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SECTION E-1

THEORY OF OPERATION

SECTION E-1

 

TABLE OF CONTENTS

 

-THEORY OF OPERATION SECTION-

 

Theory of Operation

Section E

Modular Inverter Based Welding System

E-2

System Diagram A

E-2

System Diagram B

E-3

System Diagram C

E-4

Power Source General Description

E-5

Input Voltage and Precharge

E-5

Switch Boards and Main Transformer

E-6

Control Board

E-7

Output Rectifier and Choke

E-8

Thermal Protection

E-9

Protective Circuits

E-9

Over Current Protection

E-9

Under/Over Voltage Protection

..........................................................................................................

E-9

Insulated Gate Bipolar Transistor (IGBT) Operation

E-10

Pulse Width Modulation

E-11

Minimum Output

E-11

Maximum Output

E-11

Control Box (User Interface)

E-12

Power Feed 10 Feed Head

E-13

POWER WAVE 455/POWER FEED 10

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Lincoln Electric SVM135-B service manual Table of Contents Theory of Operation Section
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