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. …
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? …
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 …
Hysteresis on inverting terminal for comparator circuits?
Jan 9, 2024 · If you examine 98% of circuits online that include hysteresis for a comparator, they always implement the hysteresis on the non-inverting input, like so: This is easy enough to calculate. …
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 …
How to deal with strobe and balance pins of this comparator for single ...
I want to use this LM311 comparator with a single supply. But these are pins called balance and strobe which confuses me. What are these for? In a forum I read someone suggests pin 5 and pin 6 sho...
How can I make an ideal comparator in LTspice?
Oct 1, 2017 · For fast simulations I sometimes need an ideal comparator. I guess it is not a built-in component. How can it be implemented by ideal sources or VCVS ect.?
transistors - LM393 window comparator for driving an LED - Electrical ...
Nov 2, 2021 · I have a question about LM393 when using it as a window comparator. I know it's an open collector. The output is often paired with a pull-up resistor and an NPN. But there are circuits that use …
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 …
operational amplifier - LM393 comparator not pulling down - Electrical ...
Aug 13, 2025 · A voltage divider is fixing the non-inverting input at 1.65V. Even at 2.5V at the inverting input of the open-collector LM393 comparator, it's not pulling down to 0V (actually pulling the voltage to