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I'm interested to see your course, Hopefully it will help me to better understand what I still need to resolve in my design.
I hope to try and spend a bit more time on my design over the Christmas break, I'm hoping to at least have part of the design working in spice soon.
I've sent you a PM...
Do you have any further information that explains what each cell in you spreadsheet is for, the formulas look like some I have seen before but I'm finding it difficult to determine what each cell is calculating as not all the labels are familiar.
Ken
Ok, I've converted the two Excel files from within the above attached zip file to PDF's for easier viewing, if you wish to see how the calculations where done you will have to download the zip file as this forum doesn't allow xlsx files to be attached.
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Thanks for the...
The contents of the attached zip file is a Transformer Report generated using the online PowerEsim Magnetic Builder app and also a second file that contains the calculations I put together based on the "Transformer and Inductor Design Handbook 3rd edition" that I have been reading along with...
In the above schematic R22 is not installed, but if it was going to be used I've seen R20 with a value of 12K and R22 with a value 16K, these would need to be confirmed. My understanding is that you wish to produce about 2.5V across R21.
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@treez, Thanks for your feedback, as...
The attached image is a circuit that I'm looking to use to base my design for my main power stage on, this design is for a 150W 2 switch forward, so it's very close to my current requirements, as you can see the feedback circuit has the 12V output connected to the fast lane and both the 5V and...
Thank you for your feedback on my idea for the feedback loop.
I had based my idea for the feedback circuit on some others that I have seen, some show the fast lane powered by a 12V output and the slow lane using a resistor divider between the 5V and 3.3V outputs, I've also seen the fast lane...
Hi,
I've been working on designing a two switch forward converter with PFC, the design is still in the very early stages and I've been reading up on SMPS design.
So far I have found that a number of the different books out there provide formulas that are slightly different to each other and...
Thank you both for your feedback, I will consider all your suggestions as I work through the design. The design is by no means completed, it is still in the early stages of gathering information so as to try and make the best choices based on the needs of the project and trying to keep it...
Hi,
I'm looking at designing an Active-Clamp Forward SMPS of around 100W max output. It would be used on 230V AC only and would need to output around 5V@10A, 3.3V@10A and also supply 2.7V for the active termination used on the backplane.
I'm thinking of using an NCP1654 fot the PFC stage, a...
For the FPGA's I am thinking on using the older Spartan 3E or may be a Spartan 6, all would need to be in an TQFP package. I'm also thinking of using the XPLA3 in a TQFP for areas that have a bit more complexity than can be handled by a single GAL.
I'm looking at using a logic analyzer to check...
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