发明名称 |
RIPPLE EXTRACTION DEVICE, MOTOR CONTROL APPARATUS, VEHICLE SEAT, AND RIPPLE EXTRACTION METHOD |
摘要 |
<p>A ripple extraction device (3) extracts ripple components contained in a current signal of a motor (2). The ripple extraction device (3) is provided with; a current-voltage converter (10) that converts a current signal of the motor (2) into a voltage signal; a filter (40) that filters the voltage signal converted by the current-voltage converter (10), and attenuates the ripple components; and a differential amplifier ( 5 0) that obtains the difference between the voltage signal converted by the current-voltage converter (10) and an output signal of the filter (40).</p> |
申请公布号 |
EP2688197(A1) |
申请公布日期 |
2014.01.22 |
申请号 |
EP20120758207 |
申请日期 |
2012.03.13 |
申请人 |
TS TECH CO., LTD. |
发明人 |
TANAKA, SOICHIRO;KOWATA, KOHEI;ITO, TAKAYOSHI;SHIMAZAKI, HAYATO |
分类号 |
H02P7/06;B60N2/02;H02P7/00;H02P7/29 |
主分类号 |
H02P7/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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