초록 ▼

An object of the present invention is provide an ignition circuit for a squib in an air bag in a vehicle able to supply sufficient energy to ignite the squib which does not use converter or a high capacity capacitor. The first capacitor 12 and the second capacitor 13 are charged by the battery 11. T

An object of the present invention is provide an ignition circuit for a squib in an air bag in a vehicle able to supply sufficient energy to ignite the squib which does not use converter or a high capacity capacitor. The first capacitor 12 and the second capacitor 13 are charged by the battery 11. The sensor 17 is closed and the control circuit 10 makes the NPN type transistor 19 active when a collision is detected. The squib 16 is connected to the junction of the first capacitor 12 and the second capacitor 13 so that sufficient energy can be supplied to the squib even when a converter is not used.

대표청구항 ▼

An ignition circuit for a squib in an air bag in a vehicle, comprising a battery; a first capacitor which is charged by said battery; a second capacitor which is connected in parallel with said first capacitor, and charged by said battery; a sensor that detects a collision of the vehicle; and an ign

An ignition circuit for a squib in an air bag in a vehicle, comprising a battery; a first capacitor which is charged by said battery; a second capacitor which is connected in parallel with said first capacitor, and charged by said battery; a sensor that detects a collision of the vehicle; and an igniting means which connects said first capacitor and said second capacitor in series, and supplies electric energy charged in said first capacitor and said second capacitor to said squib when the collision of said vehicle is detected by the sensor.