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Old 11th December 2004, 11:07 PM   #1
nohup is offline nohup  Netherlands
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Location: Drenthe
Default My first attempt on a Class-D amp

Hi, i'm new to class-D amps AND to this forum

After reading some about it on this forum I tried to do build a simple amp using the tl494 (mostly used for switching psu's) and fet driver IR2110. I didn't know that Vss should be between -5 and +5v, so i'm going to order a new 2110.. and I wrote a whole new schamtic 'cause i didn't like using the 494 anyway

The schematic I wrote is at: http://www.plasser.nl/amp.jpg
(it was too big to attach)

I wondering if it would be worth building it... can anyone tell me if i should change anything?

Thanks in advange!

Grts, Tom
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Old 13th December 2004, 09:53 AM   #2
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Arrow Hi Tom

Tom You have gathered much Information from Crest LT schematic as well as from Sergio's Class-D Amplifier Prototype.


You can simpliFy it even further , You can use :
Single Supply operation,
H-bridge in BD mode.

Regards,
ampman
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Old 13th December 2004, 10:49 PM   #3
nohup is offline nohup  Netherlands
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Default Re: Hi Tom

Quote:
Originally posted by amp_man_1
[B]Tom You have gathered much Information from Crest LT schematic as well as from Sergio's Class-D Amplifier Prototype.
Yeah, I did look at the Crest LT schematic, although I was already planning to use the LM119/219/319 and IR2110. I kinda stole the level shifter to bias the logic from the other stuff

Quote:
[B]You can simpliFy it even further , You can use :
Single Supply operation,
H-bridge in BD mode.
Yes, I could make a H-bridge, but that would require 2 gate drivers, and after all it's just an experiment

Greetings, Tom
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