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UCD3138: Control design for FB LLC converter

Part Number: UCD3138

Hello 

We need to design  define the control strategy for FB LLC converter, and many AN  in TI gave directly the digital compensator 2P2Z without identify the plant of system .

 I want to know if you use Extended Describing Function to define the Plant of system or other simplified method  in order to  identify the digital controller .

 Best regards 

N.TARIBA

  • I'm pretty sure we don't have a power supply model in our GUI for FB LLC. That's normally the main support we provide for helping with control design. So your choices are to analyze the plant either theoretically or with an instrument, or both, and to then generate values for the PID, or to tune the PID by hand.