I plan to use a Hypex SMPS400A400 to power a stereo AB100 integrated amplifier. My question is: has anyone added additional capactitance on the amplifier boards with this SMPS? I contacted Hypex and they just said "Our SMPS’s have sufficient capacitance for the power they can deliver. Adding extra capacitance may be possible but it is not required and not supported. Doing so will be at your own risk." Not very helpful. If you aren't familiar, the AB100 boards have places for four capacitors on the board. I have 4700uF 80V capacitors to put in those spots if it can handle it.
I figured that's what I would need to do, just try it. I'll start with one 4,700uF capacitor on each rail and see if it starts.
Hello,
On the Hypex website, they state that SMPS modules are protected against overcurrents, and that you can add capacitors to the output as long as the power supply doesn't go into hiccup mode.
The best solution for you is therefore to experiment by adding capacitors until you achieve this hiccup mode and remove some of the added capacitors to maintain a current consumption margin.
https://www.hypex.nl/technology/smps/
On the Hypex website, they state that SMPS modules are protected against overcurrents, and that you can add capacitors to the output as long as the power supply doesn't go into hiccup mode.
The best solution for you is therefore to experiment by adding capacitors until you achieve this hiccup mode and remove some of the added capacitors to maintain a current consumption margin.
https://www.hypex.nl/technology/smps/