Texas Instruments UCC28060EVM specifications Output Ripple Voltage at Full Load

www.ti.com Typical Performance Data

6.1Output Ripple Voltage at Full Load

Figure 8 illustrates the output ripple voltage.

Figure 8. VOUT Ripple, POUT = 300 W

6.2Input Ripple Current Cancellation

Figure 9 through Figure 14 show the input current (M1= IL1 + IL2), Inductor Ripple Current (IL1, IL2) versus rectified line voltage. From these graphs, it can be observed that interleaving reduces the magnitude of input ripple current caused by the inductor ripple current.

Figure 9. Inductor and Input Ripple Current at	Figure 10. Inductor and Input Ripple Current
85 VRMS at Peak of Line Voltage	at 85 VRMS Input at Half the Line Voltage

SLUU280B–May 2007–Revised July 2008 UCC28060EVM 300-W Interleaved PFC Pre-Regulator 7

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