公开(公告)号：US12239502B2

公开(公告)日：2025-03-04

申请号：US18304009

申请日：2023-04-20

Applicant: Colgate-Palmolive Company

Inventor： Xiaonan Zhang ,  Yongxing Wu

IPC: A61C17/34 ,  A61C17/22 ,  H03K17/98

Abstract: In one embodiment, a personal care appliance includes an electric motor having a drive shaft. In response to a voltage signal, the drive shaft is oscillated in an oscillatory motion having an oscillation amplitude. A control circuit includes, in operable cooperation, a user interface, a processor, a pulse width modulation signal generator, and a power source. The control circuit supplies the voltage signal to the electric motor, the voltage signal having a frequency and a duty cycle. The control circuit varies the frequency and the duty cycle of the voltage signal in response to an oscillation adjustment input received from the user interface so that the oscillation amplitude of the drive shaft is varied along a substantially linear rate of change profile relative to the frequency.

公开(公告)号：US20230255737A1

公开(公告)日：2023-08-17

申请号：US18304009

申请日：2023-04-20

Applicant: Colgate-Palmolive Company

Inventor： Xiaonan ZHANG ,  Yongxing Wu

IPC: A61C17/34 ,  A61C17/22

CPC classification number: A61C17/34 ,  A61C17/221 ,  A61C17/225 ,  H03K17/98

Abstract: In one embodiment, a personal care appliance includes an electric motor having a drive shaft. In response to a voltage signal, the drive shaft is oscillated in an oscillatory motion having an oscillation amplitude. A control circuit includes, in operable cooperation, a user interface, a processor, a pulse width modulation signal generator, and a power source. The control circuit supplies the voltage signal to the electric motor, the voltage signal having a frequency and a duty cycle. The control circuit varies the frequency and the duty cycle of the voltage signal in response to an oscillation adjustment input received from the user interface so that the oscillation amplitude of the drive shaft is varied along a substantially linear rate of change profile relative to the frequency.

公开(公告)号：US11654008B2

公开(公告)日：2023-05-23

申请号：US17079713

申请日：2020-10-26

Applicant: Colgate-Palmolive Company

Inventor： Xiaonan Zhang ,  Yongxing Wu

IPC: A61C17/34 ,  A61C17/22 ,  H03K17/98

CPC classification number: A61C17/34 ,  A61C17/221 ,  A61C17/225 ,  H03K17/98

Abstract: In one embodiment, a personal care appliance includes an electric motor having a drive shaft. In response to a voltage signal, the drive shaft is oscillated in an oscillatory motion having an oscillation amplitude. A control circuit includes, in operable cooperation, a user interface, a processor, a pulse width modulation signal generator, and a power source. The control circuit supplies the voltage signal to the electric motor, the voltage signal having a frequency and a duty cycle. The control circuit varies the frequency and the duty cycle of the voltage signal in response to an oscillation adjustment input received from the user interface so that the oscillation amplitude of the drive shaft is varied along a substantially linear rate of change profile relative to the frequency.