Temperature over-limit automatic temperature adjustment socket circuit using temperature switch integrated circuit MAX6502

The circuit is shown in the figure. It consists of a temperature monitoring switch, a relay control circuit, a language circuit, an audio power amplifier circuit and an AC step-down rectifier circuit. When the temperature of the monitored object or body exceeds the set temperature, the socket XS is powered and the ventilation or cooling facility plugged into it operates. At the same time, the sound circuit is triggered to sound, drawing attention to the temperature change. MAX6502 is one of the temperature switch series products produced by MAXIM Company. Its internal functional block diagram is basically the same as MAX6501, but its output stage is a push-pull output. The functional block diagram is shown in the figure below. When the detected temperature exceeds the threshold temperature, its output (TOVER) is high.