{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "A control system (100) for an electric heater (HE), e.g., an electric catalyst heater (ECH), includes a current sensor (108), a voltage sensor (106), a switching element (110), and a control circuit. The control circuit (120) is coupled to the current sensor (108), the voltage sensor (106) and a…",
  "path": "/patents/1093241",
  "publishedAt": "2003-09-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G05D23/2401",
    "DELPHI TECH INC [US]"
  ],
  "textContent": "A control system (100) for an electric heater (HE), e.g., an electric catalyst heater (ECH), includes a current sensor (108), a voltage sensor (106), a switching element (110), and a control circuit. The control circuit (120) is coupled to the current sensor (108), the voltage sensor (106) and a control terminal of the switching element (110) and varies a control signal on the control terminal to maintain the temperature of the heating element (HE) within a predetermined temperature range.",
  "title": "Control system for an electric heater"
}