EPR-29 Datasheet, PDF (11/36 Pages) Power Integrations, Inc. – Engineering Prototype Report for EP-29 - Multiple Output 11 W (15.5 W peak) AC-DC Power Supply using TNY268P

07-July-03
EPR-29 – 4 Output, 11 W, Universal Input, DVD Supply
7.3 Materials
Item
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
Description
Core: EEL25, TDK Gapped for AL of 320 nH/T²
Bobbin: EEL25 Vertical 14 pins
Magnet Wire: # 32 AWG
Teflon Tubing # 22
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
13
9
11
8
13
7
NC
6
7
4
1
5
NC = No Connection to a pin
Figure 5 – Transformer Build Diagram.
-12 V
+3.3 V and +5 V
+12 V
Shield 2
Bias
Primary
Shield 1
NC
Page 11 of 36
Power Integrations, Inc.
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www.powerint.com