| 摘要 |
<p>An apparatus for failure identification suitable for determining between existence and nonexistence of failure of the squib (10) in occupant protecting system (U). The first terminal voltage generated between both the terminals of the squib (10) when the first monitor current is passed through the squib, and the second terminal voltage generated between both the terminals of the squib when the second monitor current is passed through the squib. The first and second terminal voltages are amplified by the differential amplifier circuit (60) into the first and second differentially amplified voltage. Thereafter, the difference between the first differentially amplified voltage and the second differentially amplified voltage is calculated to obtain the monitor voltage difference and it is compared with the reference voltage, and thereupon, decision between existence and nonexistence of a short-circuit in the squib (10) is made. <IMAGE></p> |
