{
  "$type": "site.standard.document",
  "description": "In order to achieve earth leakage detection with high detection accuracy with a simple configuration, a first end of coupling capacitor (Cc) is connected to a current path of power storage (20) connected to load (2) in a state of being insulated from a ground. Voltage output unit (11a, S1, S2, R3…",
  "path": "/patents/1410779",
  "publishedAt": "2024-05-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L3/0046",
    "SANYO ELECTRIC CO [JP]"
  ],
  "textContent": "In order to achieve earth leakage detection with high detection accuracy with a simple configuration, a first end of coupling capacitor (Cc) is connected to a current path of power storage (20) connected to load (2) in a state of being insulated from a ground. Voltage output unit (11a, S1, S2, R3, R4, OP2) generates a periodic voltage that changes periodically, and applies the periodic voltage to a second end of coupling capacitor (Cc) via impedance element (R1). Voltage measurer (11b) measures a voltage at a connection point between coupling capacitor (Cc) and impedance element (R1). Earth leakage determiner (11c) determines presence or absence of an earth leakage between the current path of power storage (20) and the ground on the basis of the measured voltage. Voltage output unit (11a, S1, S2, R3, R4, OP2) has a preparation period for constantly outputting a potential between a high-side potential and a low-side potential of the periodic voltage before a measurement period for outputting the periodic voltage.",
  "title": "EARTH LEAKAGE DETECTING DEVICE, AND VEHICULAR POWER SUPPLY SYSTEM"
}