SMPS for Class A amp?

[dw1narso]

Good day,


I reckon, Class A amp power requirement will not as critical as class B/AB... (Is it a wrong thinking?)

Would it be acceptable to power Class A amp with SMPS power supply?

Thanks,
David

 

[mickeymoose]

Any amp can be powered with a SMPS. As with a standard supply, you need to have low a ripple and noise output. With the SMPS that stuff tends to be at higher frequenzy though (@200kHz). E

 

[Th3 uN1Qu3]

By definition class A has zero PSU ripple rejection, so it'll have to be a really good SMPS. On the other hand the power supply is going to live an easier life because unlike class AB the load is fairly constant.

 

[dw1narso]

thanks Guys...

ah yes, I only think about the load and forget about the ripple...