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  • UCC28056EVM-296: 90V start up in heavy load has problem

    TI Thinks Resolved
    Part Number: UCC28056EVM-296 Hello expert, My customer faced an issue that 90V start-up has fail. They are using UCC28056BEVM-296 for test. Below is the waveform, any method for debugging steps? Thanks a lot! Best regar Best regards, Ann Lien

  • UCC28056EVM-296: question about the meaning of external components

    TI Thinks Resolved
    Part Number: UCC28056EVM-296 Tool/software: Hi experts, Our customer asked some questions as followings. could you answer those? about L1 Is it more effective to insert inductor on one side than both side? about D2 what is the function of…
    • Answered

  • UCC28056EVM-296: Loop Gain measurement of a PFC

    Resolved
    Part Number: UCC28056EVM-296 Other Parts Discussed in Thread: UCC28056 Tool/software: Good morning. We are developing a PFC , implementing TI's UCC28056 controller , to power an inverter that drives a brushless DC motor. We would like to measure…
    • Resolved
    • Answered

  • UCC28056EVM-296: Vout rises way above VoutReg under no load condition

    Resolved
    Part Number: UCC28056EVM-296 Other Parts Discussed in Thread: UCC25630-1EVM-291 , UCC28056 Tool/software: Hi, I'm currently doing some preliminary tests on two different UCC28056BEVM-296 evaluation modules that I have. For the test setup I'm using…
    • Resolved

  • UCC28056EVM-296: UCC28056:Convert UCC28064A EVM to Higher Switching Frequency Using UCC28065

    TI Thinks Resolved
    Part Number: UCC28056EVM-296 Other Parts Discussed in Thread: UCC28064A , UCC28065 Hi TI team, Applicatin note;Convert UCC28064A EVM to Higher Switching Frequency Using UCC28065 Is there an application note for the 700W module? Best regards.

  • UCC28056EVM-296: changed IC to UCC256304 work with UCC28056EVM-296 (problem 2)

    Part Number: UCC28056EVM-296 Other Parts Discussed in Thread: UCC28056 Hi all, AC IN Current Waveform shape is bad at use of step down Transformer. Step down from 3-phase AC 200 V to single phase 100 V with a commercial transformer LLC load is 120W…
    • Answered

  • UCC28056EVM-296: EVM audible noise

    Resolved
    Part Number: UCC28056EVM-296 Other Parts Discussed in Thread: UCC28056 , UCC28051 Hi Team, EVM audio noise comes out while VINAC up to 264V~280V, If want to avoid this, how can I adjust? Thank you.
    • Resolved

  • UCC28056EVM-296: THD and PFC

    TI Thinks Resolved
    Part Number: UCC28056EVM-296 Other Parts Discussed in Thread: UCC28056 UCC28056 can not meet the spec that customer required. It is tough for UCC28056 to meet THD1 and THD4, especially at 90Vac input. If customer can lower their spec, for example ,THD1…
    • Answered

  • UCC28056EVM-296: AC Current Waveform explanation for burst mode

    Resolved
    Part Number: UCC28056EVM-296 Other Parts Discussed in Thread: UCC28056 , Hi Ben-san, There are no explain for burst mode input current waveform in datasheet of UCC28056. Customer checked eight photos which is LLC EVM output load change. 1. Please…
    • Resolved

  • RE: UCC28056EVM-296: combination problem with use of UCC256302 DC88V input

    Hi Sonal-san, Are you looking at UCC28056EVM-296 Cct.? R5 is connected to MOSFET Drain and Anode of boost diode. Do you have another choice of change parts, to get good result at DC88V input? DC88V is equal to AC62V. It's very tough for UCC28056EVM…

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