EPR-54 Datasheet, PDF (13/40 Pages) Power Integrations, Inc. – Engineering Prototype Report for EP 54 - 2.75 W Charger/Adapter Using LNK520P

07-May-2004
EPR-54 – LinkSwitch 2.75 W Low Cost Charger / Adapter
7.4 Transformer Build Diagram
Shield & Bias
#31 26T
5
4
Secondary
#30 TIW 8T
2.0 mm
Barrier Tape
4 layer each
4
1
2.0 mm Barrier Tape 2.25 mm Barrier Tape
4 Layers
4 Layers
2 layer Tape
1^st layer: 14T
2 layer Tape
6
7
Wrapped
Copper Foil
1 layer Tape
2
Sheild
#32 33T
3
1
4 layer
Tape
KEY:
Figure 6a – Transformer Build Diagram.
= Electrical phasing
= Mechanical start; reversed winding direction or same winding direction with
bobbin rotated.
Page 13 of 40
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