![]() In this output of LM324 is internally connected to some resistance and it has some arrangement inside the IC, which makes a lot of difference to other comparators. ![]() If the non-inverting voltage is greater than the inverting voltage then the output will be high.Here the ‘+ ‘sign indicates non-inverting terminal and ‘-‘ sign indicates the inverting terminal. Because we already know that when “+ > – = 1”. When the power is applied to the non-inverting terminal which is less than the inverting voltage of the op-amp then the output becomes zero which means there is no current flow.The two inputs like input A and input B are from the output of the line sensor circuit and the two resistors are used to set the voltage reference to produce the best digital output. The following circuit shows the Voltage comparator, the components required for this circuit is the LM324 comparator and the two resistors with a value of 10K ohms. Non-inverting input of the fourth comparator Non-inverting input of the third comparator Non-inverting input of the second comparator Non-inverting input of the first comparator It consists of 14 pins and the function of each pin is described below. ![]() ![]() The following diagram shows the pin configuration of the LM324 comparator circuit. LM324 Comparator Pin Diagram of LM324 Comparator
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