Answered

• UC3842: About the application of UC3842

  

  Alvin Lin

  Resolved

  Part Number: UC3842 Hi TI's taem We want to use UC3842 as a Voltage Mode PWM. Do RT/CT circuits need to be connected like the below picture from datasheet? Can it be connected like the typical circuit (just using a resistor and capacitor)? Will the…

  • Resolved

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

• UC3842: Open loop test

  

  ABINOMOL VARGHESE

  TI Thinks Resolved

  Part Number: UC3842 Other Parts Discussed in Thread: UC3844 , Hi How can we check the open loop test of uc3842/uc3844? I gave Vcc = 17V, Vfeedback = 2.5V externally Isense = 0.5V externally When applying all these voltages, the output pulse I'm getting…

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

• UC3842: No Gate pulse at the output

  

  Priyankar Vidwans

  Part Number: UC3842 Hello All, I am a student trying to build a LED driver circuit for my project. I am trying to power up the circuit step by step to check for errors. I have a ready PCB with all the components on it. I am trying to see if UC3842 is…

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

• UC3842: looking for a development board or reference design

  

  Gerald

  Part Number: UC3842 Hi Experts, Our customer is looking for a development board or reference design for one IC from the UCx84x or UCx84xA family. I tried to look for it but was not able to find one. If we do have it please share it here. Otherwise, please…

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

• UC3842: Inquiry for Figure 25

  

  Renan Santos Adriano

  TI Thinks Resolved

  Part Number: UC3842 Hello Team, My customer would like to ask what type of transformer is used in Figure 25. Also, if we have the cross-section of the coils, and both primary and secondary side wire cross-sections. Regards, Renan

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

• RE: UCC28C52-Q1: SIMPLIS Model available for UCC28C52?

  

  Hong Huang

  Resolved

  Hi, We do not have its Simplis model. The closest one is uc3842 which is available from Simplis lib.

  • 2 months ago
  • Power management
  • Power management forum

• UC3842: UC3842 Transfer Function

  

  Werner Verschuur

  Part Number: UC3842 Hi, I need help converting a UC3842 in Flyback application Transfer Function from Plant H(s) and Closed Loop G(s) to h(t) and g(t) to do Bode Plots of Gain and determine crossover frequency. H(s) = Fgo*(1 + (s/Wesrz)) * (1 - (s/Wrhpz…

  • over 5 years ago
  • Power management
  • Power management forum
Answered

• UC3842: Synchronization

  

  J

  Resolved

  Part Number: UC3842 In the UC3842 datasheet what is the synchronization function , I can't understand the word, Can somebody make a easy example to explain this to me?

  • Resolved

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

• UC3842: Slope Compensation

  

  J

  Resolved

  Part Number: UC3842 Other Parts Discussed in Thread: UCC28C42 , How to understand the slop compensation circuit , I know the peak current mode control but I can't understand how to generate the triangle wave use BJT

  • Resolved

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

• UC3842: Oscillator charging ramp equations

  

  J

  Resolved

  Part Number: UC3842 I think the oscillator charging ramp equations is wrong the Ichg is time variant is not a constant how do the datasheet can get the delta Vosc can someone writhe more detail this data is hard to read. I want to know how to calculate…

  • Resolved

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

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