RDR-131 Datasheet, PDF (20/24 Pages) Power Integrations, Inc. – Reference Design Report for 3 W Non- Isolated Constant Current LED Driver Using LNK306DN

RDR-131 LED Driver – LNK306DN
7-Mar-07
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.
dBµV ₈₀
70
1 QP EN55022Q
CLRWR
60
2 AV EN55022A
CLRWR
50₁
40
1 MHz
10 MHz
LIMIT CHECK MARG
LINE EN55022A MARG
LINE EN55022Q MARG
SGL
TDF
30
20
10
0
-10
-20
150 kHz
Figure 19 – Conducted EMI at 230 VAC.
30 MHz
,
dBµV ₁₀₀
90
1 QP ₈₀
CLRWR
2 AV ⁷⁰
CLRWR EN55022Q
60
EN55022A
50
1 MHz
10 MHz
LIMIT CHECK MARG
LINE EN55022A MARG
LINE EN55022Q MARG
SGL
TDF
40
1
30
20
10
0
-10
-20
150 kHz
30 MHz
Figure 20 – Conducted EMI at 115 VAC.
Power Integrations, Inc.
Tel: [phone] Fax: [phone]
www.powerint.com
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