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 …
How exactly does a comparator work? - Electrical Engineering …
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 …
comparator - How to light an LED controlled by a photo-diode ...
I need to get an LED shining brightly when a photo-diode (in the local store it is sold as such, but of course it could be something else, as suggested in the answer of WhatRoughBeast) …
What is the difference between a general comparator and a …
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? …
comparator - Comparing two variable voltages with hysteresis ...
May 21, 2018 · In other words, when the difference between the two inputs is within some threshold of 0, the comparator does not switch its output, but if the voltage difference exceed …
Difference between differential op amp and comparator
Oct 9, 2015 · A comparator returns a boolean/digital value: 0 if input A is higher than input B, 1 otherwise. A differential op-amp outputs an analogue value: the difference between the inputs, …
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 …
comparator - Input circuit for GPIO of a 3.3v tolerant …
I tried using a basic comparator circuit but here the output becomes Vcc. I need the output to become 2v-3.3v. Output State needs to be digital and not analog. EG: 0-5v should be LOW …
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.?
comparator - How do I do signal comparison without using …
Mar 4, 2015 · I want to remove the opamp IC seen in the schematic below with the least number of transistors possible in order to simplify the circuit, reduce cost and increase switching …