An induction heating assembly for a vapour generating device is provided, the induction heating assembly including: an outer wall; an induction heating coil arranged inward of the outer wall and extending along the outer wall; a heating compartment defined inward of the outer wall and having a base portion at a first end of the induction coil and having an opening opposite of the base portion and arranged to receive, in use, via the opening, an elongated member to be heated by induction heating; and at least one movable member arranged such as to move in the longitudinal direction of the induction heating coil when a current is flowing through the induction heating coil.

A heating device includes a first capacitor, a first switch, a second switch, a second capacitor, a third capacitor, a coil and a controller. The first and second switch are coupled in series at a first node, and are coupled with the first capacitor in parallel. The second capacitor is coupled to the first switch. The third capacitor is coupled to the second switch, and is coupled to the second capacitor at a second node. The coil is coupled between the first and the second node. The controller outputs a first and a second control signal to the first switch and the second switch, respectively. After the heating device received a voltage and a starting command, the controller outputs the first and the second control signal to turn on or off the first and the second switch respectively. The duty cycle of the first signal is lower than 50%.

A heating device includes a first capacitor, a first switch, a second switch, a second capacitor, a third capacitor, a coil and a controller. The first and second switch are coupled in series at a first node, and are coupled with the first capacitor in parallel. The second capacitor is coupled to the first switch. The third capacitor is coupled to the second switch, and is coupled to the second capacitor at a second node. The coil is coupled between the first and the second node. The controller outputs a first and a second control signal to the first switch and the second switch, respectively. After the heating device received a voltage and a starting command, the controller outputs the first and the second control signal to turn on or off the first and the second switch respectively. The duty cycle of the first signal is lower than 50%.

A heating device includes a first capacitor, a first switch, a second switch, a second capacitor, a third capacitor, a coil and a controller. The first and second switch are coupled in series at a first node, and are coupled with the first capacitor in parallel. The second capacitor is coupled to the first switch. The third capacitor is coupled to the second switch, and is coupled to the second capacitor at a second node. The coil is coupled between the first and the second node. The controller outputs a first and a second control signal to the first switch and the second switch, respectively. After the heating device received a voltage and a starting command, the controller outputs the first and the second control signal to turn on or off the first and the second switch respectively. The duty cycle of the first signal is lower than 50%.

An inductive heating device (1) comprises: a device housing (10), a DC power source (11), a power supply electronics (13) comprising a DC/AC inverter (132) including a Class-E power amplifier with a transistor switch (1320), a transistor switch driver circuit (1322), and an LC load network (1323) configured to operate at low ohmic load (1324), the LC load network (1323) comprising a shunt capacitor (C1) and a series connection of a capacitor (C2) and an inductor (L2), and a cavity (14) arranged in the device housing (10), the cavity (14) having an internal surface shaped to accommodate at least a portion of the aerosol-forming substrate (20), wherein the cavity (14) is arranged such that the inductor (L2) is inductively coupled to the susceptor (21) of the aerosol-forming substrate (20) during operation.

An induction cooking apparatus comprises 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 comprising a plurality of mating connectors. The mating connectors of the connection interface electrically connect the array with the inverter assembly.

An induction cooking apparatus comprises a plurality of induction coils arranged in an array. The induction coils comprise conductive windings and at least one foil. The at least one foil comprises magnetically permeable material extending beneath the plurality of induction coils.

A method of operating an induction cooktop appliance includes supplying a power signal to an induction heating element of the induction cooktop appliance in response to a request received via a user input of the cooktop appliance. The method also includes detecting a current of the power signal supplied to the induction heating element and detecting a phase angle of the power signal supplied to the induction heating element. The method may further include determining a maximum current based on the detected phase angle, comparing the detected current to the determined maximum current, and modifying an operating parameter of the induction cooktop appliance when the detected current is greater than the determined maximum current.

An induction heating device includes a working coil, an inverter, an inverter driving unit configured to apply a switching signal to the inverter to enable the inverter to perform a switching operation, a control unit configured to generate and apply a control signal to the inverter driving unit to cause the inverter driving unit to generate the switching signal based on the control signal, and a determination unit configured to determine a type of an object disposed on the induction heating device based on (i) a first resonant current value measured from the working coil in response to operation of the inverter by the switching signal having a first operation frequency and (ii) a second resonant current value measured from the working coil in response to operation of the inverter by the switching signal having a second operation frequency.

The present disclosure relates to a water-purifying device and a method for controlling the water-purifying device. In order to maintain a hot-water discharge temperature of water in the hot-water storage tank upon a hot-water discharge request from a user, an upper-limit temperature and lower-limit temperature corresponding to the hot-water discharge temperature are determined. Thus, the water-purifying device according to the present disclosure may drive a heating module thereof based on the upper-limit temperature and lower-limit temperature.