YAPS Part Twelve Reprise - Design revisited

RE: YAPS Part Twelve Reprise - Design revisited

DAB — Fri, 22 Nov 2019 22:11:35 GMT

You might also put the design under various loads. You will find that the noise may change depending upon what you are driving.

DAB

RE: YAPS Part Twelve Reprise - Design revisited

Andrew J — Mon, 04 Nov 2019 21:47:55 GMT

I know I said I wouldn't add more details unless significantly different, but I did get a chance to test the ripple at 15V 3A:

[View:/resized-image/__size/620x372/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-51569cda-c6ed-476e-9803-b4e7615cbfb1/6371.contentimage_5F00_205204.png:620:372]

Still pretty good in my view. At this power, the LT3081 Linear Regulators run about 20c hotter than the first version. I've also traded transient response for ripple with the larger inductor so this isn't going to be a power supply that can be used for highly dynamic loads. At some point I may try it with a 10uH inductor again and see what difference it makes in terms of the trade-offs. However, for what I have, and where I've got to I'm happy to settle for this.

RE: YAPS Part Twelve Reprise - Design revisited

three-phase — Sun, 03 Nov 2019 20:39:06 GMT

Great to see an update and that you are moving forwards with the project. The results look good to me, was the power supply on its maximum load?

Kind regards.