Aerosolerzeugungsvorrichtung und Steuerungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP4817446

Anmeldetag

8. Januar 2025

Veröffentlichung

17. Juli 2025

Rechtsraum

EP

IPC

A24F40/57

Abstract

This application provides an aerosol generating device and a control method therefor. The aerosol generating device includes: a power supply circuit; a direct current/alternating current (DC/AC) inverter, including a class-E power amplifier, the class-E power amplifier including a transistor switch and an LC load network consisting of a capacitor and an inductor; where the inductor is inductively coupled to a susceptor, to heat an aerosol-forming substrate to generate an aerosol; and a controller, configured to determine, during operation, an apparent ohmic resistance based on a DC supply voltage and a DC current output by the power supply circuit to the DC/AC inverter; the controller being further configured to monitor a change in the apparent ohmic resistance, and when the apparent ohmic resistance changes, adjust a frequency and a duty cycle of a switch signal supplied to the transistor switch. According to the foregoing aerosol generating device and the control method therefor, a change in an apparent ohmic resistance is monitored, and when the apparent ohmic resistance changes, a frequency and a duty cycle of a switch signal supplied to the transistor switch are adjusted, so that the class-E power amplifier always operates in an optimal state.

Anmelder

Firma

Shenzhen First Union Technology Co., Ltd.

Land

🇨🇳 China

Fachgebiete