Detection circuit for alternating current charging control guide signal of electric vehicle

The invention relates to the technical field of new energy electric control, discloses a detection circuit for an alternating current charging control guide signal of an electric vehicle, and provides the detection circuit for the alternating current charging control guide signal in order to solve a problem that alternating current charging reliability and stability of the electric vehicle in the current market are poor. Through optimized electronic components and ingenious circuit design, CC and CP signal sampling precision is improved, and AC charging reliability and stability are greatly improved; a short-circuit wire of the switch S2 is led out from the detection circuit, when the short-circuit wire is used for equipment debugging or emergency charging, the short-circuit wire can be directly connected with a signal ground to avoid software control logic of the switch S2, and on-site flexible application is facilitated; besides, functions of activating low-voltage power-on and delayed power-off of the vehi