http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-I221057-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4a334f48ed047c6f6ff401a967e748b7 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02P1-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02P1-50 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02P1-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02P6-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02P1-46 |
| filingDate | 1999-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2004-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_620c7c827a919652e9b51d5aa373bf34 |
| publicationDate | 2004-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-I221057-B |
| titleOfInvention | Synchronous motor |
| abstract | The purpose of the present invention is to provide a synchronous motor capable ensuring switching of staring operation to synchronous operation, attaining high reliability, and downsizing. The composition of the invented synchronous motor includes the followings: the housing main-body 1; the permanent magnetic rotor, which is arranged to have the capability of revolving by using the output axis 4 as the center; photo-sensor 12 for detecting the revolution number and the magnetic pole position of the permanent magnetic rotor 5; power frequency detection portion 24 for detecting frequency of AC power source 15; the stator 10, which winds around the armature coil 9 at the periphery of the stator core portion 8; the start operation circuit 14, which is capable of using the rectifying bridge circuit 20 to rectify AC current supplied by AC power source 15 so as to switch the first to the fourth transistors 16 to 19 to correspond to the revolution angle of the permanent magnetic rotor 5 for changing the direction of rectification current flowing toward the armature coil 9 and starting the operation by treating the permanent magnetic rotor 5 as a DC brushless motor; the synchronous operation circuit 21, which is capable of making short circuit between AC power source 15 and the armature coil 9 so as to have synchronous operation by treating the permanent magnetic rotor 5 as an AC synchronous motor; two-terminal bi-directional silicon controlled switches SW1 and SW2, which are disposed between AC power source 15 and the armature coil 9 to switch the connection with start operation circuit 14 or with the synchronous operation circuit 21; and the microcomputer 22 for control, in which three-terminal bi-directional switches SW1 and SW2 are switched from the start operation circuit 14 to synchronous operation circuit 21 for switching to the synchronous operation when the revolution number of a permanent magnet rotor 5 detected by an optical sensor 12 has reached around the synchronous speed with respect to the power source frequency detected by the power source frequency detection portion 24 after starting operation from the start operation circuit 14. |
| priorityDate | 1998-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.