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US 12,603,526 B1Granted
Hybrid wireless power device and method
AssigneeKitchenery Inc.
InventorsAkshay Bhuva, Antonio Agustin Mendez Delgado
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Abstract
A hybrid wireless power device comprises a single coil operated at two or more resonance frequencies. For example, a control circuit controls the voltage applied across a power transmission coil of a hub, and a frequency control circuit comprises a switch, such as a solid state relay, for switching between a first capacitance and a second capacitance for shifting the resonance frequency from a first resonant frequency to a second resonant frequency.
Claims34
A hybrid power transmitter and appliance system comprises:
- an appliance having no chemical battery or external power and being powered solely by inductive power transmission with a power receiving coil of the appliance, and the appliance having a wireless communications interface;
- and
- a hybrid hub circuit of the hybrid power transmitter, wherein the hybrid hub circuit is configured for inductively powering devices including the appliance, the hybrid hub circuit comprising:
- a communications circuit comprising a separate communications antenna for communicating between the hybrid hub circuit and the appliance, wherein the communications circuit establishes a handshake mode with the wireless communications interface of the appliance and receives control information from the appliance including an appliance type;
- a display, wherein the display is configured based on the control information received from the appliance;
- a single power transmission coil configured for operating at at least one resonance frequency, the at least one resonance frequency selected to inductively heat pans wirelessly charge batteries, and operatively powering the appliance by determining power requirements from the control information received from the appliance and inductively transferring power from the single power transmission coil to the power receiving coil of the appliance at the at least one resonance frequency in accordance with the power requirements determined from the control information received from the appliance, wherein no other power transmission coil than the single power transmission coil is used to inductively heat pans, wirelessly charge batteries or operatively power the appliance, and the single power transmission coil inductively transfers power from the hybrid power transmitter to the appliance using the single power transmission coil at a power level selected by the hybrid hub circuit after the appliance is identified in the handshake mode;
- and
- a controller, wherein the controller controls the power transferred from the single power transmission coil to the appliance based on the control information received from the appliance via the separate communications antenna of the communications circuit.
5 more elements
Dependencies are inferred from the claim text.