Query about grounding in my project abt amplifier and which IC instead of LM383

achin_maheshwari

Aug 25, 2005
4
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Aug 25, 2005
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frenz i am trying to make an amplifier
by using IC LM383 .in the circuit i have to ground the terminals .
I want to ask tht if i make it common to neutral wire of dc supply without grounding
i also want to ask on what software i can simulate my project ( including the IC LM383).

 
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audioguru2

Apr 6, 2004
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Apr 6, 2004
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12,026
Hi Achin,
Welcome to our forum. ;D
The LM383 is old and was discontinued by its inventer, National Semi long ago. They don't have a sim file for it and I doubt that you'll find one.
Select a newer amp IC.

Are you asking about connecting the ground connection of your amp and its power supply to earth? It isn't necessary. The ground connections of the amp connect to the shield of its input cable and to the negative of the supply. If it isn't used with another as a bridged amplifier, then one of the speaker wires also connects to ground.

 
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