In this paper,the progress was made that high and low thres holds of voltage hysteresis comparators were adjusted alone.

To accomplish a voltage comparator with very low threshold and high precision that is quite complex in the integrated circuit of single power supply,a new comparator with extraordinary low threshold is designed.

It introduces a method of constructing high precision voltage comparator with 312 bit A/D converter IC7107, to the effect and the V\%\-\{in\} comparing precision can reach to 0.

The discriminator circuit is mainly composed of an integrated voltage comparator, MAX921, and owns the characters of very low power and low operating voltage.

Based on the analysis of some phenomena observed when applying integrated circuit operational amplifier as voltage comparators, this paper tries to present some causes and find out a solution by further analysing the observed deviations from theories; thus to strengthen the relationship between theory and experiment and to improve students expereimental capabilitie

Based on the experiments for the property of wheel speed sensor,the requirement for the circuit designed to process the signal from wheel speed sensor has been put forward,which consists of low pass filter as well as lagging comparator.

This paper describes the single-limit voltage comparator,Schmitt trigger and window voltage comparator each of which incorporates only a second-generation current conveyor (CCII).

This paper describes the single-limit voltage comparator,Schmitt trigger and window voltage comparator each of which incorporates only a second-generation current conveyor (CCII).