# US 11,444,492 B2 · Wireless power transfer systems for kitchen appliances > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,444,492 B2 - Document ID: US11444492B2 - Status: Granted - Kind: B2 - Application number: 17/172,909 - Filed: 2021-02-10 - Published: 2022-08-11 - Granted: 2022-09-13 - Earliest claimed: 2021-02-10 - Assignees: NuCurrent, Inc. - Applicants: NuCurrent, Inc. - Inventors: Mark Melone; Alberto Peralta; Michael Katz - Web page: https://patentgrep.com/patent/US11444492B2 ## CPC - H02J 50/40: using two or more transmitting or receiving devices (H02J50/50 takes precedence) - H05B 6/062: {for cooking plates or the like} - A47J 27/004: {with integral electrical heating means (drinking cups with integral heating means A47J36/2466)} - A47J 47/01: with dispensing devices - H02J 50/20: using microwaves or radio frequency waves - H02J 50/402: {the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas} - H05B 6/1236: {adapted to induce current in a coil to supply power to a device and electrical heating devices powered in this way} - H02J 50/60: responsive to the presence of foreign objects, e.g. detection of living beings - H05B 2213/06: Cook-top or cookware capable of communicating with each other - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - A47J: KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES ## Abstract A kitchen appliance is disclosed includes a first electrical component, a second electrical component, and a wireless power receiver system. The wireless power receiver system includes a first receiver antenna configured to couple with a first transmission antenna and receive virtual AC power signals from the first transmission antenna. A second receiver antenna is configured to couple with a second transmission antenna and receive virtual DC power signals from the second transmitter antenna. A first receiver power conditioning system is configured to receive the virtual AC power signals, convert the virtual AC power signals to AC received power signals, and provide the AC received power signals to power the first electrical component. The second receiver power conditioning system configured to receive the virtual DC power signals, convert the virtual DC power signals to DC received power signals, and provide the DC received power signals to power the second electrical component. ## Claims ### Claim 1 A wireless power transfer system for providing wireless power to a kitchen appliance, the wireless power transfer system comprising: a wireless power transmission system, including: a first transmission antenna configured to couple with a first receiver antenna and transmit virtual AC power signals to the first receiver antenna, the first receiver antenna operatively associated with the kitchen appliance, a second transmission antenna configured to couple with a second receiver antenna and transmit virtual direct current (DC) power signals to the second receiver antenna, the second receiver antenna operatively associated with the kitchen appliance, at least one transmission controller that is configured to (i) provide a first driving signal for driving the first transmission antenna based on a first operating frequency and a virtual AC power frequency, and (ii) provide a second driving signal for the second transmission antenna based on a second operating frequency, a first transmission power conditioning system including at least one first transistor that is configured to receive the first driving signal, at a gate of the at least one first transistor, and to receive a first input power signal to generate the virtual AC power signals at the first operating frequency and having peak voltages rising and falling based on the virtual AC power frequency, and a second transmission power conditioning system including at least one second transistor that is configured to receive the second driving signal, at a gate of the at least one second transistor, and to receive a second input power signal to generate the virtual DC power signals at the second operating frequency; and a wireless power receiver system operatively associated with the kitchen appliance, the wireless power receiver system including: the first receiver antenna configured to couple with the first transmission antenna and receive the virtual AC power signals from the first transmission antenna, the first receiver antenna operating based on the first operating frequency, the second receiver antenna configured to couple with the second transmission antenna and receive the virtual DC power signals from the second transmitter antenna, the second receiver antenna operating based on the second operating frequency, and a first receiver power conditioning system configured to (i) receive the virtual AC power signals, (ii) convert the virtual AC power signals to alternating current (AC) received power signals, and (iii) provide the AC received power signals to a first load of the kitchen appliance, a second receiver power conditioning system configured to (i) receive the virtual DC power signals, (ii) convert the virtual DC power signals to DC received power signals, and (iii) provide the DC received power signals to a second load of the kitchen appliance. ### Claim 2 (depends on 1) The wireless power transfer system of claim 1, wherein the at least one transmission controller is a single controller configured to both (i) provide the first driving signal for driving the first transmitter antenna based on the first operating frequency and the virtual AC power frequency, (ii) provide the second driving signal for the second transmission antenna based on the second operating frequency. ### Claim 3 (depends on 1) The wireless power transfer system of claim 1, wherein the at least one transmission controller includes a first transmission controller and a second transmission controller, wherein the first transmission controller is configured to provide the first driving signal for driving the first transmitter antenna based on the first operating frequency and the virtual AC power frequency, and wherein the second transmission controller is configured to provide the second driving signal for the second transmission antenna based on the second operating frequency. ### Claim 4 (depends on 1) The wireless power transfer system of claim 1, wherein the at least one transmission controller is further configured to perform one or more of encoding data signals in the virtual DC power signals, decoding the data signals from the virtual DC power signals, receiving the data signals, or transmitting the data signals. ### Claim 5 (depends on 4) The wireless power transfer system of claim 4, wherein the second power conditioning system further includes a damping circuit that is configured to dampen the virtual DC power signals during transmission or receipt of the data signals, wherein the damping circuit includes at least a damping transistor that is configured to receive, from the at least one transmission controller, a damping signal for switching the damping transistor to control damping during transmission or receipt of the data signals. ### Claim 6 (depends on 1) The wireless power transfer system of claim 1, wherein the virtual AC power frequency is in a range of about 50 Hz to about 60 Hz. ### Claim 7 (depends on 1) The wireless power transfer system of claim 1, wherein the first operating frequency is in a range of about 20 kHz to about 150 kHz. ### Claim 8 (depends on 1) The wireless power transfer system of claim 1, wherein the second operating frequency is in a range of about 13.553 MHz to about 13.567 MHz. ### Claim 9 A wireless power transmission system for providing wireless power to a kitchen appliance, the wireless power transmission system comprising: a first transmission antenna configured to couple with a first receiver antenna and transmit virtual AC power signals to the first receiver antenna, the first receiver antenna operatively associated with the kitchen appliance, a second transmission antenna configured to couple with a second receiver antenna and transmit virtual direct current (DC) power signals to the second receiver antenna, the second receiver antenna operatively associated with the kitchen appliance; at least one transmission controller that is configured to (i) provide a first driving signal for driving the first transmission antenna based on a first operating frequency and a virtual AC power frequency, and (ii) provide a second driving signal for the second transmission antenna based on a second operating frequency; a first transmission power conditioning system including at least one first transistor that is configured to receive the first driving signal, at a gate of the at least one first transistor, and to receive a first input power signal to generate the virtual AC power signals at the first operating frequency and having peak voltages rising and falling based on the virtual AC power frequency; and a second transmission power conditioning system including at least one second transistor that is configured to receive the second driving signal, at a gate of the at least one second transistor, and to receive a second input power signal to generate the virtual DC power signals at the second operating frequency. ### Claim 10 (depends on 9) The wireless power transmission system of claim 9, wherein the wireless power transmission system is operatively associated with a host kitchen surface. ### Claim 11 (depends on 10) The wireless power transmission system of claim 10, wherein the wireless power transmission is one or more of housed by the host kitchen surface, integrated within the host kitchen surface, positioned below the host kitchen surface, partially housed by the host kitchen surface, or combinations thereof. ### Claim 12 (depends on 11) The wireless power transmission system of claim 11, wherein the host kitchen surface is one or more of a counter, a table, a kitchen island, a surface of an appliance, or combinations thereof. ### Claim 13 A kitchen appliance comprising: a first electrical component; a second electrical component; and a wireless power receiver system including a first receiver antenna configured to couple with a first transmission antenna and receive virtual AC power signals from the first transmission antenna, the first receiver antenna operating based on a first operating frequency for the virtual AC power signals, a second receiver antenna configured to couple with a second transmission antenna and receive virtual DC power signals from the second transmitter antenna, the second receiver antenna operating based on the second operating frequency, and a first receiver power conditioning system configured to (i) receive the virtual AC power signals, (ii) convert the virtual AC power signals to alternating current (AC) received power signals, and (iii) provide the AC received power signals to power the first electrical component, and a second receiver power conditioning system configured to (i) receive the virtual DC power signals, (ii) convert the virtual DC power signals to DC received power signals, and (iii) provide the DC received power signals to power the second electrical component. ### Claim 14 (depends on 13) The kitchen appliance of claim 13, wherein the second electrical component is a control device configured to control, at least, the first electrical component. ### Claim 15 (depends on 13) The kitchen appliance of claim 13, wherein the kitchen appliance is a rotation-based kitchen appliance, and the first electrical component is a rotating component. ### Claim 16 (depends on 15) The kitchen appliance of claim 15, wherein the rotation-based kitchen appliance is one of a blender, a mixer, a food processor, a bread maker, an ice cream maker, a slicer or components thereof. ### Claim 17 (depends on 13) The kitchen appliance of claim 13, wherein the kitchen appliance is a chamber-based kitchen appliance including a chamber, wherein the first electrical component is configured to alter a state of an object or matter within the chamber. ### Claim 18 (depends on 17) The kitchen appliance of claim 17, wherein the chamber-based kitchen appliance is one of an oven, a microwave oven, a toaster oven, a toaster, a bread maker, an ice machine, a refrigerator, a mini-fridge, a wine cooler, an active cooler, a dishwasher, a pressure cooker, a fryer, an air fryer, a deep fryer, or combinations thereof. ### Claim 19 (depends on 13) The kitchen appliance of claim 13, wherein the kitchen appliance is an induction-based appliance and the first electrical component is an induction heating component. ### Claim 20 (depends on 13) The kitchen appliance of claim 13, wherein the kitchen appliance is a dispensing-based kitchen appliance configured to dispense a solid or liquid matter.