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chrisla said:Hello,
I completed this circuit with 6 op amps LM741. Now I want to connect any high and low level alarm circuit. I have found and tried some solutions but I didn't get it to work. Can you give me some advice how to do it?
nevere said:berkeman I'm curious what will make the circuit unreliable?
A high/low level alarm circuit is designed to monitor and detect changes in the input voltage level. It uses a series of LM741 op amps to compare the input voltage with a set threshold voltage. If the input voltage exceeds the threshold, the high alarm is triggered and if it falls below the threshold, the low alarm is triggered.
The LM741 op amp is a type of operational amplifier that acts as a comparator in the high/low level alarm circuit. It compares the input voltage with a reference voltage and outputs a high or low signal depending on the result of the comparison.
The circuit requires a total of 6 LM741 op amps, with 3 op amps used for the high alarm and 3 for the low alarm. Each op amp is configured in a voltage comparator circuit to detect changes in the input voltage level.
Yes, the threshold voltage can be adjusted by changing the values of the resistors in the circuit. The threshold voltage is set at the non-inverting input of the LM741 op amp and can be adjusted to suit the specific needs of the circuit.
The high/low level alarm circuit can be connected to any type of alarm that requires a high or low signal to be triggered. This can include buzzers, LEDs, or other types of audible or visual alarms. The type of alarm used will depend on the specific application of the circuit.