A heater arrangement for an aerosol provision device comprises a susceptor arranged to heat aerosol generating material, wherein the susceptor is heatable by penetration with a varying magnetic field, a first wire connected to the susceptor at a first position, a second wire connected to the susceptor at a second position, wherein the second position is spaced apart from the first position, and electronic circuitry configured to determine a temperature of the susceptor at the first position based on a potential difference measured between the first wire and the second wire.

An induction heating cooktop according to an embodiment of the present disclosure may include a top plate on which a cooking vessel is placed; a working coil configured to generate a magnetic field passing through the cooking vessel; an inverter configured to supply current to the working coil; a sensor configured to detect the temperature of the top plate; and a controller configured to identify a material of the cooking vessel using at least one of a change in a load impedance and a change in temperature, and determine whether the cooking vessel is in a preheated state based on at least one reference value that compares the change in the load impedance and the change in temperature, which are set differently for each material of the cooking vessel.

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.

An electric range is provided that may include a dedicated coil temperature sensor configured to measure a temperature of a working coil so as to monitor the temperature of the working coil in real time and actively respond to a working coil load condition, thereby remarkably increasing an operation time of the electric range.

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.