I'm really not sure what you are after with your question. There is no problem with time response.. please let me know where/if you see one. There are several benefits, so I guess the answer is yes... totally worth it. Can you be more specific with your question?
I researched the external searches you suggested and re-read your description above. It appears the circuit is only effective for low peak current demands. When using a smaller VA transformer, there will be no way to keep the supply rails from sagging as would "real " large capacitors. One reference suggested that the harmonic structure of the ripple would be "improved". Ripple is small and a good power amp should have high PSRR, so I fail to see the relevance of that claim.
"Effective" meaning what exactly? The circuit works as intended and happens to fill a couple of needs that I have. I have already explained the benefits and the applications for the circuit in my earlier posts.
You are correct. This is NOT a regulated supply, and the rails will sag but the ripple will remain low. That is actually the desired/intended effect.
Ripple can be an issue for class-A and some class-D amplifiers but is not typically a problem for a class-AB amp due to its high PSRR.
Update: unfortunately due to severe procrastination I still have not built one of these!
I now have a couple of amp projects lined up and I need one of these so I'm hoping to finally get my act together and at least solder the parts to the darn pcb.
I now have a couple of amp projects lined up and I need one of these so I'm hoping to finally get my act together and at least solder the parts to the darn pcb.
Actually, I built two! I still have not soldered in the output devices. I need to dig up a heat sink and some standoffs. Then I will try to build a supply and check out how they function. Pic attached.
The CAD program I used to design the PCBs is called "Target3001". Its free for simple circuits like this (the free version has a limit on the number of components or something like that). Its pretty easy to use and has a reasonable autorouter that you can use when you are just starting out your layout. I did all the circuit simulating in TINA, however.
The CAD program I used to design the PCBs is called "Target3001". Its free for simple circuits like this (the free version has a limit on the number of components or something like that). Its pretty easy to use and has a reasonable autorouter that you can use when you are just starting out your layout. I did all the circuit simulating in TINA, however.
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