Control circuit for tail exhaust heating pipe of fuel cell

The invention provides a control circuit of a fuel cell tail exhaust heating pipe. The control circuit comprises a temperature acquisition module, a temperature range identification module and a heating pipe driving control module, the temperature acquisition module is used for acquiring a heating pipe temperature signal and outputting the acquired heating pipe temperature signal to the temperature range identification module; the temperature range identification module is used for judging whether the heating pipe temperature signal is within a temperature safety range or not and outputting a temperature judgment signal to the heating pipe driving control module; the heating pipe driving control module is used for controlling the heating pipe to be turned on or turned off according to the temperature judgment signal. According to the control circuit for the tail exhaust heating pipe of the fuel cell, the safety problems that heating is out of control, even explosion and the like possibly occur when the heatin