OVER-TEMPERATURE PROTECTION CIRCUIT AND TEST DEVICE

The embodiments of the present application relate to the field of temperature control. Provided are an over-temperature protection circuit and a test device. The over-temperature protection circuit is configured to control the operating state of a connected heating module, and comprises a temperature measurement module, a comparison module, a control module, and a first protection switch and a second protection switch which are connected in series. The temperature measurement module is arranged on the heating module and is configured to convert acquired temperature information of the heating module into a voltage signal and output the voltage signal to the comparison module; the comparison module is configured to output a control level to the first protection switch according to the voltage signal; the first protection switch is connected to the heating module and is configured to be adjusted to be in a turned-on state or a turned-off state according to the control level; the control module is configured to o