An aerosol provision device includes: a power source and control circuitry. The control circuitry is configured to cause the power source to supply electrical current in accordance with a set duty cycle to an aerosol generator so as to maintain a substantially constant average power, wherein the duty cycle is set dependent on the temperature of the aerosol generator; and wherein the control circuitry is configured to determine a voltage supplied by the power source.

An inhalation device with which it is possible to improve usability and promote users' satisfaction and safety with the inhalation device includes a device body housing to and from which a panel can be attached and detached, and includes a heating unit which heats an inhalation component source for generating an inhalation component; a power supply unit which feeds electric power to the heating unit; a sensor unit which detects attachment of the panel to the housing and which measures data associated with the panel; a storage unit which stores a plurality of operational profiles; and a control unit which identifies an operational profile associated with the data measured by the sensor unit and causes said inhalation device to operate according to the operational profile.

An inhalation device with which it is possible to improve usability and promote users' satisfaction and safety with the inhalation device includes a device body housing to and from which a panel can be attached and detached, and includes a heating unit which heats an inhalation component source for generating an inhalation component; a power supply unit which feeds electric power to the heating unit; a sensor unit which detects attachment of the panel to the housing and which measures data associated with the panel; a storage unit which stores a plurality of operational profiles; and a control unit which identifies an operational profile associated with the data measured by the sensor unit and causes said inhalation device to operate according to the operational profile.

The invention relates to a replaceable flavor cartridge for an aerosol-generating device. The cartridge comprises a housing and a flavor substrate. The flavor substrate is arranged within the housing. The housing comprises a proximal aperture in a proximal end face of the housing. The housing comprises a distal aperture in a distal end face of the housing. The flavor substrate comprises a substrate aperture. The proximal aperture, the distal aperture and the substrate aperture are aligned with each other to form a cartridge airflow channel through the cartridge. The invention further relates to an aerosol-generating device.

The invention relates to a replaceable flavor cartridge for an aerosol-generating device. The cartridge comprises a housing and a flavor substrate. The flavor substrate is arranged within the housing. The housing comprises a proximal aperture in a proximal end face of the housing. The housing comprises a distal aperture in a distal end face of the housing. The flavor substrate comprises a substrate aperture. The proximal aperture, the distal aperture and the substrate aperture are aligned with each other to form a cartridge airflow channel through the cartridge. The invention further relates to an aerosol-generating device.

A composite-type temperature raising and control integrated heating element and a temperature control method are provided. The heating element includes a heating body, which is integrated by welding two different conductive materials at a welding point. The heating element is not provided with a temperature measuring element other than the heating body. The heating body of the temperature raising and control integrated heating element is formed by welding two conductive materials. When a high voltage is applied, the two conductive materials serve as the heating body to generate heat. When the supply of the voltage is stopped, the two conductive materials serve as a thermocouple temperature measuring sensor to measure the temperature of the heating element. Compared to existing heating elements, the temperature measuring sensor is omitted, the fabrication process of the heating element is simplified, and the performance of the heating element is improved.

A composite-type temperature raising and control integrated heating element and a temperature control method are provided. The heating element includes a heating body, which is integrated by welding two different conductive materials at a welding point. The heating element is not provided with a temperature measuring element other than the heating body. The heating body of the temperature raising and control integrated heating element is formed by welding two conductive materials. When a high voltage is applied, the two conductive materials serve as the heating body to generate heat. When the supply of the voltage is stopped, the two conductive materials serve as a thermocouple temperature measuring sensor to measure the temperature of the heating element. Compared to existing heating elements, the temperature measuring sensor is omitted, the fabrication process of the heating element is simplified, and the performance of the heating element is improved.

An induction heating assembly for a vapour generating device includes an induction coil, radially inward of which a heating compartment is defined for receiving, in use, a body including a vaporisable substance and an induction heatable susceptor; and a temperature sensor located against a side of the heating compartment on the central longitudinal axis of the induction coil at an end of the heating compartment, wherein the induction coil is arranged to heat, in use, the susceptor, and the temperature sensor is arrange to monitor, in use, a temperature related to heat generated from the susceptor. There is also provided an induction heatable cartridge for use with the induction heating assembly. The cartridge includes a solid vaporisable substance; and an induction heatable susceptor held by the vaporisable substance, the susceptor being planar and having an outwardly facing edge and an inwardly facing edge.

An induction heating assembly for a vapour generating device includes an induction coil, radially inward of which a heating compartment is defined for receiving, in use, a body including a vaporisable substance and an induction heatable susceptor; and a temperature sensor located against a side of the heating compartment on the central longitudinal axis of the induction coil at an end of the heating compartment, wherein the induction coil is arranged to heat, in use, the susceptor, and the temperature sensor is arrange to monitor, in use, a temperature related to heat generated from the susceptor. There is also provided an induction heatable cartridge for use with the induction heating assembly. The cartridge includes a solid vaporisable substance; and an induction heatable susceptor held by the vaporisable substance, the susceptor being planar and having an outwardly facing edge and an inwardly facing edge.

A control device of an aerosol generating device includes a main control unit, and is connectable to a battery and a heater coil. The main control unit is configured to carry out one or more execution loops, a first execution loop includes applying a first power output to the heater coil for a first number of steps, disabling the first power output and thereby switching off the heater coil in a second number of steps, measuring a first heater coil voltage of the heater coil in a third number of steps, pausing with the heater coil switched off for a fourth number of steps, and measuring a first off-load battery voltage of the battery in a fifth number of steps. The main control unit is further configured to calculate an updated power output based upon the first heater coil voltage and first off-load battery voltage.