Startup circuit for electronics in a hazardous environment

摘要

A fuel cell system includes a first subsystem that is classified to operate in a hazardous environment and a second subsystem that is classified to operate in a hazardous environment. The second subsystem includes a sensor to detect inflammable gas, and the second subsystem is adapted to control communication of power to the first subsystem based on whether the second subsystem detects a concentration of the flammable gas exceeding a predefined threshold.