?2008 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN9611 " Rev. 1.1.7
31
Typical Performance Characteristics Operation
Typical characteristics are provided at T
A
= 25癈 and V
DD
= 12 V unless otherwise noted.
Figure 57. Ripple-Current Cancellation (110 V
AC
)
Figure 58. Ripple-Current Cancellation (110 V
AC
)
Figure 59. No-Load Startup at 115 V
AC
Figure 60. Full-Load Startup at 115 V
AC
Figure 61. Input Voltage Feedforward
Note:
6. For full performance operational characteristics at both low line (110 V
AC
) and high line (220 V
AC
), as well as at
no-load and full-load, refer to FEB388 Evaluation Board User Guide: 400 W Evaluation Board.
V
OUT
Line Current
V
OUT
Line
Current
I
L1
I
L2
I
L1
+ I
L2
I
L1
I
L2
I
L1
+ I
L2
110V
AC
220V
AC
Line
Vol
V
OUT
COMP
Line
Current
V
GATE
V
GATE
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