Patent ID: 8907631

Claim:
A system to recharge a battery, the battery including at least two terminals, the system comprising: charging circuitry to (i) generate a battery charge signal using a first charge signal and a second charge signal and (ii) apply the battery charge signal to the battery to charge the battery, the charging circuitry including: a first charge circuit to generate the first charge signal, the first charge circuit including: a first current-voltage source to generate a first signal, and a first inductor-capacitor circuit, associated with and coupled to the first current-voltage source, to generate a first DC current-voltage signal using the first signal; a second charge circuit, spaced apart from the first charge circuit, to generate the second charge signal, the second charge circuit including: a second current-voltage source to generate a second signal, and a second inductor-capacitor circuit, associated with and coupled to the second current-voltage source, to generate a second DC current-voltage signal using the second signal; a first temperature sensor, in thermal communication with the first charge circuit, adapted to generate first temperature data which is representative of an operating temperature of the first charge circuit; control circuitry, electrically coupled to the first and/or second charge circuits, configured to: determine whether the first temperature data is out-of-specification, and generate one or more control signals, in response to the first temperature data being out-of-specification, using (i) the first temperature data and (ii) data which is representative of an operating efficiency of the first current-voltage source and/or the second current-voltage source, to adjust the first and/or second charge signal; and a housing, wherein the battery, the charging circuitry and the first temperature are disposed in the housing.