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Did he finally put it into production? The design has been around for years now and as far as I know was never finished.
I've had one going for ~2yrs now in my Millett Hybrid and also built one for my PPA years back which is still in service. One important thing rds, do yourself a favor and modify the pcb to allow you to bolt down the two large heat sinks. I had one snap off in transit. For one of the sinks it's pretty easy, for the other you can only get a fastener on one side but that's still better than nothing. And if you have any questions just ask, I may or may not remember the answer but I can always just look at the board that I still have.
Contributor Headphoneus Supremus: Top Mall-Fi poster. The "T" in META42. Member of the Trade
Originally Posted by TzeYang
how much capacitance will this regulator drive stably?
I don't know where the limit is, but I have one powering a PPA that I use daily, which has never had a fault. I probably put nearly 2000 uF onto its rails.
Originally Posted by n_maher
modify the pcb to allow you to bolt down the heat two large heat sinks
Consider it done.
There will be at least one more prototype run of this board, so now's the time to make requests.
__________________
"Give a man a fish and he eats for a day. Teach a man to fish and he knows what tackle to buy."
There will be at least one more prototype run of this board, so now's the time to make requests.
I believe that I mentioned this way back when I gave you my build notes but have you ruled out a Vout trimpot simliar to the STEPS design? Personally, I have no issue with the resistor setup the way that it is on the current pcb but the tweakers out there might not be happy until they can dial in exactly 24V out (or whatever).
One more thing for rds: watch out for the on board fuse location. I found that the spacing of the mounting points was a bit too close for the typical fuses. It might be easier to just use an off-board fuse if you have the same version pcb that I had. I know tangent was going to address it in future versions.
I made a small prototype run of YJPSes for early adopters, and am waiting to hear reports about how those are working. In the meantime, I'm working on an improved version. This will probably take a few months to result in boards en masse.
I wonder if the 'improved' version suggests changes to the board layout, or the schematics. To be honest, I wasn't too thrilled about the steps, but the improved regulator on the yjps looks really promising.
Tangent Young-Jung power supply
For one of the sinks it's pretty easy, for the other you can only get a fastener on one side but that's still better than nothing. And if you have any questions just ask, I may or may not remember the answer but I can always just look at the board that I still have. 
Linear Mode
