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Class D Switching Power Amplifiers and Power D/A conversion

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Old 20th September 2012, 07:58 PM   #41
Eva is offline Eva  Spain
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Electrician thinking
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Old 8th November 2012, 11:05 AM   #42
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Crazy Tekko,

whatz the update?
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Old 13th January 2013, 01:22 PM   #43
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The monster has awoken yet again: http://i.imgur.com/heCHd.jpg

I neatened it up alittle to, its now a inverting setup with feedback from the output.
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Old 13th January 2013, 04:36 PM   #44
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And now its happened, the amp was powered up with 2x85VDC from a 1.5kVA transformer, the load was two 4ohm speakers in series for 8 ohms.

A video of the test, yes i was very nervous, this is by far the highest power amplifier i have ever powered up: Big Class D Amplifier - YouTube

I was literally shaking after the test.
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Old 13th January 2013, 09:40 PM   #45
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Off the point, the song in your video is by Chakra, one of my favourite trance tracks.

Chakra - Home (Original) - YouTube

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Old 14th January 2013, 05:22 PM   #46
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The song in the video was from the "Trance 2000 2nd edition" CD.

I also did a quick power test, into a 2 ohm load, the amp peaked 1800 watts (60V peak into 2 ohms) with the 30 ohm softstart resistor still in series with the transformer primary, it was nice and hot after a few minutes while the amp heatsink was stone cold.
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Old 14th January 2013, 06:40 PM   #47
a.wayne is offline a.wayne  United States
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Quote:
Originally Posted by Tekko View Post
And now its happened, the amp was powered up with 2x85VDC from a 1.5kVA transformer, the load was two 4ohm speakers in series for 8 ohms.

A video of the test, yes i was very nervous, this is by far the highest power amplifier i have ever powered up: Big Class D Amplifier - YouTube

I was literally shaking after the test.
It works ....

Love the way you did the test Tekko, almost impossible for anyone to see the amplifier parts with that mix, i do believe you were nervous ....


Good one , thats a lot of power ....
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Old 14th January 2013, 07:16 PM   #48
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I did post a pic of the amp.
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Old 20th January 2013, 07:50 AM   #49
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The boxing of this amp has begun:

http://i.imgur.com/zFiY93k.jpg
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Old 20th January 2013, 04:43 PM   #50
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Enjoy your beast!
The power is strong with this one.
Let's hope hope that it doesn't turn dark.
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