at least part of said stored power to said secondary wireless power receiver to power-up said secondary wireless power receiver; said second circuitry configured to identify a type of said secondary wireless power receiver and identify a wireless power protocol of said secondary wireless power receiver; and said second circuitry, on power-up of said secondary wireless power receiver, configured to perform one of:
receiving and interpreting data from said secondary wireless power receiver in said identified wireless power protocol;providing authentication information to said secondary wireless power receiver to authenticate said dual mode wireless power receiver, receive and interpret said data from said secondary wireless power receiver, and respond with suitable encrypted data to said secondary wireless power receiver in said identified wireless power protocol;initiating exchange of said authentication information between said dual mode wireless power receiver and said secondary wireless power receiver, to authenticate said dual mode wireless power receiver and said secondary wireless power receiver, receive, decrypt, and interpret said data from said secondary wireless power receiver and respond with said encrypted data to said secondary wireless power receiver in said identified wireless power protocol; andreceiving and interpreting a request from said secondary wireless power receiver and performing a function associated with said transmitted power in conjunction with said first circuitry.