Theory Of Operation; Inverter Design - Thermal Arc 201 TS Service Manual

THEORY OF OPERATION

5.01 Inverter Design

What does the word inverter mean?
The term inverter refers to the ability to change DC power into AC. Inverter power supplies immediately rectify the
incoming AC to DC, and then the transistors create a higher frequency AC. The higher frequency AC then goes on to
a much smaller main transformer than in a conventional power supply. The AC is then rectified to extremely smooth
DC. The diagram to the below shows the basic electrical wiring of a DC output inverter power supply.
Rectifier
AC-50/60Hz DC-Rippled
High Voltage High Voltage
Low Amperage Low Amperage Low Amperage Low Amperage
Manual 0-5148
SECTION 5:
THEORY OF OPERATION
Inverter Technology - Summary
Filter IGBT
DC-Smooth AC-23KHz
High voltage High Voltage
THERMAL ARC 161STL, 201TS
Transformer Rectifier
AC-23KHz DC- Rippled
Low Voltage Low Voltage
High Amperage High Amperage
5-1
Inductor
DC-Smooth
Low Voltage
High Amperage
Art # A-09846
Theory of Operation