High-precision interval response circuit

The invention provides a high-precision interval response circuit, and belongs to the technical field of electronic circuits, the high-precision interval response circuit comprises an interval setting circuit, a comparison and summation circuit and a result output circuit, and the interval setting circuit sets an upper limit voltage U1 and lower limit voltages U2 and U1gt by using resistor voltage division and an operational amplifier following function; u2; the comparing and summing circuit is used for comparing the input voltage Vin with the upper limit voltage U1 and the lower limit voltage U2, and outputting a voltage comparison result by using an integrating circuit and a proportional amplifying circuit; the result output circuit can amplify the power of the signal type voltage transmitted by the pre-stage circuit, so that the signal type voltage has a current driving capability and a voltage holding capability not lower than 2ms; when the input direct-current voltage Vin exceeds the preset upper limit v