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A comparator(electronic such as an LM393*) works by sampling two input pins and turns on an output when there is ether a difference or similarity of the inputs.
it depends on how the comparator is used int he design.
Say you have a reference voltage on the "inverting"( - ) pin of 5 volts.
And you have the "non-inverting" ( + ) connected to measure a voltage.
when the voltage on the Non-inverting side equals the inverting voltage. the Output
pin will turn on. Usually the Output Pin is open and will switch to ground once the comparator is activated. Remember since most all comparators have open-collector outputs, you will need the pull-up the pin to the source voltage through a resistor to see the switching action.
To make the put act differently, (instead of switching to ground when active) all you need to do is exchange(swap) the input pins.
See www.national.con for a datasheet on the LM393
What else can I help you with?
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What do comparators do?
Rhinos.
Give you something to compare a centimeter?
No, thank you, I have enough comparators.
Explain the advantages and disadvantages of sigma mechanical comparator?
advantages of sigma comparators
What are the advantages of pneumatic comparator over a mechanical comperator?
advantages and disadvantages of pneumatic comparators
How do you realize a higher magnitude comparator using lower bit comparators?
Well, honey, to realize a higher magnitude comparator using lower bit comparators, you simply cascade multiple stages of comparators together. Each stage compares a subset of bits, and the outputs are then fed into the next stage until you cover all the bits you need. It's like building a ladder one step at a time to reach the top - ain't rocket science, just good ol' fashioned engineering.
What are application of zener diode?
Applications of Zener diode: a.)It Regulators. b.)It Controlled Comparators. c.)It Limiters. d.)It is Part in Power Supplies.
How do comparators find out which input is bigger?
A comparator with two inputs A and B subtracts A from B and inspects the sign of the result: Y(A, B) := sign(A-B)
How do you implement 8-bit comparator using two 4-bit comparators?
set the < , =, > as "010" and connect the lower bit that you want to compare to the first comparators and connects its output to the input of second comparator like this; connect the P<Q to < , and P=Q to = and P>Q = > (cascading input is checked for when P and Q are equal; the input from cascading input is set to the output "010"
What if same inputs are given to the comparator?
If the same inputs are given to a comparator, the output will typically indicate that the inputs are equal. For digital comparators, this means the output signal will reflect a logical state that signifies equality, while for analog comparators, the output will show no difference between the input values. This behavior is essential for applications requiring precise comparisons, such as sorting or decision-making processes.
Which are the Devices using elastic members for amplifying linear movement in mechanical comparators that do not require bearings?
I do declare you might be referring to orthodontic work by teeth technicians!!
Why the internal resistance should be high in operational amplifiers?
High input impedance implements the operation of the external feedback circuitry (e.g. diff. amplifiers vs. comparators).
What are best used as a basic comparator?
Basic comparators are best used in applications that require simple on-off control based on a specific reference voltage. They are commonly utilized in systems for level detection, zero-crossing detection, and pulse width modulation. Additionally, comparators are effective in signal conditioning and in creating window detectors for monitoring input signals against predefined thresholds. Their simplicity and speed make them ideal for these tasks.
