Overload detector with dynamic slope adaptation

摘要

A method and circuit arrangement for temperature monitoring of electronic components (in particular semiconductor components, such as, for example, mosfet transistors) or electrical appliances, whereby by means of a temperature-dependent component, the on or in the vicinity of the component to be monitored or of the apparatus is mounted, and by means of a with the temperature-dependent component, which is coupled to the microcontroller or window comparator the temperature gradient and / or the rate of change of the temperature at the component or device to be monitored can be determined, based on the determined slope of the temperature and / or the rate of change of the temperature in the case of a defined threshold value of the temperature gradient and / or the rate of change of the temperature by the microcomputer protective mechanisms for the component to be monitored or apparatus to be monitored can be activated, wherein the threshold value for the temperature gradient and / or the rate of change in the case of the protective mechanisms can be activated on the basis of a currently detected temperature value of the component to be monitored or device takes place, or as a function of a temperature already reached of the component to be monitored or device.n="28"