Efficiency at Vin = 230V RMS
85.0%
87.0%
89.0%
91.0%
93.0%
95.0%
97.0%
99.0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
% Output Power
E
ff
ic
ie
n
c
y
(%
)
With Phase Managem ent
Without Phase Managem ent
1.40706
1.17256
0.93805
0.70354
0.46904
0.23453
0.00002
Amplitude(A)
0
6
12
18
24
30
36
42
48
Harmonic No.
V
= 230V
IN
RMS
Typical Performance Data
www.ti.com
Figure 6. Efficiency at 230 V
RMS
, With and Without Phase Management
Figure 7. Current Harmonics
UCC28060EVM 300-W Interleaved PFC Pre-Regulator
6
SLUU280B – May 2007 – Revised July 2008
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