A 12V transformer is on the edge for a 16V chip. A small fluctuation in the mains voltage could see the amp toasted.
Safer to run the chip down at 12V, any decent 12V wallwart, monitor power supply or battery charger will do the job. Regulation is not really advised for this level of voltage.
I've used the switching supplies from Meanwell to power a few low-end Class D amps and they work well, no additional noise or shenanigans. The quality and manufacture of the supply is more important than its classification. The 12V supplies do track up to 13.5V or so using the variable resistor, a 75 or 100W unit like the LRS12-75 (or 100) will do fine and allow your amp to hit almost maximum output.
Safer to run the chip down at 12V, any decent 12V wallwart, monitor power supply or battery charger will do the job. Regulation is not really advised for this level of voltage.
I've used the switching supplies from Meanwell to power a few low-end Class D amps and they work well, no additional noise or shenanigans. The quality and manufacture of the supply is more important than its classification. The 12V supplies do track up to 13.5V or so using the variable resistor, a 75 or 100W unit like the LRS12-75 (or 100) will do fine and allow your amp to hit almost maximum output.
True, but he also says *transformer* so just in case we should ask for clarification or rechecking.
The amp I will use takes up to 14,6VDC...
So I hope to be on the good side 🙂
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The amp I will use takes up to 14,6VDC...
So I hope to be on the good side 🙂
Looks good! This should do it....
Hello, I just bought a 230VAC/15VAC transformator and just cant figure out how get the 15V down to 13V...
Its going through a rectifier and some 20000uF to feed a small Class D amp...
So, I can only test it without load... 🙂 I dont want to hook up the amp before I know what will feed in to the amp...
Any suggestions?
One can reduce the voltage supply on the primary side below 220/230V using a variable voltage regulator to get to the desired voltage on secondary side. A variac would work too but is cumbersome. There are many inexpensive versions available on EBay.
Regards,