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. How does it know ...
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 difficult to meet easily and cheaply by other means.
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? Will this circuit
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...
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.?
The circuit shown below is taken from this whole design. I understand the main idea. They want to measure some voltage condition and trigger something else with the comparator. R39 and C38 form a low
I don't understand the output of the window comparator. How does the window comparator switch from HIGH to LOW? There is no transistor or anything else. Only two OPAMP which outputs are put togethe...
1 I am currently in the process of designing and testing a CMOS Comparator based of a Common Gate Topology. Below is an extract of the ref circuit I am using: The authors in the paper mention "Transistors M0 and M1 are each biased with a current Iref, while arranged as a source-coupled voltage comparator.
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 want to use it in a slow-changing (as in whole minutes before crossings) single-supply (12v) circuit that needs to output very close to 0 for Vsat-.
The difference is that the comparator output is a logic output that can only be on or off, and the opamp output is analog. An open collector output is simple and flexible but relatively slow compared to other logic outputs.
