Join Date: Jul 2002
Location: Denmark - Jutland
Originally Posted by eem2am
I would have thought that if you are supplying a Class D amplifier with an SMPS.....then it would be far better to make the Class D amplifier a Full Bridge Class D amplifier?
..because it makes the supplying SMPS much simpler in that it only has a single rail output.
Also, unless the audio power is very very low , a full-bridge class D amplifier is cheaper than a half-bridge class D amplifier.....since with a full-bridge class D, your using the full rail voltage....not just half of it.?
Hi, my 2 cents....
Half bridge amp is easier, but you have to deal with supply pumping > bigger SMPS
Full bridge amp is more tricky but only a single rail is needed and no supply pumping > simpler SMPS
Neither are easy to do as DIY as both requires detailed knowlede regarding the custom designed magnetics required in both cases.
For most DIY projects I would recommend to only design the amp, and not worrie about the SMPS as this involves working with lethal!! voltages.
Stay on the secondary side of a standard SMPS module - they can be sourced from different companies, or simply use a standard 50/60Hz transformer and rectifier.... this works well for most DIY projects!
I wish you the best of luck with your projects.