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Principle & Technical data
FARC series block diagram of principle:
Figure 1: Block diagram of principle
This series welding machines applies HF MOSFET inverter technology. 1- phase 230V±10% input volt is
rectified by rectifier, inverted into HF AC, reduced by HF transformer, rectified and filtered by HF rectifier,
then output DC power suitable for welding. After this process, the welder’s dynamically responsive speed
has been greatly increased, so the welder size and weight are reduced noticeably.
Power source enjoy sound anti-fluctuating ability and high-quality performance during external context
changes. Easy to arc start, stable arc length, pretty weld formation and capability of continuous adjusting
the welding current.
54
U(V)
I(A)
U=20+0.04I
Imin
Imax
0
9
20
15
Figure 2: MMA mode Volt-Ampere curve
AC230V
±
10% / 50/60Hz
1-phase
Rectifier
HF
inverter
HF
transformer
Rectifier &
Filter
Control
circuit
Output
