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TABLE OF CONTENTS
-THEORY OF OPERATION-
Theory of Operation .............................................................................................................Section E
General Description ....................................................................................................................E-2
Input Voltage...............................................................................................................................E-2
Precharge (Soft Start)..................................................................................................................E-3
Switch Boards.............................................................................................................................E-4
Main Transformer ........................................................................................................................E-5
Output Rectifier and Choke ........................................................................................................E-6
Control Board..............................................................................................................................E-7
Power Board ...............................................................................................................................E-8
Display Board..............................................................................................................................E-9
Thermal Protection....................................................................................................................E-10
Protective Circuits.....................................................................................................................E-10
Over Current Protection .....................................................................................................E-10
Over Voltage Protection......................................................................................................E-10
Field Effect Transistor (FET) Operation .....................................................................................E-11
Pulse Width Modulation............................................................................................................E-12
Minimum Output.................................................................................................................E-12
Maximum Output................................................................................................................E-12
Section E-1 Section E-1
POWER WAVE 450
FIGURE E.1 – POWER WAVE BLOCK LOGIC DIAGRAM
AUX.
