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will the properties of ic 74ls373


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If you have a 500 ma current limit in a circuit, you cannot use 1.3A. A resistor can limit current. You just calculate Voltage / Resistance to get the current in Amps. Did you mean the buzzer has a 500 ma current limit? The current for the buzzer is going through T1. Where in the circuit are you concerned about the 500 ma current limit?

MP

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Your circuit determines how much curent draw you will have. Not the power adapter. The rating on the power adapter tells you the maximum value that is possible. If I have understood your post correctly, you have no problem. If the power adapter is capable of more than the rating of the transformer, this is ok. You need no limitations in such a scenario. The circuit will only use what it needs. If you want to calculate this, you go through the spec sheets of all the parts, list their maximum current requirements, and add up all the branches of your circuit.

MP

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