CORRECTING OFFSET AND GAIN DRIFT RELATED ANGLE ERR

专利名称：CORRECTING OFFSET AND GAIN DRIFT

RELATED ANGLE ERRORS WITH MOTORPOSITION DETECTORS

发明人：STAEBLER, Martin,VON MOLO, Ferdinand申请号：EP17863236.0申请日：20171019公开号：EP3529880A1公开日：20190828

摘要：A sort buffer includes a phase sector determination circuit, a phase sectorupdate circuit, and a phase sector completion circuit. The phase sector determinationcircuit is configured to determine a phase sector corresponding to a phase of a first sineand cosine sample pair received from an encoder or resolver. The phase sector updatecircuit is configured to determine whether a second sine and cosine sample pair

corresponding to the phase sector is stored in a lookup table (LUT) and, in response to adetermination that a second sine and cosine sample pair corresponding to the phasesector is not stored in the LUT, store the first sine and cosine sample pair in the LUT. Thephase sector completion circuit is configured to determine whether the LUT has stored,for each of a plurality of phase sectors, a corresponding sine and cosine sample pair.

申请人：Texas Instruments Incorporated

地址：P.O. Box 6574 Mail Station 3999 Dallas, TX 75265-74 US

国籍：US

代理机构：Zeller, Andreas

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