07-July-03
EPR-29 – 4 Output, 11 W, Universal Input, DVD Supply
7.3 Materials
Item
[1]
Description
Core: EEL25, TDK Gapped for AL of 320 nH/T2
[2]
[3]
Bobbin: EEL25 Vertical 14 pins
Magnet Wire: # 32 AWG
[4]
Teflon Tubing # 22
[5]
[6]
[7]
[8]
[9]
[10]
Copper Foil 0.12 mm thick, 14 mm wide.
Tape: 3M 1298 Polyester Film, 16.1 mm wide
Tape: 3M 1298 Polyester Film, 22.1 mm wide
Tape: 3M # 44 Polyester web. 3.0 mm wide
Copper Tape 2.0 mils thick, 16 mm wide.
Varnish
7.4 Transformer Build Diagram
Pin Side
12
14
-12 V
13
9
+3.3 V and +5 V
+12 V
11
8
13
7
NC
6
Shield 2
Bias
7
4
1
Primary
Shield 1
5
NC
NC = No Connection to a pin
Figure 5 – Transformer Build Diagram.
Power Integrations, Inc.
Tel: +1 408 414 9200 Fax: +1 408 414 9201
Page 11 of 36
www.powerint.com