{
  "$type": "site.standard.document",
  "description": "The electric heater, especially as an auxiliary heater for motor vehicles, includes a PTC heating element (52), a power semiconductor (51) to establish the current fed to the PTC heating element, and a control unit (50) to control the power semiconductor. A monitoring unit (53) determines whether…",
  "path": "/patents/1069545",
  "publishedAt": "2006-03-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60H1/2225",
    "CATEM GMBH & CO KG [DE]"
  ],
  "textContent": "The electric heater, especially as an auxiliary heater for motor vehicles, includes a PTC heating element (52), a power semiconductor (51) to establish the current fed to the PTC heating element, and a control unit (50) to control the power semiconductor. A monitoring unit (53) determines whether the power semiconductor is supplying current to the PTC heating element, and a breaker element (54,55) interrupts the current supply to the power semiconductor. The control unit causes operation of the breaker if the monitoring unit senses a current supply without a corresponding triggering of the power semiconductor by the control unit being produced. An independent claim is included for a method for the control of an electric heater, especially as an auxiliary heater for motor vehicles.",
  "title": "Electric supplementary heating for vehicles with current safety"
}