1results about How to "Expand the input range" patented technology

The embodiment of the present application provides a wide voltage range voltage comparison circuit and a wide voltage range voltage processing circuit, the wide voltage range voltage comparison circuit comprises: an input voltage resistance module, which is used for receiving a first voltage and a second voltage, and converting the first voltage and the second voltage into a third voltage and a fourth voltage; a clamping voltage resistance module, which is used for receiving the third voltage and the fourth voltage, and obtaining voltage resistance protection through clamping when the accepted voltage is a high voltage domain, and outputting a first current and a second current; a first mirroring module, which is used for performing mirroring processing on the first current to obtain a third current; a second mirroring module, which is used for performing mirroring processing on the second current to obtain a fourth current; and an inverse output module, which is used for outputting a high or low potential according to the size of the third current and the fourth current. The first mirroring module, the second mirroring module and the input voltage resistance module improve the voltage output range and can amplify the current, and thus the wide range voltage signal comparison is realized.