Tool/software: WEBENCH® Design Tools
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Hello all;
I have not been able to see any way to add some 'real world' parasitics to the schematics that are generated... for instance, TPS62085, I wanted to add a small resistance and inductance between VOS and the output capacitor, to simulate the effects of a 'bad' layout, and there does not seem to be any way to accomplish that, for any of the connections? ?
Barry,
You can use the export to TINA-TI option to modify the schematic and simulate the response.
Regards,
Amod
That's just dandy, if one has TINA-TI ;-)
My corporate IT will not allow 'unauthorised programs' in the house...
Thanks, Amod; I have neither option, myself, but will check with colleagues who may have a licence, or a floating licence.
It would certainly be much nicer if the 'easy, breezy' Webench would allow a bit wider range of experimentation, but...
Best regards from Austria
Barry
Barry,
Hope you got hold of a license so you could try exporting and simulating the design. Thanks for all the feedback - I will convey it to the team so we can further enhance the tool.
Regards,
Amod
Miao,
We are currently not supporting thermal simulations in the new HTML5 WEBENCH Power Designer tool. We’re actively developing features that will help you estimate junction temperatures based on your design configuration, and can notify you as soon as the feature is released.
Regards,
Amod
Yes, right.
But, I try a simple design : AC-DC power supply 85-250VAC to 5VDC/0.5A not isolated.
A lot of answers but nothing "not isolated" and it's like this option have no effect for the design.
So have you really a not isolated design to make a very low cost power supply ?
Regards.
This new webench is interesting, but I wonder why with the old one when starting with same information I get different results into both webench? I click highest efficiency in both.
It's for TPS54424RNVR. there is also a big difference for the inductor (5.6uH versus 18uH) Does the "old" webench point out unstable values so it's better to stick to the beta version or vice versa?
Why Beta Webench did not show the 98% efficiency when I click highest efficiency?
Thanks
David
beta 95.57%
https://webench.ti.com/appinfo/webench/scripts/SDP.cgi?ID=7785E88842A4C458
normal 98.22%
https://webench.ti.com/appinfo/webench/scripts/SDP.cgi?ID=ECA4C0B34F95C6B8
Hi Rozor,
For a non-isolated application, you can probably use a High Side Buck. You can use the UCC28880/1 in the high side buck topology. The UCC28880 can go upto currents of 100mA and UCC28881 upto currents of 225mA. We support these devices in High Side Buck in WEBENCH. There are other devices that could be used in a buck topology like the UCC28C42. Here is a reference design that can help you with this.
http://www.ti.com/tool/PMP10833
If you are ok using a Flyback, here is a simple design in WEBENCH that can help you.
regards,
Gerold
Hi Olli,
We are currently working on enabling recompensation feature with the new WEBENCH tool and should be available soon. We encourage you to start using the new tool.
Regards,
Gerold