L6561
Figure 9. Demo Board (EVAL6561-80) Electrical Schematic
D1
STTH1L06
R4
180 k
R5
180 k
T
D8
1N4150
C5 12 nF
R14
100
R1
750 k
D2
1N5248B
R6
68 k
R50 12 k
C3 470 nF
R12
750 k
R11
750 k
Vo=400V
Po=80W
NTC
2.5
BRIDGE
FUSE
4A/250V
+
W04M
C1
1 µF
400V
C23
1 µF
R2
750 k
8
3
6
C2
10nF
5
2
1
7
4
R7
33
C6
47 µF
450V
Vac
(85V to 265V)
-
L6561
MOS
STP8NM50
R3
10 k
C29
22 µF
25V
C4
100 nF
D3 1N4148
C7
10 µF
35 V
R16
91 k
R15
220
R9
0.41
1W
R10
0.41
1W
R13
9.53 k
-
Boost Inductor Spec (ITACOIL E2543/E)
E25x13x7 core, 3C85 ferrite
1.5 mm gap for 0.7 mH primary inductance
Primary: 105 turns 20x0.1 mm
Secondary: 11 turns 0.1mm
THD REDUCER (optional)
Figure 10. EVAL6561-80: PCB and Component Layout (Top view, real size 57x108mm)
Table 6. EVAL6561-80: Evaluation Results.
V
in
(Vac)
85
110
135
175
220
265
Pin (W)
87.2
85.2
84.2
83.5
83.1
82.9
V
o
(Vdc)
400.1
400.1
400.1
400.1
400.1
400.1
∆Vo
(Vdc)
14
14
14
14
14
14
Po (W)
80.7
80.7
80.7
80.7
80.7
80.7
η
(%)
92.8
94.7
95.8
96.6
97.1
97.3
w/o THD reducer
PF
0.999
0.996
0.989
0.976
0.940
0.890
THD (%)
3.7
5.0
6.2
8.3
10.7
13.7
with THD reducer
PF
0.999
0.996
0.989
0.976
0.941
0.893
THD (%)
2.9
3.2
3.7
4.3
5.6
8.1
7/13
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