With m ary threshold detector optisystem

#With m ary threshold detector optisystem full#

*Not sure yet, this might actually need to be a window comparator *Neutralising the diode drops of D3 and D4 would be nice, but speed is more important. Increasing C5 makes the overall response too sluggish. C5 provides the effect to some extent but real hysteresis would be better, since logic level output is lost when the input amplitude varies at 1 or 2 Hz - it needs to be immune to amplitude drops below the threshold down to about 0.5Hz. Once the output has gone high, I don't want it to just follow the input when it drops a little.

*Faster response to changes in input voltage *Better symmetry when using real-world resistors The output is rather rough at low frequencies and the response time isn't very good, but it about does what I want it to do.Д¬an anyone help me improve it? I would like: I've tried simulating it down to 10Hz and up to 1MHz. R1 would be adjustable in real life to set the threshold. One comparator is triggered if the input is over +1v, the other if it's under -1v.

#With m ary threshold detector optisystem full#

After spending far too many hours trying to cobble together an absolute value peak detector with a full wave precision rectifier, which would work up to 1MHz, I gave up on the precision rectifier part (which isn't really needed since I just want to detect input voltages over 1v В± peak) and did this way instead.