Hello,
I have designed a class D amplifier board based on a TAS3251 chip (TPA3251 + DAC+ DSP in the same chip).
I now need to buy the power supply. My initial intention is to go to a Meanwell LRS-350-36 (MEAN WELL LRS-350-36 Switching Power Supply SMPS 36V 9.7A 350W - Audiophonics). I have read several good recommendations for those.
However, I'm a bit bothered by the fact that those power supplies are not optimized for Audio. They can deliver a steady 350W, while I will normally have much lower needs, but need a to be able to cope with short peaks. TI has some suitable reference designs with 200W nominal and 600W peak (from memory).
I understand that DIY is not easy in that area because of specific transformers and coils (and voltage). Drmord proposed an interesting desgin, but from the Google translate of the article (Russian), making the transformer looks like art :-(
CONNEX modules are more significantly more expensive that Meanwell. Hypex even much more.
At the bottopm end of the cost spectrum, some cheap modules like Nouveau Module d'alimentation 36V 5A AC DC Module d'alimentation a decoupage carte ca 100V 240V a DC 36V alimentation a decoupage|Alimentation a decoupage| - AliExpress
What are they worth ?
Other interesting products to consider ?
And to increase my knowledge: what should I look at for those type of power supplies. What are the interesting features / performances ? What to stay away from ?
Help welcomed,
JMF
I have designed a class D amplifier board based on a TAS3251 chip (TPA3251 + DAC+ DSP in the same chip).
I now need to buy the power supply. My initial intention is to go to a Meanwell LRS-350-36 (MEAN WELL LRS-350-36 Switching Power Supply SMPS 36V 9.7A 350W - Audiophonics). I have read several good recommendations for those.
However, I'm a bit bothered by the fact that those power supplies are not optimized for Audio. They can deliver a steady 350W, while I will normally have much lower needs, but need a to be able to cope with short peaks. TI has some suitable reference designs with 200W nominal and 600W peak (from memory).
I understand that DIY is not easy in that area because of specific transformers and coils (and voltage). Drmord proposed an interesting desgin, but from the Google translate of the article (Russian), making the transformer looks like art :-(
CONNEX modules are more significantly more expensive that Meanwell. Hypex even much more.
At the bottopm end of the cost spectrum, some cheap modules like Nouveau Module d'alimentation 36V 5A AC DC Module d'alimentation a decoupage carte ca 100V 240V a DC 36V alimentation a decoupage|Alimentation a decoupage| - AliExpress
What are they worth ?
Other interesting products to consider ?
And to increase my knowledge: what should I look at for those type of power supplies. What are the interesting features / performances ? What to stay away from ?
Help welcomed,
JMF