H05B6/065

INDUCTION HEATING SYSTEM
20220330388 · 2022-10-13 ·

An induction system includes a single power inverter, a plurality of power branches coupled to the single power inverter in parallel, and a controller. Each of the plurality of power branches includes an induction coil, a capacitor coupled to the induction coil to form a resonant circuit, and a power switch coupled in series with the resonant circuit. The controller is configured to regulate an output power of the resonant circuit of each of the plurality of power branches by varying a switching frequency of the single power inverter to adjust the output power of the resonant circuit of all of the plurality of power branches and/or selectively transmitting a signal to the power switch of a respective power branch of the plurality of power branches to turn-on and turn-off the power switch of the respective power branch to individually adjust the output power of each of the plurality of power branches.

Connection interface for induction coil array

An induction cooking apparatus includes a plurality of induction coils arranged in at least one array. At least one beam structure is configured to support the at least one array of induction coils. At least one electrical circuit is in connection with the at least one beam structure and in communication with each of the plurality of induction coils forming the at least one array. At least one inverter assembly is configured to drive the induction coils. The electrical circuit and the inverter assembly form a connection interface including a plurality of mating connectors. The mating connectors of the connection interface electrically connect the array with the inverter assembly.

Induction heating and wireless power transmitting apparatus having improved circuit structure

An induction heating and wireless power transmitting apparatus includes a first group of working coils including a first working coil and a second working coil connected to each other in parallel, a first inverter that supplies resonant currents to at least one of the first working coil or the second working coil by performing a switching operation, a first semiconductor switch connected to the first working coil configured to turn on and turn off the first working coil, a second semiconductor switch connected to the second working coil and configured to turn on and turn off the second working coil, an auxiliary power supply configured to supply power to the first semiconductor switch and the second semiconductor switch, and a controller that controls the first inverter, the first semiconductor switch, and the second semiconductor switches.

Cooking Apparatus and control method thereof

Disclosed herein is a cooking apparatus and a control method thereof. The cooking apparatus includes first and second coils arranged in a first column, third and fourth coils arranged in a second column, a plurality of inverters configured to supply a drive current to the first, second third and fourth coils, a plurality of rectifiers configured to supply direct current (DC) power to the plurality of inverters, a plurality of switches configured to connect each of the plurality of rectifiers to any one of a first external power supply and a second external power supply, and a controller configured to control the plurality of switches wherein the first external power supply supplies power to at least one of the first, second, third, and fourth coils and the second external power supply supplies power to at least one of the first, second, third, and fourth coils.

System and method for cooking a food product

A system for cooking a food product may include a base, a hub, a plurality of cooking plates, a plurality of wipers, a spatula assembly, a backstop, an infrared (IR) sensor, and a proximity sensor. The hub may rotate relative to the base. The cooking plates are rotatable with the hub among a plurality of cooking stations. The wipers extend outward from a periphery of the hub. The backstop may be fixed relative to the base and may include one or more additional wipers contacting one or more of the cooking plates. The spatula assembly may cooperate with the backstop to pick up the food product from the one of the cooking stations. The IR sensor may measure a temperature of the food product on one of the cooking plates. The proximity sensor may detect a position of the food product on one of the cooking plates.

INDUCTION HEATING APPARATUS AND METHOD FOR CONTROLLING THE SAME
20220248506 · 2022-08-04 ·

The induction heating apparatus includes a current conversion circuit, a first working coil whose one end is connected to the current conversion circuit, a second working coil whose one end is connected to the current conversion circuit or the other end of the first working coil, a working coil base that accommodates the first working coil and the second working coil, a resonance capacitor that connects to the other end of the second working coil, a first relay that adjusts a connection between the other end of the first working coil and the resonance capacitor, a second relay that selectively connects one end of the second working coil to any one of the other end of the first working coil and the current conversion circuit, and a controller that controls the first relay's and the second relay's connections.

INDUCTION HEATING APPARATUS AND METHOD FOR CONTROLLING THE SAME
20220256657 · 2022-08-11 ·

An induction heating apparatus may determine a required power value of a heating zone, based on a power level set for the heating zone, detect a container by using an inner working coil and an outer working coil, determine a working coil to be driven, based on results of the detection of the container, determine a driving mode of the working coil to be driven, based on the required power value, and provide a control signal, based on the driving mode.

INDUCTION HEATING APPARATUS AND METHOD FOR CONTROLLING INDUCTION HEATING APPARATUS
20220256660 · 2022-08-11 ·

An induction heating apparatus may include a first working coil provided in a position corresponding to a first heating region, a second working coil provided in a position corresponding to a second heating region, an inverter circuit configured to supply current for driving at least one of the first working coil or the second working coil and comprising a plurality of switching elements, and a drive circuit configured to supply a switching signal to each of the switching elements. A controller configured to determine a driving mode of the working coil when a heating start command for at least one of the first working coil or the second working coil is input, and to supply a control signal for outputting of the switching signal to the drive circuit based on the determined driving mode.

INDUCTION HEATING APPARATUS AND METHOD FOR CONTROLLING INDUCTION HEATING APPARATUS
20220256658 · 2022-08-11 ·

An induction heating apparatus may include a first working coil provided in a position corresponding to a first heating region, a second working coil provided in a position corresponding to a second heating region, an inverter circuit configured to supply current for driving at least one of the first working coil or the second working coil, and a drive circuit configured to supply a switching signal to each of the switching elements. A controller may be configured to determine a driving mode of the working coil when a heating start command for at least one of the first working coil or the second working coil is input, and the controller may provide a control signal for outputting the switching signals based on the determined driving mode.

INDUCTION COOKING HOB INCLUDING THREE INDUCTION COILS

Systems and methods are provided for an induction cooking hob. The induction cooking hob includes at least three induction coils each comprising a first shape. The induction cooking hob includes a fourth induction coil arranged lateral to the three induction coils. The fourth induction coil includes a second shape. The induction cooking hob includes one or more generators. The induction cooking hob includes a control unit that is configured to control the one or more generators to supply power to the at least three induction coils and the fourth induction coil.