Full Bridge Class D 1200 watt Audio Amplifier
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 Class D Switching Power Amplifiers and Power D/A conversion

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 31st March 2017, 07:09 AM #1 sm11960708   diyAudio Member   Join Date: Aug 2016 Location: Dhaka Full Bridge Class D 1200 watt Audio Amplifier Please anybody check this circuit diagram.Is it ok or not ? Last edited by sm11960708; 1st April 2017 at 11:36 AM.
 2nd January 2018, 08:19 AM #2 97albi   diyAudio Member   Join Date: Dec 2016 1200 W? How can you get 1200 W if you supply it with 55 V? If you do some calculations: (55 V * 55 V) / 4 Ohm = about 750 W peak, in the best case without considering losses. 1200 W RMS can be obtained by supplying about 70 V plus and minus, so 140 V peak to peak. Let me know
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Join Date: Jan 2010
Quote:
 Originally Posted by 97albi How can you get 1200 W if you supply it with 55 V? If you do some calculations: (55 V * 55 V) / 4 Ohm = about 750 W peak, in the best case without considering losses. 1200 W RMS can be obtained by supplying about 70 V plus and minus, so 140 V peak to peak. Let me know
You should do your calc with +-55V supplies

 2nd January 2018, 12:29 PM #4 globalplayer   diyAudio Member     Join Date: Oct 2014 Location: =) What type of output fets? __________________ ◢◣◢◣◢◣◢◣◢◣
97albi
diyAudio Member

Join Date: Dec 2016
Quote:
 Originally Posted by voltwide You should do your calc with +-55V supplies
Yup, I'm sorry hahaha

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