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TI Home » TI E2E Community » Support Forums » Power Management » AC/DC and Isolated DC/DC Power » All Tags » UCC 28070
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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".

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UCC 28070
  • AC to DC
  • boost
  • current sharing
  • DC Motor Controller
  • flyback
  • I think it is rather 20 ms. Just during startup it is 30 ms.
  • Interlieved
  • isolated power supply
  • Magnetics
  • motor driver
  • off-line
  • PFC
  • PFC 400Hz
  • Power Supply
  • PWM RECTIFIER
  • Si85xx
  • UCC28070
Related Posts
  • Forum Post: UCC28070 Implement Bridgeless Power Factor Correction (PFC)

    Antonio Jesus Garcia Antonio Jesus Garcia
    Hello, we are developing a PWM rectifier following the application note SLU517. I have some questions. - Can I use IGBT instead of MOSFTET? -If we connect the pin7 to VREF to disable current synthesis What happens? Should we make some change in the design? -Where can we find the current sense...
    on Jul 1, 2010
  • Forum Post: Re: UCC28070 Curreent sensing

    dragan svalina dragan svalina
    Hi Maurizio, Yes. UCC28070 has current synthesize which allow you to use resistor for current sensing. For amplifying I am using THS4281 in instrumental configuration and blanking puls . Duration of blanking puls depend on switching frequency and Qg chosen mosfet. 200-350ns blanking puls on raising...
    on Jan 14, 2011
  • Forum Post: 3.3kw PFC for car charger

    farhan alam12004 farhan alam12004
    hi i am designing a 3.3kw PFC for car chargers.my out put voltage is 450v but when there is no load at out put it works fine but as soon as i place load at the output the voltage drops to 300v does any body has idea whats the problem could be.
    on Jul 13, 2011
  • Forum Post: UCC28070 current sharing of 3 PFCs

    CWilson CWilson
    Hi all, I'm currently designing a 3 phase (4 wire) 230Vin PFC with the UCC28070. I would like to make some currentsharing on the output, and have read on e2e, that the Si85xx should be a fine choice for current measurement of current instead of a current sense inductor. My three PFC's...
    on Aug 5, 2011
  • Forum Post: ucc28070

    Wu Wei Yi Wu Wei Yi
    Hi,all.We are in process of designing PFE with UCC28070 integrated circuit . Power is 300W , 110V input voltage, 60HZ line frequency,180V Output, 100kHZ switch frequen. 180 ohm load test results , please refer to attached file for more information. Test results ucc28070 did not work. (Please visit...
    on Sep 28, 2011
  • Forum Post: UCC28070 variable output voltage

    Chris Walters Chris Walters
    I'm designing a PFC controller. I choose it because I'll need ~3.5kw output power and it supports running multiple controllers synchronized. I need my output voltage to be adjustable between 250-350volts, (120vac input). At first, I figured I could just adjust the feedback voltage divider to...
    on Nov 2, 2011
  • Forum Post: UCC28070 in interleaved <<Flyback>> topology - Possible?

    Geir Frode Raanes S���rensen Geir Frode Raanes S���rensen
    I need to power some servo motors, each rated 10 Amps at a nominal 156 VDC. Motor control will ensure that worst case will never be allowed to happen simultaneously, but I still need to come up with a 150 VDC power rail capable of say 15 Amps. That is an awful lot of power to produce in one strike. I...
    on Jan 18, 2012
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