SR036_04 Datasheet, PDF (18/19 Pages) Supertex, Inc – Inductorless, Dual Output Off-Line Regulators

Technical Bulletin: SR03x EMI Reduction
The EMI reduction technique has an effect on power supply performance, as illustrated in the following graphs.
120VAC/60Hz
50%
Efficiency
40%
30%
without EMI
suppressor
with EMI
suppressor
20%
0
10
20
30
40
50
60
I_UNREG (mA)
Load Regulation
19
18
17
16
15
14
without EMI
13
suppressor
12
with EMI
11
suppressor
10
0
10
20
30
40
50
60
I_UNREG (mA)
208VAC/60Hz (230VAC/50Hz not available)
Efficiency
40%
30%
20%
without EMI
suppressor
with EMI
suppressor
10%
0
10
20
30
I_UNREG (mA)
Load Regulation
18
17
16
15
without EMI
14
suppressor
13
12
11
10
0
with EMI
suppressor
10
20
30
I_UNREG (mA)