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9.6
THE POWER SOURCE SIDE
If the above checks failed to discover the problem a deeper investigation of the Power Source
side is warranted.
9.7
DESIGN OF THE POWER SOURCE
Figure 9-1 illustrates the design theory used to generate and control the welder's output.
2
1
TROUBLESHOOTING
3
#
1
Main Power Switch
2
EMI Filter Board
3
Primary Rectifier on Power Board
4
Primary Inverter on Power Board
5
Main Transformer
6
Ferrite Cores
7
Output Diode Assembly
8
Current Sensor
9
Output Inductor
10 Internal Power Supply Board
11 Control Board
12 User Interface (UI)
13 Wire Feeder
14 Gas Valves
15 Fans
Figure 9-1. Power Side Functional Diagram
4
5
10
DESCRIPTION
9-6
7
6
8
9
11
13
14
12
15
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