Patent ID: 9035790
Filing Date: 2015-05-19
Classification: B60L,G01R,H02J,Y02T,Y04S

Abstract:
1. A transmit pad inspection device comprising: a magnetic coupling device including an inductive circuit that is configured to magnetically couple to a primary circuit of a charging device in a transmit pad as a secondary circuit through an alternating current (AC) magnetic field; a controllable load bank connected to said magnetic coupling device; the transmit pad inspection device configured to determine an input power applied to said primary circuit through communication with a device configured to measure said input power; the transmit pad inspection device configured to determine an output power delivered to a load in said controllable load bank, a magnetic field measurement device configured to measure at least a frequency of a magnetic field generated by said charging device, wherein the transmit pad inspection device is configured to vary said output power by changing a selected impedance of said controllable load bank, and to determine a correlation between said output power and a frequency of said AC magnetic field as measured by the magnetic field measurement device for each setting for the selected impedance for the controllable load bank.