Hello all....I am wanting to learn as much as possible about SMPS circuit design and anything new about audio amplifier design that I can.
I want to design and build a Pure Class A amplifier for car audio using an smps power supply. Why class A if AB is more efficient and sounds just as good? The novely of it, for fun etc...
Since class A amplification will create so much heat My goals will be 100w RMS x 2 channels(stereo) at 4 ohms.
Where to start?
Should I use an opamp for the pre-amp or design a discreet pre-amplifier? I heard Discreet component class A circuits can be hard to design what do you all think?
On the SMPS side, I figure I will use the same topology that most car audio amps use, a push-pull, or can I use other topologies? This is where I will learn and see what I can do. What switching frequency would be good to use(how high can I go), any ideas on toroidal cores for the filtering and the transformer, wire guage, types of mosfets to use for the smps, and for the audio side and how many I would need for my target?
I want to design and build a Pure Class A amplifier for car audio using an smps power supply. Why class A if AB is more efficient and sounds just as good? The novely of it, for fun etc...
Since class A amplification will create so much heat My goals will be 100w RMS x 2 channels(stereo) at 4 ohms.
Where to start?
Should I use an opamp for the pre-amp or design a discreet pre-amplifier? I heard Discreet component class A circuits can be hard to design what do you all think?
On the SMPS side, I figure I will use the same topology that most car audio amps use, a push-pull, or can I use other topologies? This is where I will learn and see what I can do. What switching frequency would be good to use(how high can I go), any ideas on toroidal cores for the filtering and the transformer, wire guage, types of mosfets to use for the smps, and for the audio side and how many I would need for my target?