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2. 发明授权

US06538404B2 Motor apparatus 有权
标题翻译：电机装置
公开(公告)号：US06538404B2
公开(公告)日：2003-03-25
申请号：US09782755
申请日：2001-02-13
申请人： Hideaki Kato , Takashi Ogawa , Tetsuo Nomoto , Yuuichi Izawa
发明人： Hideaki Kato , Takashi Ogawa , Tetsuo Nomoto , Yuuichi Izawa
IPC分类号： H02P506
CPC分类号： H02P6/182 , H02M7/53871 , H02P6/21
摘要： A motor apparatus, such as a DC brushless motor, is provided for the obtaining a position detection signal by detecting the intersection of the divided voltage of a bus voltage and three phases of the divided voltage of the three phases by a comparator which results in the central position of a flat portion. For the divided voltage for the three phases of the respective positive terminal of the comparator, the comparison voltage obtained by dividing the voltage between the divided voltage for the three phases of the following phase in the order and the divided voltage of the bus voltage is applied to the respective negative terminal. As the comparison voltage is phase shifted, the position can be detected by making a slant position ahead of the flat point of the intersection. When the comparison voltage obtained by dividing the voltage between the divided voltage for the three phases of the preceding phase in the order and the divided voltage of the bus voltage is applied to the respective negative terminal, as the phase is shifted in the opposite direction, the position can be detected by making a slant position near the flat point of the intersection. Thereby, the motor apparatus having an intersection whose position is to be detected, can be detected precisely even when the intersection is a flat crossing and is unclear.
摘要翻译：提供诸如DC无刷电动机的电动机装置，用于通过比较器检测总线电压的分压和三相的分压的三相的交点来获得位置检测信号，该比较器导致平坦部分的中心位置。对于比较器的各个正极端子的三相的分压，施加通过将下一相的三相的分压与总线电压的分压之间的电压分压而得到的比较电压到相应的负端子。当比较电压相移时，可以通过使交叉点的平坦点之前的倾斜位置来检测位置。当通过将前一相的三相的分压和总线电压的分压之间的电压分压而获得的比较电压施加到各负极，当相位沿相反方向偏移时，可以通过在交叉点的平坦点附近设置倾斜位置来检测位置。因此，即使交叉路口是平交，也可以精确地检测具有要检测位置的交叉点的电动机装置，并且不清楚。

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