{
  "$type": "site.standard.document",
  "description": "A lighting circuit turns on multiple semiconductor light sources. Multiple current sources are each coupled in series with a corresponding one from among the semiconductor light sources. A switching converter supplies a driving voltage Vacross each of multiple series connection circuits formed of…",
  "path": "/patents/1305765",
  "publishedAt": "2021-12-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H05B45/375",
    "KOITO MANUFACTURING CO., LTD."
  ],
  "textContent": "A lighting circuit turns on multiple semiconductor light sources. Multiple current sources are each coupled in series with a corresponding one from among the semiconductor light sources. A switching converter supplies a driving voltage Vacross each of multiple series connection circuits formed of the multiple semiconductor light sources and the multiple current sources. A converter controller controls a switching transistor of the switching converter based on a relation between a voltage across one from among the multiple current sources and a reference voltage having a positive correlation with the temperature T.",
  "title": "AUTOMOTIVE LAMP"
}