• UC3825: UC3825 dead time use?

  

  Simba Su

  TI Thinks Resolved

  Part Number: UC3825 UC3825 dead time is the dead time of the oscillation frequency? UC3825 finally outputs two paths, and the dead zone time of these two paths is 1/2? The dead zone of the oscillator if nothing else is considered, is the dead zone time…

  • 6 months ago
  • Power management
  • Power management forum

• UC3825: Simulation model required for simulating in Altium Design 24 tool.

  

  Monika Sharma

  TI Thinks Resolved

  Part Number: UC3825 Tool/software: Dear Sir/Ma'am, I am Monika Sharma working as a Sr. Hardware Design Engineer at Univlabs Pvt. Ltd., India. I am facing some issue while simulating the design circuit using UC3825 IC in Altium Software. I have contacted…

  • 4 months ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum
Answered

• UC3825: About the soft start of UC3825

  

  Alvin Lin

  Resolved

  Part Number: UC3825 Hi TI's team: In the application of UC3825, there is a question need your help to reply. Does the capacitance of the SS pin participate in the loop response? Would different capacitance values affect the loop stability？ Thank you…

  • Resolved

  • over 3 years ago
  • Power management
  • Power management forum
Answered

• UC3825: uc3825 or equivalent

  

  robin gangopadhya18

  Resolved

  Part Number: UC3825 Hello: There is a circuit for Open loop testing of UC3825 in the d/s. A long time ago, I had witnessed testing of this IC( with Unitrode lab in Irvine, CA)...so I know open-loop PWM generation with complete control over 0-100 % is…

  • Resolved

  • over 3 years ago
  • Power management
  • Power management forum

• UC3825: I am trying to simulate a spice model of UC3825 IC

  

  Ray Vincent Aranzaso

  TI Thinks Resolved

  Part Number: UC3825 Other Parts Discussed in Thread: TINA-TI Hi, Good Day. I have a customer who is working with UC3825. Please see below his query for your reference. Thank you very much. I am trying to simulate a spice model of UC3825 IC I have obtained…

  • over 3 years ago
  • Power management
  • Power management forum

• UC3825B: UC3825

  

  salvatore silvestri

  TI Thinks Resolved

  Part Number: UC3825B Dear Sirs I am looking for a UCx825.ZIP file including the pspice model for this switching controller. Could you plase help me? Thanks and Regards

  • over 3 years ago
  • Power management
  • Power management forum

• UC3825: About the soft-start

  

  Alvin Lin

  TI Thinks Resolved

  Part Number: UC3825 Hi, ti's team: Good day. There is a question when i apply the UC3825 for a flyback circuit. I connected the SS pin to ground with a 0.1uF capacitor, but when I turned on the power supply, I still found a large overshoot. My question…

  • over 3 years ago
  • Power management
  • Power management forum
Answered

• UC3825: minimum duty cycle limit

  

  user5823347

  Resolved

  Part Number: UC3825 Uc3825 has the minimum duty cycle limit, such as 5%. If the duty cycle is less than 5%, the duty ratio of the chip output may become 0. I want to know the principle.

  • Resolved

  • over 3 years ago
  • Power management
  • Power management forum

• UC3825: PWM not OK

  

  Vijay P Limaye

  TI Thinks Resolved

  Part Number: UC3825 Hi, We are using UC3825DWTR in a DC-DC converter. The converter consists of MOSFETs full bridge operating from 380V DC feeding transformer primary. The transformer secondary is center tapped with diode rectifier followed by filter and…

  • over 4 years ago
  • Power management
  • Power management forum

• UC3825: HF TRANSFORMER

  

  PONJOTHILAKSHMI RAJALINGAM

  TI Thinks Resolved

  Part Number: UC3825 I want to design 20kHZ, 250W transformer. Where do i get this or is there any code for transformer design so that I can design the core values on my own?

  • over 4 years ago
  • Power management
  • Power management forum

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