brain-dead
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Hi Everyone,
I have made a clapper peak detector to turn on a relay when it hears a clap. I have an LM324 op amp and the peak detector is connected to the output of one of the amps as follows:
My question is, do I not need a current limiting resistor in between the output of the op amp and the diode? If no then why not? I have seen many circuits like this and none of them seem to have a current limiting resistor. My concern is that if a large capacitor is used, will this not cause a large unlimited current draw as it's charging, thus damaging the op amp after a while? I have built the circuit and it works great I am just abit confused by it all.
Thanks for help in advance
:smile:
I have made a clapper peak detector to turn on a relay when it hears a clap. I have an LM324 op amp and the peak detector is connected to the output of one of the amps as follows:
My question is, do I not need a current limiting resistor in between the output of the op amp and the diode? If no then why not? I have seen many circuits like this and none of them seem to have a current limiting resistor. My concern is that if a large capacitor is used, will this not cause a large unlimited current draw as it's charging, thus damaging the op amp after a while? I have built the circuit and it works great I am just abit confused by it all.
Thanks for help in advance
:smile:
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