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Old 15th November 2009, 07:42 PM   #1
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Default PSU for TA2020 mk3

Guys,
I recently ordered one of Arjen Helder's ta2020 mk3 boards of ebay.

As this will be my first project, it's a fully populated board, I just need to arrange a PSU and casing.

Does anybody have experience with a good solution to provide the amp with 9-15V? I'm looking for the best value for money solution (good quality, not too expensive).

Thanks!
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Old 15th November 2009, 08:09 PM   #2
Aad is offline Aad  Netherlands
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Hi studiostevus, cheapest way (and perfect working) is a switching power supply. You can order them from Arjen or Sure Electronics on Ebay. You can also find them in the Netherlands. I ordered mine from DIL in Rotterdam.

Aad

Last edited by Aad; 15th November 2009 at 08:14 PM.
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Old 16th November 2009, 01:04 PM   #3
hoka is offline hoka  Netherlands
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kijk hier eens:

Dick Best Electronicaonderdelen online - Voeding 12V 3A (Powered by CubeCart)
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Old 16th November 2009, 02:03 PM   #4
sled108 is offline sled108  United States
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I have a TA2020 from Arjen and use a Samsung 14v 4A Supply for a Monitor. It works Great. The only trick is that you have to change the Tip because it comes with a Center Pin.
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Old 16th November 2009, 02:28 PM   #5
Aad is offline Aad  Netherlands
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mmm 5,95 thats a bargain!
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Old 16th November 2009, 03:25 PM   #6
hoka is offline hoka  Netherlands
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Dick is the Best!
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Old 16th November 2009, 03:27 PM   #7
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I was actually planning to use a built-in psu, not sure if using an external one has any impacts...

by the way, Arjen's datasheet tells me it needs 3.5A peak
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Old 16th November 2009, 03:51 PM   #8
hoka is offline hoka  Netherlands
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indeed peak, the psu that is rated at 3 amps continuous is more than enough, in normal use this little amp will not use more than 1 ampere
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Old 16th November 2009, 05:24 PM   #9
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Quote:
Originally Posted by sled108 View Post
I have a TA2020 from Arjen and use a Samsung 14v 4A Supply for a Monitor. It works Great. The only trick is that you have to change the Tip because it comes with a Center Pin.
Please do not be surprised if the TA2020 goes up in smoke one day. 14 V is too close to the absolute max. of 14,6 V. TA2020 is sensitive to overvoltage and the power supply probably gives more than 14 V too. A dangerous combination for your speakers.
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Old 17th November 2009, 06:46 AM   #10
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By the way, is there anyone who has some pics of a nicely implemented Arjen Helder amp?

Looking for nice casing, but since the board is 5cm high, Eurocard cases are out...
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