{
  "$type": "site.standard.document",
  "description": "A high efficiency battery charger. The high-efficiency battery charger can include a first transformer to produce a charging current, a second transformer to produce a maintenance current lower than the charging current, a power feed circuit having an input for connection to a power source, and…",
  "path": "/patents/973779",
  "publishedAt": "2014-06-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J7/04",
    "SHUM HENRY [CN]"
  ],
  "textContent": "A high efficiency battery charger. The high-efficiency battery charger can include a first transformer to produce a charging current, a second transformer to produce a maintenance current lower than the charging current, a power feed circuit having an input for connection to a power source, and control circuitry configured to detect a depleted battery to cause the power feed circuitry to feed power to the first transformer while disabling the second transformer, and to detect a charged battery to cause the power feed circuitry to feed power to the second transformer while disabling the first transformer.",
  "title": "High-efficiency battery charger"
}