公开(公告)号：US20240156157A1

公开(公告)日：2024-05-16

申请号：US17776855

申请日：2022-01-27

Applicant: KT&G CORPORATION

Inventor： Wonkyeong LEE ,  Jae Sung CHOI ,  Heon Jun JEONG

IPC: A24F40/05 ,  A24F40/10 ,  A24F40/42 ,  A24F40/51 ,  A24F40/53 ,  B05B17/06 ,  B06B1/02

CPC classification number: A24F40/05 ,  A24F40/10 ,  A24F40/42 ,  A24F40/51 ,  A24F40/53 ,  B05B17/06 ,  B06B1/0215 ,  B06B2201/77

Abstract: According to an embodiment, an aerosol generating device includes a reservoir storing an aerosol generating material, a vibrator generating ultrasonic vibration to atomize the aerosol generating material into an aerosol, a drive circuit applying an alternating current (AC) voltage to the vibrator, a feedback circuit outputting a voltage proportional to a current supplied to the drive circuit, and a processor controlling a pulse width modulation (PWM) signal applied to the drive circuit, such that a value corresponding to the voltage is in a preset range defined by a first upper limit and a first lower limit.