{
  "$type": "site.standard.document",
  "description": "The output current value of a direct-current power source (1) obtained by low-frequency, minute modulation of the input voltage of a switching converter (2) is detected in a circuit (7b) having an amplification factor switching function that switches the amplification factor between definite…",
  "path": "/patents/1101878",
  "publishedAt": "2002-09-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G05F1/67",
    "NAT INST OF ADVANCED IND SCIEN [JP]"
  ],
  "textContent": "The output current value of a direct-current power source (1) obtained by low-frequency, minute modulation of the input voltage of a switching converter (2) is detected in a circuit (7b) having an amplification factor switching function that switches the amplification factor between definite magnitudes synchronizing with the modulation, and by using a signal obtained by demodulating in a discriminator circuit (8) the output of this circuit synchronizing with the modulation to control the switching converter, the power point of the switching converter can be tracked to the maximum power point by following the change in state of the direct current power source.",
  "title": "Maximum power point tracking method and device"
}