发明名称 |
Providing digital current ripple signal from analog armature current signal of DC motor, involves including current ripple detected from oversampling in further evaluation when non-conformance is detected |
摘要 |
An analog armature current signal is subjected to a threshold-based A/D conversion after filtration process. The analog armature current signal is then oversampled when switching the DC motor ON during start-up phase, and when disconnecting the DC motor during the drifting phase limited in predetermined clock rate. The method involves comparing the current ripple detected from the threshold-based A/D conversion and the current ripple detected from the oversampling. The current ripple detected from the oversampling is included in further evaluation when non-sufficient conformance of current ripple is detected.
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申请公布号 |
DE10028033(A1) |
申请公布日期 |
2001.12.13 |
申请号 |
DE20001028033 |
申请日期 |
2000.06.06 |
申请人 |
LEOPOLD KOSTAL GMBH & CO KG |
发明人 |
OTTE, STEFAN |
分类号 |
H02P7/06;G01P3/48;H02P7/29;(IPC1-7):G01P3/481;G01B7/30;H02P5/00;H02P6/18 |
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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