{
  "$type": "site.standard.document",
  "description": "A load access detection method, a switch circuit, and a battery management system, relating to the field of circuit technology. The load access detection method includes: detecting a voltage at a first detection point, where the first detection point is electrically connected to a positive…",
  "path": "/patents/1415052",
  "publishedAt": "2022-12-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L3/0046",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO LTD [CN]"
  ],
  "textContent": "A load access detection method, a switch circuit, and a battery management system, relating to the field of circuit technology. The load access detection method includes: detecting a voltage at a first detection point, where the first detection point is electrically connected to a positive electrode of a battery group (301) in a battery pack (30) through a bridging resistor R1; detecting a voltage at a second detection point, where the second detection point is short-circuited with the first detection point when the battery pack (30) is connected to a load circuit (40); if a voltage difference between the voltage at the first detection point and the voltage at the second detection point is less than or equal to a preset voltage threshold, controlling a switch circuit (20) to enter a pre-charging mode, and pre-charging a load capacitor C1 in the load circuit (40) through the battery pack, where a charging current of the switch circuit (20) in the pre-charging mode is less than a charging current of the switch circuit (20) in a charging mode.",
  "title": "LOAD ACCESS DETECTION METHOD, SWITCH CIRCUIT AND BATTERY MANAGEMENT SYSTEM"
}