{
  "$type": "site.standard.document",
  "description": "The present invention provides a method of determining a charging capacitance of a capacitor in an air bag system using a bus system. The method is a method of determining a charging capacitance of a capacitor in which a charging capacitance of a capacitor required for activating an air bag system…",
  "path": "/patents/1080655",
  "publishedAt": "2005-01-19T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60R21/017",
    "DAICEL CHEM [JP]"
  ],
  "textContent": "The present invention provides a method of determining a charging capacitance of a capacitor in an air bag system using a bus system. The method is a method of determining a charging capacitance of a capacitor in which a charging capacitance of a capacitor required for activating an air bag system normally is obtained from the following formula (I). C = 2E/V (In the formula, C represents a capacitor charging capacitance, V represents a charging voltage, and E represents the minimum ignition energy required for making the heat generating portion of the igniter generate heat to ignite a priming, which is obtained by the following formula (II): E = Imin x (Rmax + r1 + r2) x T + w x 10 Imin: the minimum ignition current value (A) Rmax: the maximum resistance value of the heat generating portion ( OMEGA ) r1: an ON resistance value of the switching circuit (the maximum ON resistance value at 150 DEG C) ( OMEGA ) r2: a resistance value of the other elements ( OMEGA ) T: a time period in which a current flows in the heat generating portion (sec) w: a power consumed by the whole integrated circuit when the switching circuit is OFF)",
  "title": "METHOD FOR DETERMINING CHARGING CAPACITANCE OF CAPACITOR"
}