{
  "$type": "site.standard.document",
  "description": "This application provides an insulation resistor detection circuit, method, and apparatus, and a storage medium thereof, to detect whether an insulation resistor is faulty. The insulation resistor detection circuit includes a state control unit, a first voltage division branch, a second voltage…",
  "path": "/patents/1401243",
  "publishedAt": "2025-09-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01R27/025",
    "HUAWEI DIGITAL POWER TECH CO LTD [CN]"
  ],
  "textContent": "This application provides an insulation resistor detection circuit, method, and apparatus, and a storage medium thereof, to detect whether an insulation resistor is faulty. The insulation resistor detection circuit includes a state control unit, a first voltage division branch, a second voltage division branch, and a processor. The state control unit is connected between a positive electrode and a negative electrode of a power supply of a to-be-detected apparatus. The first voltage division branch is connected in parallel to a first capacitor to obtain a first voltage waveform, and the second voltage division branch is connected in parallel to a second capacitor to obtain a second voltage waveform. The processor is connected to the state control unit, the first voltage division branch, and the second voltage division branch; calculates, based on the first voltage waveform and the second voltage waveform that are at a current moment, voltage feature values of the first capacitor at different moments in specified duration before the current moment and voltage feature values of the second capacitor at different moments; determines a next switching moment based on the voltage feature values of the first capacitor at the different moments and/or the voltage feature values of the second capacitor at the different moments; and control, at the next switching moment, the state control unit to switch a state.",
  "title": "INSULATION RESISTANCE DETECTION CIRCUIT, METHOD AND DEVICE AND STORAGE MEDIUM THEREOF"
}