Disclosed are an ultrasonic atomization control system and an electronic cigarette. The system includes: a current feedback circuit and/or a voltage feedback circuit, a microcontroller unit, a push-pull circuit, and an oscillator driving circuit; wherein the push-pull circuit is coupled between the microcontroller unit and the oscillator driving circuit, the current feedback circuit and/or the voltage feedback circuit are/is coupled between the oscillator driving circuit and the microcontroller unit; and the oscillator driving circuit is configured to be connected with a load; wherein the microcontroller unit is configured to output a pulse width modulation signal with a predetermined frequency and voltage to the push-pull circuit, judge a current and/or a voltage fluctuation fed back by the current feedback circuit and/or the voltage feedback circuit are/is greater than a threshold, and stop operation of the load if the fluctuation is greater than the threshold.

A vaporizer device includes a resistive heating element; circuitry configured to control delivery of electrical power to the resistive heating element from a power source; and a controller configured to perform operations including: receiving inputs representative of a power delivery to the resistive heating element, a temperature of the resistive heating element, and/or a flow rate of air past the resistive heating element; predicting, using the received inputs, an amount of evaporation of the vaporizable material at the resistive heating element; and controlling the power delivery to the resistive heating element in response to the predicted amount of evaporation of the vaporizable material, the controlling including increasing or decreasing an instantaneous power delivery to the heating element such that a target aerosol yield is produced. Related devices, systems, methods, and articles are also described.

A vaporizer device includes a resistive heating element; circuitry configured to control delivery of electrical power to the resistive heating element from a power source; and a controller configured to perform operations including: receiving inputs representative of a power delivery to the resistive heating element, a temperature of the resistive heating element, and/or a flow rate of air past the resistive heating element; predicting, using the received inputs, an amount of evaporation of the vaporizable material at the resistive heating element; and controlling the power delivery to the resistive heating element in response to the predicted amount of evaporation of the vaporizable material, the controlling including increasing or decreasing an instantaneous power delivery to the heating element such that a target aerosol yield is produced. Related devices, systems, methods, and articles are also described.

An aerosol provision system for generating aerosol from an aerosol-generating material. The system comprises an article comprising the aerosol-generating material and an aerosol provision device configured to engage with the article and to enable generation of aerosol from the aerosol-generating material. The system further includes detection circuitry for detecting when the article is engaged and/or disengaged with the aerosol provision device, and control circuitry for controlling operation of the aerosol provision device. The control circuitry is configured to switch the aerosol provision device from a first operating mode to a second operating mode when the control circuitry determines the article has been engaged with and/or disengaged with the aerosol provision device a plurality of times. By requiring both that the user must engage and/or disengage the article and the device, and that the user must do so a plurality of times, further reduces the chances of the user inadvertently switching to the second operating mode. Also disclosed is an aerosol provision device and a method for switching from the first operating mode to the second operating mode.

A security tag can prohibit unauthorized usage of a device or product. The device may include an electronic nicotine delivery systems (“ENDS”) device, which may include aerosol delivery devices such as smoking articles that produce aerosol. The security tag can prevent usage until authorized. Attempts at usage without authorization can result in the device being unusable. The authorization may include identity confirmation or age verification.

A security tag can prohibit unauthorized usage of a device or product. The device may include an electronic nicotine delivery systems (“ENDS”) device, which may include aerosol delivery devices such as smoking articles that produce aerosol. The security tag can prevent usage until authorized. Attempts at usage without authorization can result in the device being unusable. The authorization may include identity confirmation or age verification.

An aerosol generation system for generation of an aerosol from an aerosol-forming precursor includes an electrically operated heating system to heat the precursor to generate the aerosol, a flow path for transmission of flow, including the aerosol, to a user, the heating system arranged in fluid communication with the flow path, and electrical circuitry. The electrical circuitry is configured to apply a predetermined amount of electrical energy to the heating system to stabilise a property of electrical energy through the heating system, and determine a property related to the flow of the flow path based on the stabilised property of the electrical energy through the heating system, wherein the property related to the flow is an amount of one or more components of the aerosol.

An aerosol generation system for generation of an aerosol from an aerosol-forming precursor includes an electrically operated heating system to heat the precursor to generate the aerosol, a flow path for transmission of flow, including the aerosol, to a user, the heating system arranged in fluid communication with the flow path, and electrical circuitry. The electrical circuitry is configured to apply a predetermined amount of electrical energy to the heating system to stabilise a property of electrical energy through the heating system, and determine a property related to the flow of the flow path based on the stabilised property of the electrical energy through the heating system, wherein the property related to the flow is an amount of one or more components of the aerosol.

An aerosol-generating device configured to receive an aerosol-generating article is provided, including: an elongate housing having a distal end and a proximal end; a light source; and a controller configured to control the light source, in which, in use, the proximal end of the housing points towards a consumer, in which the proximal end of the housing includes an illumination portion made from translucent material, in which the light source is optically coupled to the illumination portion, and in which the illumination portion is configured to surround the aerosol-generating device in use. An aerosol-generating system including the aerosol-generating device and an aerosol-generating article is also provided. A method of operating the aerosol-generating system is also provided.

A chip for a vaporizer includes: a package having a communication interface for determining whether a battery rod into which the vaporizer is inserted communicates with the vaporizer. When the battery rod communicates with the vaporizer, the vaporizer operates in a first mode. When the battery rod does not communicate with the vaporizer, the vaporizer operates in a second mode.