http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8497647-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1af53b957562ba30b5b4acd04c594e5b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02P6-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B19-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02P6-182 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02P6-18 |
| filingDate | 2012-10-29^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-07-30^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c27c384eb2d6275540d7b2b26c47e978 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0df322de118f8ed745e9d9efdbc5b497 |
| publicationDate | 2013-07-30^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-8497647-B1 |
| titleOfInvention | Motor spindle control system and method |
| abstract | A control system and method for a multi-phase motor substantially reduces or eliminates jitter resulting from. drive mismatch by replacing a conventional trapezoidal drive profile with a drive profile that causes the voltage applied across active phases of the motor to match the back-EMF across those phases. In an ideal motor, the back-EMF is substantially sinusoidal, and although the drive profile applied to each phase is not truly substantially sinusoidal, the drive voltage across the active phases is substantially sinusoidal. In a non-ideal motor, the back-EMF is not truly sinusoidal and the drive profiles applied to each phase are calculated to cause the drive voltage across the active phases to match the back-EMF across those phases. |
| priorityDate | 2006-08-23^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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