IRAUDPS1

IRAUDPS1 Datasheet

IRAUDPS1

Part	Datasheet
IRAUDPS1	IRAUDPS1 (pdf)

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IRAUDPS1 12V System Scalable 250W to1000W Audio Power Supply For Class D Audio Power Amplifiers Using the IR2085 self oscillating gate driver And Direct FETS IRF6648 By Manuel CAUTION: International Rectifier suggests the following guidelines for safe operation and handling of IRAUDPS1 Demo Board: • Always wear safety glasses whenever operating Demo Board • Avoid personal contact with exposed metal surfaces when operating Demo Board • Turn off Demo Board when placing or removing measurement probes IRAUDPS1 Page 1 of 35 Item Table of Contents 1 Introduction 2 System Specifications 3 Functional Block Description 4 IRAUDPS1 Block Diagram 5 Schematic IR2085 module 6 IRAUDPS1 mother board schematic 7 IR2085 module PCB layout 8 IRAUDPS1 mother PCB layout 9 BOM of IR2085 module 10 BOM of IRAUDPS1 mother board 11 BOM of Mechanical parts 12 Scalable IRAUDPS1 power table 13 Performance and test procedure 14 IRAUDPS1 Fabrication Drawings 15 Transformer winding instructions 16 Design example 17 Transformer design 18 MOSFET selection 19 Switching losses 20 Efficiency calculations 21 Frequency of oscillation 22 Selecting dead time 23 Over Temperature Protection 24 Short circuit protection 25 BJT gate driver option 26 Music Load Page 3 4 5 6 7 8 9 10-11 12 13-14 15-21 22-24 25-27 28-30 31 32 33 34 35 IRAUDPS1 Page 2 of 35 Introduction

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IRAUDPS1
12V System Scalable 250W to1000W Audio Power Supply For Class D Audio Power Amplifiers

Using the IR2085 self oscillating gate driver And Direct FETS IRF6648

By Manuel

CAUTION:

International Rectifier suggests the following guidelines for safe operation and handling of IRAUDPS1 Demo Board:
• Always wear safety glasses whenever operating Demo Board
• Avoid personal contact with exposed metal surfaces when operating Demo Board
• Turn off Demo Board when placing or removing measurement probes

IRAUDPS1

Page 1 of 35

Item

Table of Contents
1 Introduction
2 System Specifications
3 Functional Block Description
4 IRAUDPS1 Block Diagram
5 Schematic IR2085 module
6 IRAUDPS1 mother board schematic
7 IR2085 module PCB layout
8 IRAUDPS1 mother PCB layout
9 BOM of IR2085 module
10 BOM of IRAUDPS1 mother board
11 BOM of Mechanical parts
12 Scalable IRAUDPS1 power table
13 Performance and test procedure
14 IRAUDPS1 Fabrication Drawings
15 Transformer winding instructions
16 Design example
17 Transformer design
18 MOSFET selection
19 Switching losses
20 Efficiency calculations
21 Frequency of oscillation
22 Selecting dead time
23 Over Temperature Protection
24 Short circuit protection
25 BJT gate driver option
26 Music Load

Page 3 4 5 6 7 8 9 10-11 12 13-14 15-21 22-24 25-27 28-30 31 32 33 34 35

IRAUDPS1

Page 2 of 35

Introduction

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Datasheet ID: IRAUDPS1 638323