Comparator Calculations! (Setting Hysteresis)

Comparators are a fundamental building block of electronics. Let’s discuss how to use a comparator, their ideal and nonideal characteristics, and walk through some calculations to set thresholds and hysteresis.

This circuit is how our Temperature Monitor, Seth, will accurately and quickly respond to overtemperature faults.

#Safe3DPrinting #Seth #ThermalRunaway
Next topics:
Vref Selection (Series & Shunt) & Temperature Error Analysis
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[JD-edqr]

Very good Comparator explanation. correction; This is the BEST ! comparator explanation I have seen so far on YouTube. The news networks really should observe how public speaking is done properly. Very well Done ! Looking forward to more EEforEveryone content.

[jguy]

Good video, although I struggled quite a bit to follow along. It would be immensely helpful if you drew out the circuit and then ran through the equations by hand on paper (or digital equivalent), showing where each resistor in the circuit is and perhaps speaking a touch slower. I'm working on building a similar circuit, and it seems everything I need is in this video, I'm just struggling to parse it.

[normallyopen]

I've seen many comparator circuits without hysteresis. Now I only recommend comparators with built in hysteresis lol. MCP6541 FTW =) (6mV?).

OR'ing comparators is another great tool.

Very information dense, but a very worthwhile topic!

I was taught much larger hysteresis voltages, rather than the small-ish voltages required for stability over temp, small sensor fluctuations, input bias etc. All the theory is the same. Just another tool in the toolbox =)

[programmingtips]

Thanks for all your effort into these!

[kyhldk]

One of the first things we learned at Uni (as an EE anyway)
was start with as simple for a model as you can and then built on it till you got the specs you need

like does it matter that you signal is offset by 10mV when the signal is 5V, not really

but it is a hard thing to learn not make everything "perceft"

good video
hysteresis is a super useful tool both in hardware and software

[josepeixoto]

those 4th decimal places are ...ridiculous?

[dmeemd]

Don't be hysterical, get hysteresis! AWESOME joke 🤦🏻‍♂️ LoL (making fun of my own bad joke, nothing in the video for those that comment before watching videos LOL) --- Anyway it's great because I've had applications where all I needed was hysteresis and others where I just use window comparator and vise-versa (and so one with all types of combinations in between) -- intentionally vague btw, but I digress 😊 Also, great video!!!