公开(公告)号：US20140070740A1

公开(公告)日：2014-03-13

申请号：US14081524

申请日：2013-11-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyoung-il KIM ,  Yong-ho YOU ,  Seong-ho SHIN ,  Young Jung YUN ,  Yae-young KIM ,  Gwon-hoon KIM ,  Ho-bin HWANG ,  Ji-young BYUN

IPC: H02P6/08

CPC classification number: H02P6/08 ,  H02P6/06 ,  H02P6/34 ,  H02P23/0004 ,  H02P23/22

Abstract: An image forming apparatus includes an engine unit to perform an image forming job; an engine control unit to control the operation of the engine unit; a brushless direct current (BLDC) motor to drive the engine unit; a sensor unit to sense electric angle information and driving velocity information of the BLDC motor; a communication interface to receive a digital control command with respect to the BLDC motor from the engine control unit; a driving signal unit to generate a driving signal to control the BLDC motor; and a digital control unit to control the operation of the driving signal unit in a digital phase locked loop (PLL) manner for feedback controls the BLDC motor, based on the received digital control command, the detected electric angle information and the driving velocity information and a digital gain value as a control factor with respect to the BLDC motor.

Abstract translation: 图像形成装置包括执行图像形成作业的发动机单元; 发动机控制单元，用于控制发动机单元的操作; 用于驱动发动机单元的无刷直流电动机（BLDC）; 用于检测所述BLDC电动机的电角信息和驱动速度信息的传感器单元; 通信接口，用于从发动机控制单元接收关于BLDC电动机的数字控制命令; 驱动信号单元，用于产生用于控制所述BLDC电动机的驱动信号; 数字控制单元，用于以数字锁相环（PLL）方式控制驱动信号单元的操作，用于基于所接收的数字控制命令，检测到的电角度信息和驱动速度信息来反馈控制BLDC电机;以及 相对于BLDC电动机的数字增益值作为控制因素。

公开(公告)号：US20140333250A1

公开(公告)日：2014-11-13

申请号：US14177433

申请日：2014-02-11

Applicant: Samsung Electronics Co., Ltd

Inventor： Yong-ho YOU ,  Hak-young KIM ,  Ji-young BYUN ,  Sang-hyuk JUNG ,  Ho-bin HWANG

IPC: H02P8/38

CPC classification number: H02P8/38 ,  H02P8/12

Abstract: An image forming apparatus may include an engine portion used to perform an image forming job, a step motor configured to start the engine portion, a driver including a resistor that measures current that flows to a coil of the step motor and is configured to provide a predetermined constant current to the step motor, and a drive controller configured to measure a load level of the step motor based on a voltage value of the resistor and to control the driver to provide the constant current that corresponds to the measured load level.

Abstract translation: 图像形成装置可以包括用于执行图像形成作业的发动机部分，被配置为启动发动机部分的步进电动机，包括测量流向步进电动机的线圈的电流的电阻器的驱动器， 以及驱动控制器，被配置为基于所述电阻器的电压值来测量所述步进电机的负载水平，并且控制所述驱动器以提供与所测量的负载水平相对应的恒定电流。