The circuit works from a symmetrical ±40 VDC power supply and draws a maximum current of 2.6 A. The input circuit of the amplifier is a differential amplifier built around Q4 and Q5 that employ DC feedback thus preventing any DC voltage from appearing across the speaker with the usual destructive results. Q11 acts as a current source and ensures that the input stage draws a constant current of 1 mA.
Read More Source:http://english.cxem.net/amplifier/amplifier25.php
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This entry was posted on Tuesday, January 22nd, 2008 at 10:40 am and is filed under Power Amplifier.
