• 

  David Huang33

  • 1 month ago
  • Power management
  • Power management forum

  RE: UCC28056: PFC with transformed input voltage, UCC28056

  Hi Mate. sorry for the delay response. I check the parameter you offer, it should be ok when using UCC28056. I suggest you can book an UCC28056EVM and do the modification to see the performance. please pay attention to : Brown in threshold...
• 

  Eric Lai

  • 2 months ago
  • Power management
  • Power management forum

  UCC28056: Can UCC28056 configure to follower boost topology

  TI Thinks Resolved

  Part Number: UCC28056 Hi Expert, The engineer is asking whether UCC28056 support the follower boost topology. The 1st output voltage is 260V then turn to 380V. The purpose is to get better efficiency. Pls advice whether UCC28056 can support...
• 

  Ola Baath

  • 2 months ago
  • Power management
  • Power management forum

  UCC28056: Error in datasheet or design calculator?

  Part Number: UCC28056 Hi, I am working on a 90-260V PFC converter. Right now I am having some stability issues, I've been using the datasheet compensator design and also the design calculator. To increase my confusion it doesn't seem like the...
• 

  Kevin Lai

  • 3 months ago
  • Power management
  • Power management forum

  UCC28056: issue with trying to adjust the valley switching delay

  • Resolved

  Part Number: UCC28056 Hi team, i have a customer using the UCC28056 and trying to adjust the valley
• 

  user3899198

  • 2 months ago
  • Power management
  • Power management forum

  UCC28056: output can not be maintained at desired voltage

  Part Number: UCC28056 Hello，E2E TI Expert ; I am now using your CRM PFC controller UCC28056, and I am now with some problems with the controller; 1) The DC output voltage rises with the increase of the input AC power voltage, and it is difficult to...
• 

  Nick52556

  • 4 months ago
  • Power management
  • Power management forum

  UCC28056: Not regulating - Believe ZDC/CS voltage is too high

  TI Thinks Resolved

  Part Number: UCC28056 I have modified a circuit to use the UCC28056. When I apply a 120VAC signal, the output does boost and gets to about 340V (set to 390V) but with almost no power. If I draw a constant 5W load, the output bounces around from 280V...
• 

  ACGUY

  • 6 months ago
  • Power management
  • Power management forum

  UCC28056: for 24V-AC input

  • Resolved

  Part Number: UCC28056 Hello E2E, Our customer is considering that to use the UCC28056 for 24V-AC
• 

  Joseph Slivinski

  • 7 months ago
  • Power management
  • Power management forum

  UCC28056: Through hole or larger alternative.

  TI Thinks Resolved

  Part Number: UCC28056 I am controlling a boost converter from 120VAC to 220VDC. I ordered a UCC28056 not realizing how small the chip would be, and I need to prototype the controller before ordering a PCB. The chip is too small to be soldered, at least...
• 

  Timmy Cheng

  • 8 months ago
  • Power management
  • Power management forum

  UCC28056: IC for single stage flyback without auxiliary coil

  • Resolved

  Part Number: UCC28056 Hi, I've noticed that UCC28056 is an IC which can control in transition mode
• 

  Mike O'

  • 7 months ago
  • Power management
  • Power management forum

  RE: UCC28056: PFC bandwidth crossover frequency

  Hello, I know that better than 0.95 has been achieved. I am not sure about 0.97. You might have to use average current mode control and current feedforwarded to achieve that. Regards,

Didn't find what you are looking for? Post a new question.

• Ask a new question