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-   -   Looking for subwoofer classD using TL494 (http://www.diyaudio.com/forums/class-d/53324-looking-subwoofer-classd-using-tl494.html)

lumanauw 12th March 2005 09:11 AM

Looking for subwoofer classD using TL494
 
Does anyone has built a simple classD (subwoofer amp) design using TL494 or SG3524 (PWM driver)?
IVX uses TL494 in the SMPS section, what I look is TL494 in audio section.

bigbulb 4th April 2005 01:41 PM

Hi,
TL494 will not be stable when operate at frequency higher than 180KHz, the build in comparator (error amp) can't give you high slew rate, and produce more distortion.

Leolabs 6th April 2005 03:19 PM

I do come across Class D amp using SG3524,try this

http://schforfree.seedhost.com


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