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  • PMP40766: Universal Voltage PFC

    Part Number: PMP40766 Other Parts Discussed in Thread: UCC28180 Tool/software: Hi TI Team, Require PFC for 400Watts charger front end What is the purpose of Q4,Q5 switch and its associated circuits,will i be use UCC28180 IC alone for my application…
    • Answered

  • UCC256403: Questions Regarding LLC Design for Battery Charger (Based on PMP40766)

    Resolved
    Part Number: UCC256403 Other Parts Discussed in Thread: PMP40766 , , TINA-TI Tool/software: Dear TI Team, I am developing an LLC DC/DC converter for a battery charger, referring to the PMP40766 reference design. Since this is my first LLC design, I…
    • Resolved
    • Answered

  • PMP40766: can the 47-ohm resistor RF1 under C11 be replaced with an ordinary resistor?

    Resolved
    Part Number: PMP40766 Tool/software: Hi， In the PFC circuit, can the 47-ohm resistor RF1 under C11 be replaced with an ordinary resistor? If not, can I directly short it to test the voltage across C11? Now, when the input voltage is 220VAC, the voltage…
    • Resolved
    • Answered

  • PMP40766: UCC256403

    Resolved
    Part Number: PMP40766 Other Parts Discussed in Thread: TL103W Tool/software: Hi, I wanted to understand how the CC & CV works in this refernce design.
    • Resolved
    • Answered

  • PMP40766: PMP40766 - Higher Voltage Design

    Resolved
    Part Number: PMP40766 Other Parts Discussed in Thread: AM2431 Hi , We want to make design up to 84V , 10A output. So what are the components and parameters need to change into the exciting reference design. Regards, Nilesh
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    • Answered

  • PMP40766: CC/CV setpoint adjustment with MCU

    Resolved
    Part Number: PMP40766 Tool/software: Hello, Would like to ask regarding the use of MCU for CC/CV control. How would the implementation be like? Is there a need of additional circuit for Vbias/IREF signals in order to change the voltage/current setpoint…
    • Resolved

  • PMP40766: Why are the same-named terminals of transformer T1 in LLC opposite between the primary and secondary sides?

    TI Thinks Resolved
    Part Number: PMP40766 Tool/software: Hi , Generally speaking, the dotted terminals (polarity markings) of the transformer in a half-bridge LLC converter are typically the same for both primary and secondary windings. However, in this specific design…

  • PMP40766: Input Over Voltage & under voltage shutdown

    TI Thinks Resolved
    Part Number: PMP40766 Other Parts Discussed in Thread: UCC256403 Tool/software: Hi, We are working on 1200W EV charger (58V, 20A). We have chosen UCC28180DR for PFC & UCC256403 for LLC, also we are referring PMP40766 reference design. In this design…

  • PMP40766: Why does the red light turn on and the fan rotate after analysis when the LLC is in constant voltage mode?

    TI Thinks Resolved
    Part Number: PMP40766 Tool/software: HI, When the LLC circuit is in constant voltage control mode, Vout = 71.4V. When the current decreases to 0.7A, the non-inverting input terminal of U6A should be 0.175V through calculation. The inverting input terminal…
    • Answered

  • PMP40766: How this CC/CV mode works

    Resolved
    Part Number: PMP40766 Other Parts Discussed in Thread: TL103W Can anyone explain how the CC and CV mode works in the reference design? At Vbias point we get a voltage of 2.5V approx. And Vref is 7.3V aprrox. How this opamp U7A works in CV mode?
    • Resolved

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