RDR-131 POWERINT [Power Integrations, Inc.], RDR-131 Datasheet - Page 20

• Manufacturer Part Number: RDR-131
• Description: Reference Design Report for 3 W Non- Isolated Constant Current LED Driver Using LNK306DN
• Manufacturer: POWERINT [Power Integrations, Inc.]

10 Conducted EMI
The measurements were taken with the power supply driving the 3 LEDs. The worst-
case input voltage was at 230 VAC, where the margin to the test limits was about
7 dBµV.
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Power Integrations, Inc.
Tel: [phone] Fax: [phone]
www.powerint.com
d B µ V
d B µ V
1 Q P
C L R W R
2 A V
C L R W R
dBµV
dBµV
1 QP
CLRWR
2 AV
CLRWR
1 5 0 k H z
150 kHz
80
70
EN55022Q
60
EN55022A
50
40
30
20
10
0
-10
-20
1 0 0
9 0
8 0
7 0
E N 5 5 0 2 2 Q
6 0
E N 5 5 0 2 2 A
5 0
4 0
3 0
2 0
1 0
0
- 1 0
- 2 0
1
1
Figure 19 – Conducted EMI at 230 VAC.
Figure 20 – Conducted EMI at 115 VAC.
1 MHz
1 MHz
LIMIT CHECK
LINE EN55022A MARG
LINE EN55022Q MARG
LIMIT CHECK
LINE EN55022A MARG
LINE EN55022Q MARG
MARG
MARG
10 MHz
10 MHz
30 MHz
30 MHz
SGL
TDF
SGL
TDF
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