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公开(公告)号：US09768720B2
公开(公告)日：2017-09-19
申请号：US15234165
申请日：2016-08-11
Inventor： Sheng-Ming Yang , Kuang-Wei Lin
IPC: H02P7/00 , H02P23/14 , G05B19/416 , H02P21/14 , H02P21/20
CPC classification number: H02P23/14 , G05B19/416 , G05B2219/34015 , G05B2219/50185 , H02P21/14 , H02P21/143 , H02P21/20
Abstract: A method for estimating operation parameters of a servomotor is described. The method includes the steps of: driving the servomotor to rotate stably at an initial angular velocity; computing d- and q-axis components of an initial voltage when the servomotor rotates at the initial angular velocity; accelerating the servomotor to a predetermined angular velocity according to the initial voltage; and computing at least one operation parameter of the servomotor after the servomotor rotates at the predetermined angular velocity.
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公开(公告)号：US09331622B2
公开(公告)日：2016-05-03
申请号：US14529428
申请日：2014-10-31
Applicant: LITE-ON TECHNOLOGY CORP.
Inventor： Sheng-Ming Yang , Shih-Chuan Wang
CPC classification number: H02P23/04
Abstract: A method for suppression of vibration includes: adjusting a center frequency of a band-pass filter, and subjecting a to-be-detected signal to processing by the band-pass filter to result in a bandpass-filtered signal; performing signal processing upon the bandpass-filtered signal to obtain a converted result; determining whether a scanning process is completed, and repeating the previous two steps when a result is negative to obtain plural converted results; determining a maximum value among the converted results, and determining the corresponding center frequency to serve as an interference frequency; and setting the interference frequency as an operating frequency of a notch filter.
Abstract translation: 一种用于抑制振动的方法包括：调整带通滤波器的中心频率，并且使被检测信号经由带通滤波器进行处理以产生带通滤波信号; 对带通滤波信号执行信号处理以获得转换结果; 确定扫描过程是否完成，并且当结果为负时重复前述两个步骤以获得多个转换结果; 确定转换结果中的最大值，并确定相应的中心频率以用作干扰频率; 并将干扰频率设置为陷波滤波器的工作频率。
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