operational amplifier - LM358 comparator circuit - Electrical ...
Jan 21, 2025 · I drew the following circuit using LM358 opamp in order to understand the comparator behavior. I have few questions regarding the circuit below: How should I wire the unused opamp? …
How exactly does a comparator work? - Electrical Engineering Stack …
Apr 12, 2015 · How exactly does a comparator work? Comparators have many uses and its concept is not too hard to grasp. What I don't understand however is how exactly it compares two voltages. …
schmitt trigger - How to calculate hysteresis of a comparator ...
Oct 16, 2024 · How to explore it The best way to understand this idea is to try implementing hysteresis step by step in your op-amp inverting comparator circuit. Let's simulate each step with a separate …
Can someone explain how this transistor comparator works?
Apr 10, 2015 · The circuit is a comparator and can be remarkably useful more or less as shown. I have used a circuit essentially the same as that in production equipment to meet a requirement which was …
Comparator with hysteresis; what resistors go where?
Apr 11, 2023 · The comparator does it during the transition with the help of the positive feedback. What positive feedback is This is positive feedback "out of control" or as they call it, "self-reinforcing …
What is the purpose of pulling up the output of a comparator to VCC ...
Aug 23, 2025 · The LM311 device is a comparator with an uncommited transistor output. This means that the output pin needs a pull-up resistor so that it can create a voltage signal and also pin 1 (the …
batteries - LM339 Comparator Battery Discharge Cutoff Circuit ...
Dec 16, 2024 · Don't bother: a low voltage cutoff based on the total battery voltage is useless because it doesn't protect the Li-ion battery. By the time it shuts off, one of the cells is likely to be over …
batteries - Battery with low-voltage cut-off comparator circuit ...
Sep 23, 2022 · 6 I have a simple comparator circuit I was planning to use for a 2-cell Li battery. I'd like to cut the voltage off at around 2·2.8 V = 5.6 V. To accomplish this I have the circuit below, but just a …
What is the difference between a general comparator and a differential ...
6 I notice that the LM339 quad comparator comes in 2 different varietys: general-purpose and differential. Besides a big difference in price, what is the difference between the two? Specifically, I …
voltage - Window comparator using LM339 - invert output - Electrical ...
Oct 2, 2015 · I'm using the LM339 for an application with different voltage ranges. I am using the window comparator circuit since I want to test a specific range (4 - 8V). The circuit shown below actually ident...