公开(公告)号：US11067998B2

公开(公告)日：2021-07-20

申请号：US16098594

申请日：2017-04-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dong Hun Lee ,  Young Do Kwon ,  Heum Yong Park ,  Min Jae Kim ,  Min Woo Ryu

IPC: B25J19/02 ,  G05D1/02 ,  B25J9/16 ,  B25J9/00 ,  B25J11/00 ,  A47L9/28 ,  A47L9/00 ,  A47L9/30 ,  A47L11/40

Abstract: Provided are a cleaning robot and a method of controlling the same, and more specifically, a cleaning robot provided to detect an obstacle in various directions and a method of controlling the same. The cleaning robot includes a light emitter configured to radiate light, a plurality of light receivers configured to receive a radiation of the light in a predetermined direction among radiations of the light reflected from an obstacle when the radiated light is reflected from the obstacle, a support plate to which the light emitter and the light receiver are fixed and which is rotatably provided, and a controller configured to detect the obstacle on the basis of output signals transmitted from the light emitter and the plurality of light receivers and rotation information of the support plate.

公开(公告)号：US10348226B2

公开(公告)日：2019-07-09

申请号：US15334045

申请日：2016-10-25

Applicant: Samsung Electronics Co., Ltd. ,  Industry-University Cooperation Foundation Hanyang University (IUCF-HYU)

Inventor： Young Jae Park ,  In Gun Kim ,  Hyun Seok Hong ,  Min Jae Kim ,  Sin-Ae Kim ,  Hyo Won Sin ,  Ju Lee

IPC: H02P6/14 ,  H02P6/182 ,  H02P27/08 ,  H02P6/15 ,  H02P6/18

Abstract: A device and control method for driving a sensorless brushless DC (BLDC) motor, particularly related to a technology configured to increase the accuracy of detection of Zero Cross Point through a non-commutation period in a pulse width modulation (PWM) control. The device for driving a sensorless BLDC motor to switch a current applied to a stator winding based on a position of a rotor includes a three phase inverter configured to convert a DC input voltage into a three phase AC voltage and supply the three phase AC voltage to the BLDC motor; a terminal voltage detector configured to detect a three phase terminal voltage from an output terminal of the three phase inverter; and a controller configured to perform a PWM control of the terminal voltage based on a three phase back electromotive force (EMF) included in the detected terminal voltage. The PWM control includes a non-commutation control in which the switching of the current does not occur.

公开(公告)号：US20170155347A1

公开(公告)日：2017-06-01

申请号：US15334045

申请日：2016-10-25

Applicant: Samsung Electronics Co., Ltd. ,  Industry-University Cooperation Foundation Hanyang University (IUCF-HYU)

Inventor： Young Jae Park ,  In Gun Kim ,  Hyun Seok Hong ,  Min Jae Kim ,  Sin-Ae Kim ,  Hyo Won Sin ,  Ju Lee

IPC: H02P6/182 ,  H02P27/08

CPC classification number: H02P6/182 ,  H02P6/157 ,  H02P6/187 ,  H02P27/08

Abstract: A device and control method for driving a sensorless brushless DC (BLDC) motor, particularly related to a technology configured to increase the accuracy of detection of Zero Cross Point through a non-commutation period in a pulse width modulation (PWM) control. The device for driving a sensorless BLDC motor to switch a current applied to a stator winding based on a position of a rotor includes a three phase inverter configured to convert a DC input voltage into a three phase AC voltage and supply the three phase AC voltage to the BLDC motor; a terminal voltage detector configured to detect a three phase terminal voltage from an output terminal of the three phase inverter; and a controller configured to perform a PWM control of the terminal voltage based on a three phase back electromotive force (EMF) included in the detected terminal voltage. The PWM control includes a non-commutation control in which the switching of the current does not occur.