Testing system for use in testing of wireless power transfer, and an associated testing device and method

Abstract

A testing system ( 90 ) for use in testing of wireless power transfer is disclosed. The testing system has at least one wireless power receiver circuit ( 34 ) for receiving inductive power from an external wireless power transmitter ( 20 ). The testing system is arranged to detect received inductive power at least two operating frequencies relating two both a wireless power standard and a wireless communication standard. Measurements data originating from inductive power received adopting the wireless communication standard is forwarded to a processing means ( 42 ) which based on reference data is arranged to detect whether a communication receiver circuit ( 15 ) and arranged to communicate according to the wireless communication standard adopting the second frequency range, when arranged in operative proximity to the external wireless power transmitter device ( 20 ), would be negatively affected by the inductive power transmitted from the external wireless power transmitter device ( 20 ).

What is claimed is: 
     
         1 .- 13 . (canceled) 
     
     
         14 . A testing device for use in testing of wireless power transfer from an external wireless power transmitter device, operating in accordance with a wireless power standard, for potential negative impact on wireless communication equipment operating in accordance with a wireless communication standard, the wireless power standard adopting a first frequency range for wireless power transfer and the wireless communication standard adopting a second frequency range for wireless communication, the second frequency range being different than the first frequency range, the testing device comprising:
 a first wireless power receiver circuit arranged to receive inductive power from the external wireless power transmitter device; wherein the testing device further comprises a circuit selected from the group consisting of:
 a tuning circuit for tuning the operating frequency range of the first wireless power receiver circuit to enable detection of wireless power transmitted from the external wireless power transmitter device in the first wireless power receiver circuit according to both the wireless power standard adopting the first operating frequency range and the wireless communication standard adopting the second operating frequency range, or 
 a second wireless power receiver circuit arranged to receive inductive power in the second operating frequency range according to the wireless communication standard, wherein the first wireless power receiver circuit is arranged to receive inductive power in the first operating frequency range according to the wireless power standard, and wherein the second operating frequency range is different from the first operating range; and 
 
 an interface operatively coupled either to the first wireless power receiver circuit when the selected circuit is said tuning circuit or to the first and second wireless power receiver circuits when the selected circuit is said second wireless power receiver circuit, the interface being arranged to provide measurement data associated with the second frequency range to a host device, the measurement data enabling the host device to determine whether a communication receiver circuit provided in an external device and arranged to communicate according to the wireless communication standard adopting the second frequency range, when arranged in operative proximity to the external wireless power transmitter device, would be negatively affected by the inductive power transmitted from the external wireless power transmitter device, based on a comparison between the measurement data associated with the second frequency range and reference data. 
 
     
     
         15 . The testing device according to claim  1 , wherein the measurement data is associated with an induced voltage received in the respective wireless power receiver circuit. 
     
     
         16 . The testing device as according to claim  1 , wherein the first wireless power receiver circuit comprises a coil. 
     
     
         17 . The testing device according to claim  1 , the selected circuit being said second wireless power receiver circuit, wherein the second wireless power receiver circuit comprises an antenna. 
     
     
         18 . The testing device according to claim  1 , the selected circuit being said tuning circuit, wherein the tuning circuit comprises:
 a first passive network for tuning of an operation resonance frequency for wireless power transfer; and   a second passive network for tuning of a detection resonance frequency for communication signals.   
     
     
         19 . The testing device according to claim  1 , wherein the testing device comprises a housing in which the at least first wireless receiver circuit is provided, the housing having a lower housing part with a bottom side adapted for placement on a surface of the external wireless power transmitter device having a wireless power transmitter coil, and an upper housing part.