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TIDA-010054: Design

NETHRAA KUMAR
Prodigy 160 points
Part Number: TIDA-010054

Tool/software:

Hi,

here you have mentioned maximum power transfer occur at 90 degree

you have choosen 23 degree can you please in detail how to choose the phase shift

  • 0
    TI__Expert 4400 points

    Hi, 

    Plotting the power transfer equation

    results in a curve as shown below: 

    We can see that the maximum power transfer happens at 90 degrees.
    The smaller value of 23 degrees was selected for two reasons:

    1. Lower output voltages. As we can see in the equation a lower output voltage will reduce the maximum output power. 
    So to achieve 10kW at 350V Vout for example 34 degrees of phase shift is need.

    2. It is preferred to stay in the linear part of the power transfer curve. This makes the control easier. 

    Best regards,

    Andreas