| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicular occupant crash protection device capable of using a low-priced switching element restricted in the rated current as a third switching element by restricting an outbreak of the overshoot current. SOLUTION: An airbag device 1 of this invention comprises an airbag control IC 3 structured of a control signal adjusting circuit 30, a high-side switching element 34, and a low-side switching element 35. The control signal adjusting circuit 30 adjusts timing of a high-side switching element control signal so that the high-side switching element 34 is adjusted last based on a low-side switching element control signal, a third switching element control signal and a check mode signal. With this structure, the high-side switching element 34 is turned last, and an outbreak of the overshoot current can be restricted. Consequently, a low-priced switching element restricted in the rated current can be used as a third-switching element. COPYRIGHT: (C)2008,JPO&INPIT
|
