What current? and what is the residual noise specification?
And what topology? flyback i assume?
A SMPS for feeding a class B amplifier is no small feat. Class A is a lot easier.
TME has some relatively cheap cores for flybacks in its assortment, 24V @ 5A you could use four of those to get the required voltage out. I know because i want to use these for GM70 heaters.
TI-ETD39-1131 FERYSTER
cheers.
And what topology? flyback i assume?
A SMPS for feeding a class B amplifier is no small feat. Class A is a lot easier.
TME has some relatively cheap cores for flybacks in its assortment, 24V @ 5A you could use four of those to get the required voltage out. I know because i want to use these for GM70 heaters.
TI-ETD39-1131 FERYSTER
cheers.
It´s for a Class D amp and noise?As low as possilbe I guess (You´ll notise that I am a newbie on this)
Is it harder to make for the class AB because of the no regulation?
5 amp/channel at least.
Is it harder to make for the class AB because of the no regulation?
5 amp/channel at least.
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Class AB would be harder because of the spikes in current demand from the amplifier.
I would look at some HYPEX class D modules and normal toroidal transformers. for the power supply, this is easier to understand and to build. As SMPS has its own peculiarities.
The cores alone for a split 40V supply are about €40 at that price and the effort that goes into getting the supply working correctly toroidal transformers arent that expensive. Furthermore you wont have a board with 230VAC on one end.
I would look at some HYPEX class D modules and normal toroidal transformers. for the power supply, this is easier to understand and to build. As SMPS has its own peculiarities.
The cores alone for a split 40V supply are about €40 at that price and the effort that goes into getting the supply working correctly toroidal transformers arent that expensive. Furthermore you wont have a board with 230VAC on one end.