http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2334833-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_492c120425fad747d2edd3ed2f1990c7 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E05B47-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02J9-061 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E05B47-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H02J9-06 |
| filingDate | 1998-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ae911600a8eb46fe7d3c9edede02528e |
| publicationDate | 1999-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2334833-A |
| titleOfInvention | Backup power supply arrangement for an electrically controlled lock actuator |
| abstract | A primary power source 12 and a reserve battery source 14 are provided for an electrically controlled lock actuator system which has a lock actuator 16 energised via a transistor 42 controlled by a processor 28. The system may be part of a vending machine. Primary source 12 is connected to actuator 16 via a diode 24, and battery 14 is connected to actuator 16 via a diode 20, a normally-open switch 18 and a diode 26. Primary source 12 is also connected to the input 52 of a voltage regulator 50 and via a diode 22 to a point intermediate diode 20 and switch 18. Primary source 12 is normally at a sufficiently higher voltage than battery 14 such that if switch 18 is closed, then diode 20 is off, actuator 16 is powered from source 12, a supply input Vcc of processor 28 receives power from source 12 via regulator 50, and a voltage is applied to an input 30 of processor 28 from source 12 via diode 22 and switch 18. If primary source 12 fails, power is supplied from battery 14 via diode 20, switch 18 and diode 26 both to actuator 16 and (via regulator 50) to processor 28, and input 30 receives voltage from battery 14 via diode 20 and switch 18. The arrangement of switch 18 and the diodes ensures that the battery 14 is only used when necessary, thus extending its life. Input 30 may be a triggering input to which voltage is applied only when switch 18 is closed, processor 28 being responsive to this input to operate actuator 16 when lock control information is received at an input 36, such as from a card reader for a card which closes switch 18 when inserted into a card opening of the reader. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102007029976-B4 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102007029976-A1 |
| priorityDate | 1998-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID414858817 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID5720 |
Total number of triples: 17.