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How does an LM393 comparator work?
LM393 IC-based Night Light Circuit. When the circuit absorbs the darkness then the output device will be turned off. This circuit works on a voltage comparator principle. If the inverting terminal of the IC voltage is high than the non-inverting terminal, then the output device activates.
How do you connect a voltage comparator?
To create a voltage comparator that creates a positive voltage output if the input voltage is less than a reference voltage, apply the reference voltage to the inverting (V–) input, and the input voltage is applied to the noninverting (V+) input.
What is a LM393 comparator?
The LM393 series are dual independent precision voltage comparators capable of single or split supply operation. These devices are designed to permit a common mode range−to−ground level with single supply operation.
What are the applications of voltage comparator?
The comparators find in many electronic applications that may be used to drive logic circuits.
- Comparator Symbol.
- Comparison of Op-amp and Comparator Output Circuitry.
- Noninverting Comparator Circuit.
- Inverting Comparator Circuit.
- The Humidity Monitoring System.
- System Implementation of the Heartrate Monitor chip.
What kind of comparator is the LM393?
The LM393 is a dual differential comparator; this means that it accepts 2 inputs for comparison. It compares these voltage inputs and determines which is the larger value.
What’s the common mode voltage range of LM393?
In this picture below, I am referring to this circuit, please tell me what ‘s wrong in this circuit, when I am taking triangle wave from 555 timer ad providing into the comparator and another signal providing from the generator. LM393 input common mode voltage range is 0 V to Vcc – 1.5 V. In the comments you say:-
Where is the GND on the LM393 chip?
GND is where the ground wire of the voltage source gets connected to. These 2 terminals complete the power path for the LM393 chip and gives it the power it needs to function.
Why do we need a comparator in a circuit?
Based on this, electronic decisions can be made based on which input is greater and which is smaller. Thus, a comparator is very useful in circuits where we measure levels and want our circuit to act a certain way based on whether the level of an input is greater or smaller than a certain threshold.