參數(shù)資料
型號: AN-15
英文描述: TOPSwitch Power Supply Design Techniques for EMI & Safety
中文描述: 的TOPSwitch電源電磁干擾設(shè)計技術(shù)
文件頁數(shù): 21/36頁
文件大?。?/td> 381K
代理商: AN-15
A
6/96
AN-15
21
Figure 39. Typical 2-Wire TOPSwitch Power Supply and EMI Filter.
PI-1650-111695
7.5 V
RTN
C5
47
μ
F
D2
UG8BT
D3
1N4148
R2
68
VR2
1N5995B
6.2 V
C3
120
μ
F
25 V
T1
D1
UF4005
C2
680
μ
F
25 V
VR1
P6KE200
BR1
400 V
C1
33
μ
F
400 V
R1
39
U2
NEC2501-H
U1
TOP202YAI
DRAIN
SOURCE
CONTROL
C4
0.1
μ
F
C7
1.0 nF
Y1
L1
3.3
μ
H
F1
3.15 A
J1
C6
0.1
μ
F
X2
L2
22 mH
L
N
1
8
2
7
3
4
Figure 38. Transformer Shield Placement.
General Purpose TOPSwitch EMI
Filters
SECONDARY
Insulated Wire Transformer
Margin Transformer
TAPE
SHIELD
}
BIAS
TRANSFORMER SHIELD PLACEMENT
SECOND PRIMARY HALF
SECONDARY
MARGINS
BIAS
SHIELD
FIRST PRIMARY HALF
PI-1649-111695
PRIMARY
2-Wire AC Input
A typical
TOPSwitch
power supply and EMI filter for 2 wire AC
input applications is shown in Figure 39. X-capacitor C6 and
the differential mode inductance of common mode choke L2
attenuate differential mode emission currents. C7 (Y1-safety
capacitor) and the common mode inductance of common mode
choke L2 attenuate common mode emission currents. Note that
C7 can be replaced by two series connected Y2-safety capacitors,
each with twice the value shown.
相關(guān)PDF資料
PDF描述
AN-16 TOPSwitch Flyback Design Methodology
AN-17 Flyback Transformer Design for TOPSwitch Power Supplies
AN-18 TOPSwitch Flyback Transformer Construction Guide
AN-19 TOPSwitch Flyback Power Supply Efficiency
AN-20 Transient Suppression Techniques for TOPSwitch Power Supplies
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