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Old 18th June 2012, 10:10 AM   #1
joeoz is offline joeoz  Australia
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Default Power for TA2022 amplifier board?

Hi,

I have this TA2022 amplifier board:

YJ TA2022 90W+90W Volume contol amplifier board new | eBay

According to the description, the board requires AC 22V-0-22V 5A power, so would it be possible to use transformers that are used for halogen lights? I have a bunch of these transformers (they are AC 240V in -> 12V out, and 50W output).

If it's possible, how would I connect them together? I was wondering if I could use a pair of them to get 24V, and another pair to get the other 24V. Would that be too much for the TA2022?

I'm still a newbie at this, so any help is greatly appreciated.

Thanks,
Joe
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Old 18th June 2012, 11:48 AM   #2
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Not unless they're completely ground separated which is highly unlikely.
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Old 18th June 2012, 12:02 PM   #3
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I'm no expert on these things but I would say you are wasting your time with those transformers when all you need is a single 225VA toroidal transformer with 22+22V output. Expensive I know but worth it in the long run.

That's my take on it anyway.

Cheers,
Steve
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Old 18th June 2012, 12:51 PM   #4
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They also tend to have a very low switching frequency and will inject tons of noise into the amp.
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Old 18th June 2012, 08:08 PM   #5
joeoz is offline joeoz  Australia
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Thanks for your replies.

Other than the toroidal transformer, are there any other options fro powering this board?

Thanks!
Joe
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