LYT2002-2005
An overshoot is acceptable
Negative ring may increase
output ripple and/or degrade
output regulation
Figure 7.
Desired Drain Voltage Waveform with Minimal Leakage Ringing
Undershoot.
Figure 8. Undesirable Drain Voltage Waveform with Large Leakage Ring
Undershoot.
C7
1 nF
500 VAC
R1
10 kΩ
1/8 W
D3
R2
220 kΩ
UF5404
48 V
1
2
10
9
L1
470 µH
C3
1000 pF
630 V
J5
C6
R10
130 kΩ
100 µF
100 V
RTN
J6
NC
R4
100 Ω
BR1
B10S-G
1000 V
5
D1
S1ML
F1
2 A
4
L
T1
EE19
J2
C1
4.7 µF
400 V
C2
33 µF
400 V
90 - 265
VAC
R7
140 kΩ
1%
N
LYTSwitch-2
U1
LYT2005E
1/8 W
J1
D
S
FB
BP
R8
8.06 kΩ
1%
C4
1 µF
50 V
1/8 W
PI-7284-043014
Figure 9.
Example Schematic of LYTSwitch-2 Flyback Power Supply without Bias Supply.
7
Rev. B 09/15
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