A novel, high speed window comparator circuit

Abstract

Circuits with voltage hysteresis properties are often utilized in systems operating under noisy input conditions. A very simple window comparator circuit is described in this paper, wh ich can be used in low voltage and fast varying input conditions. The proposed circuit was simulated using LTspice-IV and experimental results are presented.

Multi-level swell voltage control for minimizing the damage to an on-grid system

“…The design of a voltage swell detector usually uses a window comparator. In general, people often apply the IC Op-amp or IC Module [18][19][20], which is appropriate for analysing small-size signals and uses a low-voltage source. Adaptation for the voltage swell detection still has a limit.…”

“…For the clamping voltage of the capacitor during discharge, see equation (18). Vdc_in increases in window VH and VL.…”

“…The voltage drop (Vcmp) across the load 237V -231V at voltage level (Vt) 344V -366V Stage2 will work, causing the electric current (Cl) to flow through the load 2.56A -4.34A, causing the voltage drop (Vcmp). The load bracket 248V -211V and at voltage level (Vt) 386V -406V Stage3 will work, causing electricity (Cl) to flow through the load 4.85A -5.22A, causing voltage drop (Vcmp) across the load 224V -236V to control the overvoltage of the transient not exceeding the standard value by a control circuit that does not cause damage due to the analysis of damage characteristics and potential impact (FMEA) before the real test.Table2demonstrates the oscilloscope of the clamping voltage Vcmp and electric current Isvss flowing through SVSS of swell voltage at these sizes inFigures 16,17,and 18, respectively.…”