针对如何通过汽车安全气袋点火电路设计 ,有效发出点火信号并防止安全气袋的漏点火和误点火两种非常严重的问题 ,介绍了点火电路的工作原理 ,并从点火电源、系统掉电、电路及气袋故障、路面干扰、上电干扰等方面分析了产生这两种问题的原因 ,提出了相应的措施 ,保证气袋控制系统有高可靠性和抗干扰能力。点火电路避免漏点火和误点火问题效能的验证包括在该文例举的实验曲线中 Aiming at the very serious problems of how to design the ignition circuit of automobile safety airbag, effectively send out the ignition signal and prevent the ignition airbag from being ignited and ignited, the working principle of the ignition circuit is introduced. The ignition power supply, the power-down of the system, Circuit and airbag fault, road surface interference and power-on interference, the reasons for these two problems are analyzed and corresponding measures are put forward to ensure that the air bag control system has high reliability and anti-interference ability. The verification of the effectiveness of the ignition circuit to avoid leakage ignition and misfiring problems is included in the experimental curves presented here