Class B transformer more expensive, but only one Vds/ Vce volt drop. Bridge, transformer cheaper, two transistor volt drops and four power devices plus added complexity. I would get quotes for the different sort of transformers and see what the price difference is, and then you can work out will this pay for the extra semiconductors.
Frank
you cannot.
you would have several problems.
just check magnetic circuits' equations.
since the L will reduced drastically, you will definitely have short circuit problem. Furthermore the ransformer will not work near the knee of B-H curve etc
The equations use symbols, and I unfortunately do not know how to type symbols here.
please refer to following books:
Dynamic Simulation of Electrical Machinery by: Chee-mun Ong pages:88-92.
Electric Machines Analysis and design by: Jim Cathey pages:142-150.
A non mathematical approach is that the limited primary inductance is a loss where current flows through it but does not get to the output. So suppose your working frequency is F HZ, then the primary inductance should have an impedance say, at least 10 times the reflected load impedance at F HZ. This is why 50 HZ transformers are wound with many turns of wire on a laminated iron core and high frequency transformers are wound with a much lower number of turns on a ferrite transformer. Radio frequency transformers may not have any cores at all.
Frank
it has about 60% of copper conductivity. so, higher resistance, so higher temperature. you may need to increase diameter of your wire.There is a aluminum oxide , I think it is not good heat transfer that means the heat can be imprison in your windings. I am not sure about second sentence.