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1. 发明申请

WO2008084500A3 A METHOD FOR NOISE REDUCTION IN STEPPER MOTORS DURING HOMING AND SYSTEM THEREOF 审中-公开
标题翻译：一种用于在步进电机中抑制噪声的方法及系统
公开(公告)号：WO2008084500A3
公开(公告)日：2009-08-06
申请号：PCT/IN2008000009
申请日：2008-01-09
申请人： PRICOL LTD , ETTICKKAN PALANIAPPAN
发明人： ETTICKKAN PALANIAPPAN
IPC分类号： H02P8/32 , G01P1/11 , G05B19/19
CPC分类号： H02P8/32
摘要： The present invention relates to noise reduction in stepper motors during homing without compromising the torque. The proposed method is to drive the pointer (1) at rated voltage during forward direction and then continue to drive at rated voltage for small amount of time during reverse direction till the pointer (1) is accelerated [starting of pointer (1) in reverse] and then drive the motor at 10% to 30% lower voltage to reduce the noise and magnitude of bounce. This method ensures the initial torque required for the pointer (1) and also reduces the noise and bounce of pointer (1). During homing process, homing position is determined by the system by sensing the bounce back voltage using ADC (Analog to Digital Conversion) device.
摘要翻译：本发明涉及在归位期间步进电机的噪声降低，而不损害转矩。所提出的方法是在正向上以额定电压驱动指针（1），然后在反向方向上继续在额定电压下驱动少量时间，直到指针（1）加速[指针（1）反向启动 ]，然后以10％至30％的电压驱动电机，以减少反弹的噪音和幅度。该方法确保指针（1）所需的初始转矩，并且还减少指针（1）的噪声和反弹。在归位过程中，归位位置由系统通过使用ADC（模数转换）装置感测反弹电压来确定。

2. 发明申请

WO2008084500A2 A METHOD FOR NOISE REDUCTION IN STEPPER MOTORS DURING HOMING AND SYSTEM THEREOF 审中-公开
标题翻译：一种用于在步进电机中抑制噪声的方法及系统
公开(公告)号：WO2008084500A2
公开(公告)日：2008-07-17
申请号：PCT/IN2008/000009
申请日：2008-01-09
申请人： PRICOL LIMITED , ETTICKKAN, Palaniappan
发明人： ETTICKKAN, Palaniappan
IPC分类号： H02P8/32
CPC分类号： H02P8/32
摘要： The present invention relates to noise reduction in stepper motors during homing without compromising the torque. The proposed method is to drive the pointer (1) at rated voltage during forward direction and then continue to drive at rated voltage for small amount of time during reverse direction till the pointer (1) is accelerated [starting of pointer (1) in reverse] and then drive the motor at 10% to 30% lower voltage to reduce the noise and magnitude of bounce. This method ensures the initial torque required for the pointer (1) and also reduces the noise and bounce of pointer (1). During homing process, homing position is determined by the system by sensing the bounce back voltage using ADC (Analog to Digital Conversion) device.
摘要翻译：本发明涉及在归位期间步进电机的噪声降低，而不损害转矩。所提出的方法是在正向上以额定电压驱动指针（1），然后在反向方向上继续在额定电压下驱动少量时间，直到指针（1）加速[指针（1）反向启动 ]，然后以10％至30％的电压驱动电机，以减少反弹的噪音和幅度。该方法确保指针（1）所需的初始转矩，并且还减少指针（1）的噪声和反弹。在归位过程中，归位位置由系统通过使用ADC（模数转换）装置感测反弹电压来确定。

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