What electronic technologies are applied in electronic cigarettes?

Electronic cigarettes are products based on electronic technology that use electronic devices to heat and atomize liquid tobacco products or nicotine solutions, allowing users to inhale the vapor. The following are some commonly used electronic technologies in electronic cigarettes:

1. Battery technology: Electronic cigarettes require batteries as a source of energy, typically using rechargeable lithium batteries or non-rechargeable alkaline batteries.

2. Heating technology: Electronic cigarettes typically use heating elements such as heating coils or ceramic plates to heat the liquid in the cartridge.

3. Sensor technology: Sensors in electronic cigarettes are used to detect the strength and duration of user inhalation to control the heating element's operating state.

4. Control chip technology: The control chip in electronic cigarettes is used to manage battery power, heating element temperature and power, to ensure the stability and safety of the electronic cigarette.

5. Wireless communication technology: Some high-end electronic cigarettes may include wireless communication technology, such as Bluetooth and Wi-Fi, which can be connected to smartphones and other devices to provide more features and data exchange.

The basic structure of an electronic cigarette mainly includes a lithium battery, charging circuit and interface, cartridge (containing e-liquid), heating resistance wire, central controller (MCU), and air flow sensor. Electronic cigarettes use heating resistance wire and e-liquid to simulate the same taste as real cigarettes. Generally, the resistance value of the mouthpiece resistance wire is around 0.4Ω to 3.8Ω. The traditional method is to directly heat the cartridge resistance wire with the battery, or use a switching tube in series between the battery and the cartridge resistance wire to adjust the output power. However, this method's maximum output power is limited by the battery voltage, and the unstable battery voltage causes the output power to be unstable, affecting the smoking taste. Therefore, an increasing number of electronic cigarettes have a boost circuit to obtain higher and more stable output voltage, improving the smoking experience.