公开(公告)号：WO2013058045A2

公开(公告)日：2013-04-25

申请号：PCT/JP2012/073769

申请日：2012-09-11

Applicant: CANON KABUSHIKI KAISHA ,  TSUCHIYA, Toshikazu

Inventor： TSUCHIYA, Toshikazu

CPC classification number: H02P6/003 ,  G02B26/122 ,  G03G15/043 ,  H02P6/12 ,  H02P6/16 ,  H02P6/21 ,  H02P6/30 ,  H04N1/113

Abstract: A CPU 1 determines that a motor is undergoing a forward rotation when a time difference between a detection timing of a light beam deflected by a rotating polygonal mirror and an output timing of a detection signal from a magnetic detector element 5 falls within a predetermined range, and that the motor is undergoing a reverse rotation when the time difference does not fall within the predetermined range. With this configuration, a detection circuit for detecting voltage induced in three phases is unnecessary, and therefore the cost can be reduced. Furthermore, there is no need to detect voltage induced in each of the three phases. As it suffices to simply detect the time difference, the amount of time required to detect a rotation direction can be reduced.

Abstract translation: 当由旋转多面镜偏转的光束的检测定时与来自磁检测器元件5的检测信号的输出定时之间的时间差落在预定范围内时，CPU 1确定电机正在正转， 并且当时间差不落在预定范围内时，马达正在经历反向旋转。 利用这种结构，不需要用于检测三相感应电压的检测电路，因此可以降低成本。 此外，不需要检测在三相中的每一个中感应的电压。 只要简单地检测时间差即可，可以减少检测旋转方向所需的时间。

公开(公告)号：WO2015002682A1

公开(公告)日：2015-01-08

申请号：PCT/US2014/033532

申请日：2014-04-09

Applicant: THE BOEING COMPANY

Inventor： CAMERON, Douglas C.

IPC: H02P25/02 ,  H02P6/08 ,  H02P25/10

CPC classification number: H02P6/003 ,  B60L11/04 ,  B60L15/007 ,  B60L15/02 ,  B60L2220/20 ,  B60L2240/423 ,  B60L2240/429 ,  H02M7/53871 ,  H02M7/5395 ,  H02M7/797 ,  H02P6/085 ,  H02P6/30 ,  H02P25/03 ,  H02P25/034 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/70 ,  Y02T10/7077

Abstract: A method and apparatus for controlling a change in a quadrant of operation of a brushless direct current motor. A quadrant change in an operation of a motor is identified. In response to identifying the quadrant change, selected ones of a plurality of switches in a switch bridge are selected to be controlled to couple a direct current power source to the windings of the motor to change a direction of an actual current in the windings.

Abstract translation: 一种用于控制无刷直流电动机的运转象限变化的方法和装置。 识别电动机操作中的象限变化。 响应于识别象限变化，选择开关桥中的多个开关中的选定的开关被控制以将直流电源耦合到电动机的绕组以改变绕组中的实际电流的方向。

公开(公告)号：WO2013058045A3

公开(公告)日：2014-01-03

申请号：PCT/JP2012073769

申请日：2012-09-11

Applicant: CANON KK ,  TSUCHIYA TOSHIKAZU

Inventor： TSUCHIYA TOSHIKAZU

IPC: G03G15/04 ,  G02B26/10 ,  G03G21/16 ,  H02P6/12 ,  H02P6/16 ,  H02P6/20

CPC classification number: H02P6/003 ,  G02B26/122 ,  G03G15/043 ,  H02P6/12 ,  H02P6/16 ,  H02P6/21 ,  H02P6/30 ,  H04N1/113

Abstract: A CPU 1 determines that a motor is undergoing a forward rotation when a time difference between a detection timing of a light beam deflected by a rotating polygonal mirror and an output timing of a detection signal from a magnetic detector element 5 falls within a predetermined range, and that the motor is undergoing a reverse rotation when the time difference does not fall within the predetermined range. With this configuration, a detection circuit for detecting voltage induced in three phases is unnecessary, and therefore the cost can be reduced. Furthermore, there is no need to detect voltage induced in each of the three phases. As it suffices to simply detect the time difference, the amount of time required to detect a rotation direction can be reduced.

Abstract translation: 当由旋转多面镜偏转的光束的检测定时与来自磁检测器元件5的检测信号的输出定时之间的时间差落在预定范围内时，CPU 1确定电机正在正转， 并且当时间差不落在预定范围内时，马达正在经历反向旋转。 利用这种结构，不需要用于检测三相感应电压的检测电路，因此可以降低成本。 此外，不需要检测在三相中的每一相中感应的电压。 只要简单地检测时间差就可以减少检测旋转方向所需的时间。