|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||F23Q-007/02 F23Q-021/00 F42C-021/00 F42C-011/00 F42C-015/40 B60R-021/26 B60R-021/28|
|미국특허분류(USC)||102/262; 102/206; 102/215; 102/218; 280/736; 280/742|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 2 인용 특허 : 11|
The disclosure describes a circuit arrangement for driving an occupant protection system gas generator whose ignition process can be influenced by a magnetic field; this is based on a switching control principle, with the load coil generating the magnetic field being itself used as a component part of the switching control. For a fast reduction of the magnetic field and thus for accelerating the ignition process, a resistor may by connected into the free-wheeling branch, which is bridged in normal operation. Alternatively, it is possible to effect a retu...
1. Circuit arrangement (1) for driving an occupant protection system (3) gas generator (2) whose ignition process can be influenced by a magnetic field, comprising: a) a coil (4) for generating an electromagnetic field, b) a supply voltage source (U) and a parallel self-sufficient capacitor (15), which will supply the gas generator (2) for a period of self-sufficiency in the event of a failure of the supply voltage source (U), c) a control circuit (12), which controls a circuit element (11) connected in series to the coil (4) by pulse width modulati...