{
  "$type": "site.standard.document",
  "description": "A battery polarity determination circuit includes a battery accommodating unit 2 including a first contact T1 and a second contact T2 to be in contact with respective electrode terminals of a battery BAT, a control device 3 that is connected via a resistor R to a voltage lead-out point P1 at which…",
  "path": "/patents/1417352",
  "publishedAt": "2023-09-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R19/14",
    "FDK CORP [JP]"
  ],
  "textContent": "A battery polarity determination circuit includes a battery accommodating unit 2 including a first contact T1 and a second contact T2 to be in contact with respective electrode terminals of a battery BAT, a control device 3 that is connected via a resistor R to a voltage lead-out point P1 at which a voltage of the battery is led out and determines a polarity of the battery BAT, a connection switching circuit 4 capable of switching between a first connection state and a second connection state, and a diode D having a cathode to be connected to a voltage read-in point P2 at which the resistor R and the control device 3 are connected to each other, and an anode to be grounded, wherein the control device 3 determines the polarity of the battery BAT based on a voltage V at the voltage read-in point P2 according to the connection state of the connection switching circuit 4, and a forward voltage V of the diode D is set so that the voltage V at the voltage read-in point P2 is not less than a lower limit value V of an absolute maximum rating of the control device 3.",
  "title": "BATTERY POLARITY DETERMINATION CIRCUIT, CHARGER, AND ELECTRONIC DEVICE"
}