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Old 1st November 2012, 01:13 PM   #11
diyAudio Member
Join Date: Sep 2012
Location: chennai
Default thanks sir,

Originally Posted by airwavesystem View Post
transformer is good for audio,best THD but too heavy
smps are smaller and Popular in Consumer products but have more niose and Handle with care!
how to make a auto on/off when audio signal detected.
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Old 1st November 2012, 03:03 PM   #12
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Join Date: Oct 2012
Originally Posted by kirubakaran View Post
how to make a auto on/off when audio signal detected.
Maybe you can add a detect circuit(AC-DC or use OP-AMP) before the amplifier input,but this will be influence the quality of audio signal that you must be careful~~~
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