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Old 12th March 2005, 10:11 AM   #1
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Default 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.
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Old 4th April 2005, 02:41 PM   #2
bigbulb is offline bigbulb  Canada
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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.
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Old 6th April 2005, 04:19 PM   #3
Leolabs is offline Leolabs  Malaysia
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I do come across Class D amp using SG3524,try this

http://schforfree.seedhost.com
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