2x bridged TA2022 180w x 2ch - diyAudio
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Old 28th August 2012, 01:55 AM   #1
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Default 2x bridged TA2022 180w x 2ch

Ordered the board fully assemble from a seller on ebay. It recommends using a AC22v-0-AC22v output transformer with more than 350va. I have a 22v + 22v 160va toroid transformer. My question is will my 160va TT power this amp board? At least until I get bigger transformer of course. Would there be any resulting effect on the 160va transformer itself?

I assume the result will be the chip amps not producing as much power than if it had sufficient VA from the transformer, also I'd expect a 160va transformer to run hot in this application being fully taxed at 50% volume. Is that an accurate assumption?
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Old 28th August 2012, 09:50 AM   #2
AndrewT is offline AndrewT  Scotland
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Location: Scottish Borders
The amp will run just fine.

BTW,
you have no hope of getting 180+180W from that chip, even if you used a 500VA transformer
It's specified @ 90W into 4r0 with +-31Vdc and 60W into 8r0 from +-35Vdc
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regards Andrew T.

Last edited by AndrewT; 28th August 2012 at 10:05 AM.
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Old 28th August 2012, 12:15 PM   #3
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This is a two chip amp. One chip bridged per channel. 180w would maybe be reach at the maximum voltage of 36v, but I don't plan on pushing it that far. 22v should put it over 100w per chip-bridged and that will be plenty for now.

Thanks for the reply, I'm more confident the 160va transformer I have will work fine for now. I should at the least get me though testing.
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Old 30th August 2012, 10:46 AM   #4
Atjan is offline Atjan  South Africa
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I've got a Topping TP60 which uses the TA2022 chip. The unit uses 2 transformers and weighs about 5kg. I know this is pretty rough, but based on the typical weight of transformers, I'm guessing their VA rating is around 225VA. The manufacturer claims 50W/channel into 8 Ohms and 80W into 4 Ohm.

Topping TP60 Tripath TA2022 50WPC (80WPC 4 Ohm) Amplifier 310-326
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