Fairchild FEB157-001 User Manual

Page 2

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© 2007 Fairchild Semiconductor

Page 2 of 17

Rev 1.1 April 2007

www.fairchildsemi.com

Contents

1. Introduction ............................................................................................................................................3

1.1 Product Description ..........................................................................................................................3

1.2 Circuit Description ...........................................................................................................................3

2. Electrical Requirements ............................................................................................................................6

2.1 Input Requirements...........................................................................................................................6

2.2 Output Requirements ........................................................................................................................6

3. Designed Solution ...................................................................................................................................7

3.1 Schematic.......................................................................................................................................7

3.2 Transformer.....................................................................................................................................8

3.3 Bill of Materials ...............................................................................................................................8

3.4 Printed Circuit Board ......................................................................................................................10

4. Test Results ...........................................................................................................................................12

4.1 Regulation ....................................................................................................................................12

4.1.1 Line Regulation ..................................................................................................................12

4.2 Efficiency......................................................................................................................................13

4.3 Steady State Operation ..................................................................................................................14

4.4 Start up ........................................................................................................................................15

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