• UCC28742: Can the UCC28742 IC operate in quasi-resonant mode?

  

  Tsvetan Ginin

  TI Thinks Resolved

  Part Number: UCC28742 Other Parts Discussed in Thread: TIDA-01505 , UCC28C43 , UCC28722 Tool/software: Hi team, Can the UCC28742 IC operate in quasi-resonant mode? If so, why does it not have a QR input? Regards, Tsvetan Ginin

  • 4 months ago
  • Power management
  • Power management forum

• UCC28742: UCC28742

  

  vipin Mishra

  TI Thinks Resolved

  Part Number: UCC28742 Tool/software: Hi Team , I m using your UCC28742 Simplis model for simulation but we are getting errors while simulation it .Below is the error message i m getting .i just want to know weather we can run this example simulation…

  • over 1 year ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum

• UCC28742: Turns ratio calculation

  

  Preerag M

  TI Thinks Resolved

  Part Number: UCC28742 This is a general question regarding design of flyback converters. In a flyback converter design, the transformer datasheet specifies both the turns ratio (with tolerance) and the primary and secondary inductances (also with tolerances…

  • 1 month ago
  • Power management
  • Power management forum

• UCC28742: UCC28742 output voltage 5.2V has overshoot

  

  chan andy

  TI Thinks Resolved

  Part Number: UCC28742 Tool/software: Hi, Thank you for your reply. Attached is circuit of output part, now the output capacitance is about 700uF. It maybe a little small, but I think is OK. And I try increasing the capacitance, it seems almost the same…

  • over 1 year ago
  • Power management
  • Power management forum

• UCC28742: UCC28742 output voltage 5.2V has overshoot

  

  chan andy

  TI Thinks Resolved

  Part Number: UCC28742 Tool/software: Hi, When I use UCC28742 to ouput 5.2V(main feedback), 15V and 24V, 5.2V has overshoot. Maximum voltage is about 5.8V, exceed 10%. At the beginning, switching frequency is high, how should I adjust the parements?…

  • over 1 year ago
  • Power management
  • Power management forum

• UCC28742: Design simulation using Tina

  

  Zoe Zhai

  Part Number: UCC28742 Hi, I have used your WEBENCH power supply designer to design a 480VAC to 700VDC then 28V 4A DC. But when I Using TIna to simulate it not getting 28V at the output. plus, I cannot find the model for UCC24636DBV. I need your help…

  • 3 months ago
  • Motor drivers
  • Motor drivers forum

• UCC28742: High voltage (100V - 700V) flyback rectifying design review

  

  Zoe Zhai

  TI Thinks Resolved

  Part Number: UCC28742 Other Parts Discussed in Thread: UCC24636 Hi! I have used you online WEBENCH to simulated a 100V - 700VDC input and 28V output flyback. The shcematics is attached. I also attached a DC-Link from 3 phase 480VAC to 700VDC rectifiy…

  • 2 months ago
  • Power management
  • Power management forum

• UCC28742: High voltage (100V - 700V) flyback rectifying design review

  

  Zoe Zhai

  Part Number: UCC28742 Other Parts Discussed in Thread: UCC24636 Hi! I have used you online WEBENCH to simulated a 100V - 700VDC input and 28V output flyback. The shcematics is attached. I also attached a DC-Link from 3 phase 480VAC to 700VDC rectifiy…

  • 2 months ago
  • Power management
  • Power management forum

• UCC28750-SIMPLIS: Issue with modified sluj001a in 24Vdc output. (UCC28742)

  

  Chong Ching Yong

  Part Number: UCC28750-SIMPLIS Other Parts Discussed in Thread: UCC28742 Dear Sir I have sluj001a running fine on simplis. But when i modify into 24V configuration: Change S1 winding to 350m(91uH) RPL1 to 75k, RPL2 to 8.8k Rcs to 0.33ohm, R18…

  • 2 months ago
  • Power management
  • Power management forum

• UCC28742: UCC28742

  

  Cui Zhang

  Part Number: UCC28742 UCC28742 is broken while doing surge test.

  • over 2 years ago
  • Power management
  • Power management forum

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