{
  "$type": "site.standard.document",
  "description": "Various embodiments of the teachings herein include a charging circuit to charge a capacitor of an optical alarm device, connected between the capacitor and a charging bus. The capacitor supplies power to a light-emitting unit. The charging circuit comprising: a voltage detection circuit to detect…",
  "path": "/patents/1379152",
  "publishedAt": "2026-03-05T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J7/345",
    "Siemens Schweiz AG"
  ],
  "textContent": "Various embodiments of the teachings herein include a charging circuit to charge a capacitor of an optical alarm device, connected between the capacitor and a charging bus. The capacitor supplies power to a light-emitting unit. The charging circuit comprising: a voltage detection circuit to detect a first voltage of the charging bus; a boost circuit connected to the charging bus to perform voltage boosting, to charge the capacitor with the boosted voltage; and a controller. The controller controls charging the boost circuit to the capacitor, so the voltage of the capacitor is equal to a second voltage after the light-emitting unit emits light at a target light intensity. The second voltage is equal to the sum of the first voltage and a predetermined difference.",
  "title": "Charging Circuit And, Charging Method"
}