Circuit for triggering passenger protection device, has ignition energy storage that is rechargeable by electrical system, where charging of storage is interrupted with occurrence of humidity in arrangement

摘要

The arrangement has a humidity sensor (7) to detect humidity in the arrangement. An ignition energy storage (5) is rechargeable by an electrical system, where the charging of the storage is interrupted with occurrence of the humidity. A boost-converter (6) recharges the storage in a voltage level that is increased in relation to the system, and is deactivated with occurrence of the humidity. A discharge device discharges the storage.