{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "The protective circuit has predetermined number of single cells, which are successively switched in two cell rows (A,B,C,D), which lie parallel to each other. A phase current (Ia,Ib,Ic,Id) flowing while loading the battery pack in one cell row is compared with the phase current flowing in another…",
  "path": "/patents/988352",
  "publishedAt": "2013-07-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R31/385",
    "STIHL AG & CO KG ANDREAS [DE]"
  ],
  "textContent": "The protective circuit has predetermined number of single cells, which are successively switched in two cell rows (A,B,C,D), which lie parallel to each other. A phase current (Ia,Ib,Ic,Id) flowing while loading the battery pack in one cell row is compared with the phase current flowing in another cell row, where a signal is generated when no plausible deviation of the phase currents is found. The signal is generated when difference of the phase currentsexceed a predetermined value (IG). The non-plausible deviation is derived from a ratio of the phase currents to each other.",
  "title": "Protective circuit for a battery pack"
}