Edge detector of an input square wave
An application of the EdgeTrigger block function is also shown in the Busy.zcos test program.
The “Busy.zcos” test program represents a pre-study making it possible to detect instability on the network frequency, following a disturbance of the speed signal, itself generated by a load step on the network.
In this program, we generate a damped sinusoid sin sin(x)/x as input. During the transition, a “Busy” RS flip-flop is armed as long as oscillations persist in a programmable band.
The RS flip-flop is reset to 0 when the network is detected stable again, with the programmable tolerance.