Hi,
For an audio amplifier that needs lets say 10A average (hence 14.1A peak), can it be run on a 10A SMPS without going into protection during those peaks?
Thanks and Regards,
WonderfulAudio
For an audio amplifier that needs lets say 10A average (hence 14.1A peak), can it be run on a 10A SMPS without going into protection during those peaks?
Thanks and Regards,
WonderfulAudio
I always add some headroom on power supplies.
I try not to run anything on its limits be it a power amp or its supply.
I try not to run anything on its limits be it a power amp or its supply.
Load type plays a large role - just my own limited understanding:
a) SMPS don't like capacitive or low impedance loads - often tripping protection.
b) inrush from capacitor banks without providing some charge management is likely to end up at point (a).
I'm just a beginner so worth getting a more experienced perspective.
I've looked at SMPS for my heater elements but yet to model/try it with a large filter cap.
Given you need a large capacitor to smooth out the ±4A needed (assuming large voltage), then I suspect you're back to point (a) and also need additional design to limit the current.
With an unknown SMPS design, you also don't know how the SMPS would react maxed out at 10A (ie go pop, catch fire or simply sulk). I'd not try it.
a) SMPS don't like capacitive or low impedance loads - often tripping protection.
b) inrush from capacitor banks without providing some charge management is likely to end up at point (a).
I'm just a beginner so worth getting a more experienced perspective.
I've looked at SMPS for my heater elements but yet to model/try it with a large filter cap.
Given you need a large capacitor to smooth out the ±4A needed (assuming large voltage), then I suspect you're back to point (a) and also need additional design to limit the current.
With an unknown SMPS design, you also don't know how the SMPS would react maxed out at 10A (ie go pop, catch fire or simply sulk). I'd not try it.
Last edited: