Patent ID: 11894700
Assignee: AIRA, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A non-transitory processor-readable storage medium having instructions stored thereon which, when executed by at least one processor of a charging circuit, cause the charging circuit to:
transmit a first pulse through a first power transmitting coil that is coupled to a first capacitor at a first node in a first charging circuit;
determine a first peak voltage, wherein the first peak voltage occurs at the first node in response to the first pulse and is indicative of a coupling coefficient between the first power transmitting coil and a receiving coil in a chargeable device;
transmit the first pulse through a second power transmitting coil that is coupled to a second capacitor at a second node in a second charging circuit;
determine a second peak voltage, wherein the second peak voltage occurs at the second node in response to the first pulse and is indicative of a coupling coefficient between the second power transmitting coil and the receiving coil in the chargeable device;
determine that amplitude of the first peak voltage is lower than amplitude of the second peak voltage; and
provide a first charging current to the first charging circuit.