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Showing 118 results View by: Thread Post Sort by
    Answered
  • UC3842: Ramp compensation & strange behaviour on UC3842

    C.S.
    C.S.
    Resolved
    Part Number: UC3842 Other Parts Discussed in Thread: UC3845 , UC3843 We are building an MPPT tracker using the UC384* Family. The tracker takes a voltage from 100V to 300V and outputs constant current with a voltage limit of 350V. The current is regulated…
    • Resolved
    • over 2 years ago
    • Power management
    • Power management forum
  • UC3842: SOFT-START CIRCUIT

    prasanth Chigurupati
    prasanth Chigurupati
    TI Thinks Resolved
    Part Number: UC3842 Tool/software: Hi TI, How to calculate Css and Rss for soft start in UC3842?
    • over 1 year ago
    • Power management
    • Power management forum
  • UC3842: Average Current Mode PWM Controller

    C.S.
    C.S.
    TI Thinks Resolved
    Part Number: UC3842 Tool/software: We are designing a controller where we need to implement average current mode operation for a product that was designed for the (now obsolete) UC3848. Are there any other controllers that support this mode of operation…
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • UC3842: During start-up, the output pin has a 0-level output

    xiao.pan
    xiao.pan
    Resolved
    Part Number: UC3842 Tool/software: The yellow waveform is the pin6 output waveform, and there is a 0 level of 1ms during the startup process.During the output 0 level time, the level of the 1 pin drops to 0.7V, which may be related to comp I want…
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • UCC28C58: From UC3842 to UCC28C58

    TISL
    TISL
    TI Thinks Resolved
    Part Number: UCC28C58 Other Parts Discussed in Thread: UC3842 Dear e2e support, Our UCC28C58 offers a great pin to pin alternative to the UC3842; improving by ~10x the quiescent current. Do we have any collateral (similar to our Design Note DN-89…
    • over 2 years ago
    • Power management
    • Power management forum
  • Answered
  • UC3842: Slope calculation for inductor pole in Buck converter

    Rushiraj Desai
    Rushiraj Desai
    Resolved
    Part Number: UC3842 Hello TI E2E, I am using UC3842 to control Buck converter in current control mode, I am using SLUP340 to design feedback compensator it requires me to calculate WL i.e. pole due to inducator of Buck converter. for my first…
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • Answered
  • UC3842: finding transconductance of a modulator in the PWM controller.

    Rushiraj Desai
    Rushiraj Desai
    Resolved
    Part Number: UC3842 Other Parts Discussed in Thread: UC2843 Hello TI E2E, I am using UC3842 to design a simple Buck converter with, Vin=48V Vout=12V Iout=5 I am referring SLUP340 as a reference for my design, It mentions to find transconductance…
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • UC3842: UC3842

    Aarohi Anil Jaiswal
    Aarohi Anil Jaiswal
    TI Thinks Resolved
    Part Number: UC3842 Hello, I am building an Emergency Power supply using flyback. My input voltage is 400V and output voltage is 12V. I am using peak current mode control. Can I use this configuration with auxilary winding for UC3842?
    • over 4 years ago
    • Power management
    • Power management forum
  • UC3842: Help with UC3842 Soft start circuit

    Priyankar Vidwans
    Priyankar Vidwans
    TI Thinks Resolved
    Part Number: UC3842 Hello everyone, I am a student, and I am building a LED driver for my project. I'm using the UC3842 as my control IC for the flyback converter. While designing the circuit, unfortunately I did not implement a soft-start circuit…
    • over 4 years ago
    • Power management
    • Power management forum
  • UC3842: UC3842

    Sadik Cinik
    Sadik Cinik
    TI Thinks Resolved
    Part Number: UC3842 Other Parts Discussed in Thread: UC2825 Hi, Is there any current mode controller that supports up to 600V input voltage and external reference set? Thanks,
    • over 4 years ago
    • Power management
    • Power management forum
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