Automatic temperature control alarm circuit

The utility model provides an automatic temperature control alarm circuit, which realizes over-temperature automatic warning of a monitored environment, and is characterized by comprising a processing chip, and a heat sensing module, a temperature setting module, a temperature display module and an alarm module which are respectively connected with the processing chip, the thermal sensing module comprises a thermal sensing device and a filtering device, the thermal sensing device is connected with a sampling pin of the processing chip, and the sampling pin is grounded by the filtering device; the temperature setting module comprises a plurality of switches for temperature setting; the temperature display module comprises a nixie tube and a nixie tube driving chip, and the nixie tube is set to be used for displaying a temperature set value and a current sensing temperature value; the alarm module comprises a buzzer and a buzzer driving circuit. 本实用新型提出一种自动温控报警电路，实现对监控环境的超温自动示警，其特征在于，包括处理芯片，以及分别与该处理芯片连接的热传感模块、温