I have several old transformers that can give me the 35V I need to power a TAS5630B (for 4ohms load at about 100W), but I have a doubt about peak voltage.
When you rectify and filter an AC voltage coming from a transformer, the voltage, unloaded, is Vrms*sqrt(2). When the supply is loaded, the voltage drops to about Vrms.
Since my TAS5630B consumes about 90mA at 24V with no load, I suppose the voltage in my supply will be rather high, so I'll have high losses on idle...right? But I don't know how this will affect transient response. During peaks, the filter capacitors will discharge and the voltage will drop. And I'll be getting supply noise.
How can I regulate the output of the transformer to meet the 35V requirement off a transformer? (Let's assume, for the sake of simplicity, that the transformer is 40V. So we have overhead for voltage dropout).
I know about the reference supply for TAS5630B, but I'm unable to get the inductors. I contacted Owolff... but they didn't answer back when I told them i just needed two of each. Oops :)