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

© 2007 Fairchild Semiconductor

Page 2 of 17

Rev 1.1 April 2007

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Fairchild FEB157-001 manual Contents