AC/DC and Isolated DC/DC Power

Browse by Tags

AC/DC and Isolated DC/DC Power

Welcome to the AC/DC and Isolated DC/DC Power Section of the TI E2E Support Community. Ask questions, share knowledge, explore ideas, and help solve problems with fellow engineers. To post a question, click on the forum tab then "New Post".

Tags
You have subscribed to this tag. To view or manage your tag subscriptions, click here.   Close
You have unsubscribed from this tag. To view or manage your tag subscriptions, click here.   Close
You are currently viewing:
AC-DC
Related Posts

  • Forum Post: AC-DC Power Design Services Firm

    Jaden Ghylin102047
    Who does TI recommend for design services on high power AC-DC power supply designs? Requirements are 85-264VAC, 400-800W out at 24VDC with 85%+ efficiency. Are there a few firms that have experience with TI/Unitrode parts: UCC28070PW, UCC28950PW, etc.? -Jaden
    on Jun 21, 2012

  • Forum Post: RE: ucc28070

    Shishir Kulkarni
    Sir, The problems stated above are same to mine too, i.e. I have blown a FET and the fuse too. In the above discussions you have mentioned, that the problem was solved, but not how it was solved. Kindly provide the details as to what were the changes you made after the FET blowing in Phase B started...
    on Sep 6, 2012

  • Forum Post: 3.5KV 1A offline boost?

    Tracy Markham
    Obviously the WebBench won't calculate this. I'm not totally new to power, but this level is a first for me. It would be grand to take either 120 or 220 directly out of the wall and end up with a high / low PS with 3500V & 2500V with either being capable of delivering up to 1A peak, 750 mA...
    on Sep 21, 2012

  • Forum Post: UCC28700 Flyback transformer selection

    Ye-sheng Kuo
    Hi, I'm designing the AC/DC converter. The output is 5 V and 10 W maximum. Given the equation from the datasheet, I found that the transformer should have ~500 uH, 13-15 Nps (Primary to Secondary turns ratio) and ~3 Nas (Auxiliary to Secondary turns ratio). I couldn't found the appropriate...
    on Oct 30, 2012

  • Forum Post: Problem with UCC28070 IC

    Donovan Davidson
    I have encountered a problem with using the UCC28070 IC in a universal range power factor correction application. The symptom is that the IC turns the PFC regulator stage off repeatedly when the AC input voltage is reduced through about 95VAC at full load. It does not due so when the AC voltage is increased...
    on Nov 2, 2012

  • Forum Post: UCC35702 - maximum duty cycle

    Wm Blum
    Working on an implementation of UCC35702D as a off-line buck convertor. Having issues with achieving 99% duty cycle. 1. Output level is controlled by introducing voltage to the VSclamp pin. I can control VSclamp from 0 to 3V. 2. FB pin is connected to Vref via a 1K resistor. FB sits at 4.90V. 3...
    on Feb 13, 2013

  • Forum Post: SMPS 28VDC@4 amps - UCC3813 and PMP3029

    sanjeev kumar87916
    Hi all, I am looking for a reference design(schematic+BOM) for switch mode power supply(SMPS) with the following specifications and having LOW BOM cost. Input voltage: 230V AC, 50Hz Output voltage: 28V DC @ 4 amps. If anybody can send me the reference schematic and BOM, that will be a great...
    on Mar 26, 2013

  • Forum Post: WINDING INFORMATION FOR PMP5500.1 USING UCC25600

    Neelesh Karun
    Dear Sir, Require all the transformer winding information for the above solution, thanks and regards
    on Mar 29, 2013

  • Forum Post: RE: Mosfet failure during testing Using US28950

    KADIR YILMAZ
    I do not thing that Mosfet is the problem.. Check your driver IR2010. Normally at high frequency full bridge operation high side low side driver is not good idea to use,, use pulse transformer to drive the upper Mosfets.. .. There is so many reason for that.. Bu I cannot goo much detail here...
    on Apr 25, 2013

  • Forum Post: Superimpose DC output with Sine wave

    Fred Kleytman
    I have AC - DC linear PS that is controlled by uA723 For my product test purposes I would like to be able to modulate output voltage with sine wave using sweep generator. AC - DC linear PS Vout max = 16V; Modulation Vp-p=4V; Modulated Vout max = 16V Vout min = 12V Frequency range 50HZ - 20kHz ...
    on Apr 26, 2013

  • Forum Post: RE: UCC28070 OVP problem at load step?

    Ralph Saunders
    C Wilson: I use 1>3 28070's in a 2-4-6 phase regulator and have minimal overshoot problems. My load is a bit different in that I have a large pulse discharge and then the boost function refills the cap bank. Ensure you don't have too much filter cap on both the vinac and the vsense inputs...
    on May 9, 2013

  • Forum Post: UCC28070 1.2KW PFC problem

    Finn Br��sen
    Hi All Is there anyone who can help me on the way to a solution of this problem? During testing of my 1.2KW interleaved PFC with UCC28070 I see this phenomenon at a load of approx. 600W. When the line voltage reaches its max. level p/p is the pulse width uneven, with the result that every third...
    on May 15, 2013

All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.

Content on this site may contain or be subject to specific guidelines or limitations on use. All postings and use of the content on this site are subject to the Terms of Use of the site; third parties using this content agree to abide by any limitations or guidelines and to comply with the Terms of Use of this site. TI, its suppliers and providers of content reserve the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.

TI Worldwide | Contact Us | my.TI Login | Site Map | Corporate Citizenship | mobile m.ti.com (Mobile Version)

TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs and
embedded processors, along with software, tools and the industry’s largest sales/support staff.

© Copyright 1995-2013 Texas Instruments Incorporated. All rights reserved.
Trademarks | Privacy Policy | Terms of Use