24V, 15A, 360 Watts Power Supply

Hi Atul,
I would suggest you modify on TI's Designs.
You can search for the fit design on below link
www.ti.com/.../refdesignsearchresults.tsp
Here is a example for TI design for 350W PSU with Universal AC Input and 28V Output.
http://www.ti.com/tool/PMP9531

Hi,Please refer the link given below for 350W Constant Voltage - Constant Current (CVCC) reference design from TI.

http://www.ti.com/tool/pmp9622

Please suggest can we modify the same to meet following specification,

Input voltage 150V to 265 AC.
Out Put voltage 24VDC
Out put Current 15A.

Regards
Atul Bhakay

Hello TI.
Is the non-pdf or Altium compatible schematic and design files available for the PMP9622A reference design?

Hi Jim,
please use the gerber file of PMP9622 on the page.

Br

This zip file does NOT contain a native schematic file, only PCB layout files.

To save 20+ hours of design entry time, it would be best if TI would post the Altium project files and libraries or something compatible.

Hi Jim,Could you send me an email for the design files?Kening-gao@Ti.comBr

Hi Jim,sorry for the misunderstanding.
I can provide the altium design files to you, but please send me the request.Br

I am actively working on a design using the PMP9622 reference design, will you supply the Altium compatible design project files and lib files for the components for this reference design?

Any additional assistance in this reference design, such as engineering notes, etc would also be appreciated.

Hi Jim,
I am the application engineer of TI. i need to check your application and project information(company? area?).
And i would send the altium design files to you via email, after you email me the request or at least levarage your email address.
so, option 1, leave your email address. i will check and send design files to you.
option2, my email is Kening-gao@ti.com. send me an email.
Hope there is no other misunderstanding.Br

ides@idesolutions.us
I will be using the PS on a therm-o forming unit for Cath-Tip.

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I have built the reference design, but using 3200 V as my output, and scaling the feedback values to match my new output circuit.

But I have a question.

The PWM UCC3895 controller activates phase A and C together and phase B and D together (according to the data sheet Figure 14 "output A - D").

But referring to the reference design PMP9622A Schematic, phase A and C are both on the RAC drive side of the transformer primary, and B and D are on the low side of the transformer primary.

This does not make any sense at all, there will never be a complete circuit across the T2 transformer primary.

I do assume all of the driver circuits open the DS of  Q1, Q3, Q8 and Q10 are open circuits when the drive voltage to their gates are 0V.

I have not done so yet, but I believe phase C and D are reversed.
By swapping phase phase C and D at the controller chip outputs pins 14 and 15, the correct phase relationship will be presented to the drives and level shifting circuits and the correct complete circuits will be presented to the transformer through the driver circuits.

Please advise ASAP.

My employer is very upset with the time to market.

I have also had a lot of issues with the U7/T5 output voltages, the circuit runs at full speed then after a few seconds it goes into a pulsed form with a few cycles then a 15X timed pause, then repeats the sequence.

OK, I have a better idea of what is not correct.
At first I though phase C and D were reversed, but those are complimentary outputs and they are delayed from phase A and B.
So the issue should be phase B and D need to be swapped at the controller chip to allow the phase A and B to drive one A = High side and B = Low side drive to the primary of T1, and then phase C = high side and phase D = low side drive to T1 on the other cycle.
This would keep the relationship of Phase A and B then phase C and D intact.
I will be giving this a try on Monday.
As to the U7/T5 circuit, I am replacing this entire circuit with two low voltage transformers and scraping the TI reference design all together to produce +6.3VDC and 5.0 VDC and +- 12VDC sources to drive the system board.
I needed +-12VDC for 4-20ma circuits and this circuit does not supply the needed current for my design.

I just wanted to keep you all updated on the project.

The reference design does not function as designed, it is bogus.

The sub power system does not supply enough current to drive the circuits it was intended to drive, bogus. The HEXFET driver circuits do not supply the proper isolation of current to the PWM controller chip and it blows up the chip during startup.

I had three engineers other than myself look at the design and all agree it is not good, bogus.

Whomever designed the circuit should be fired at least take the reference design off of the web completely.

I found many other designs which do work.

Not this one.

Wasted 4 months on trying to get this bogus design to work.

Moved over to IR controller chips which worked first time out of the gate.

I do not understand why TI has no controls to verify reference designs before they are published.

BTW the Altium designed PCB layouts supplied were not complete, they required many hours of corrections to be able to produce them to boards.