公开(公告)号：US10084401B2

公开(公告)日：2018-09-25

申请号：US15123707

申请日：2015-01-28

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Robert Godlieb ,  Jan Geert Hagting ,  Jeroen Christian Nijdam ,  Jasper Zuidervaart

IPC: H02P7/29 ,  B26B19/38

CPC classification number: H02P7/29 ,  B26B19/388

Abstract: The invention relates to an electric shaver (1) comprising a cutter unit (3), an electric motor (4), a load detector arranged to detect a load current of the motor (4) and a controller. The controller switches the average voltage from a first level to a second level once the load current exceeds a first threshold value (TH_TH), and switches the average voltage from the second level back to the first level if the load current falls below a second threshold value (TH_TL) and stays below the second threshold value (TH_TL) for a predefined time period. By operating on a lower energy consumption when the cutter unit of the shaver is not in contact with the skin, energy is saved without the need for a proximity sensor.