http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2016143108-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f56b5174f7d196258707ccf1d609796e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05B47-24 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05B45-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05B45-382 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05B33-0851 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05B45-385 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05B33-0818 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05B44-00 |
| filingDate | 2015-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c1ede40d18b73a39f80415c41628a999 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b7490bc1f9685fd3561057497c2dcf3d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_955222f1326777e1ffed3aa6ca5cd636 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5ff9955fd939ad0e15562e0dbbd29765 |
| publicationDate | 2016-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2016143108-A1 |
| titleOfInvention | Led drive method and led drive device |
| abstract | Reduction of flicker when an LED is in a low brightness state and reduction of size of an LED drive device are realized. n A voltage conversion unit includes a coil and a first switch and converts an AC voltage into a first voltage which is a DC voltage by controlling the first switch to be on in an on-pulse period of a first drive signal. The constant current drive unit is supplied with the first voltage and generates a drive current Id having a current value according to light control information. An LED control unit compares brightness based on the light control information and reference brightness, generates a first drive signal based on an error between the first voltage and a target voltage representing a target of the first voltage when the brightness is higher than the reference brightness, and generates the first drive signal having a predetermined fixed on-pulse period when the brightness is lower than the reference brightness. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2021243866-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10278258-B2 |
| priorityDate | 2014-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.