8
IGBT
inverter
AC
HF
transformer
AC
Rectifier unit
DC output
Inductance filter
DC
Current sampling
Negative feedback
control circuit
PI adjust
control circuit
IGBT drive
circuit
PWM circuit
Current giving
control circuit
Input power
(
AC
)
Frequency
rectify circuit
DC
Overheat protection
circuit
Working Principle
Summary of Contents for LGK-240P
Page 1: ...LGK 240P INVERTER AIR PLASMA CUTTING MACHINE...
Page 2: ...1 2 3 IP21S 4 5 A...
Page 3: ...1...
Page 4: ...2 3 4...
Page 5: ...5 6 7...
Page 6: ...8 1 2 3 4 5 9...
Page 7: ...10 80...
Page 8: ...1 4 4 4 5 7 8 8 9 11 12 12 13 14 1 15...
Page 9: ...1...
Page 10: ...2 60 10 6 4...
Page 11: ...3 1 2 20 90 40 50 3 10 40 4 5 30cm 30cm 6 1000m...
Page 12: ...4 L G K 2 40 P 40A 220V IGBT GB T 15579 1 2013 GB T8118 2010...
Page 14: ...6 2...
Page 15: ...7 IGBT 40KHz PWM IGBT AC AC DC PI IGBT AC DC...
Page 16: ...8 1 2 3 4 5 6 7 8 9 AC220 10 1 2 4 5 6 7 8 9 10 3...
Page 17: ...9 1 2 3 4 1 2 3 4 IP21S 5 15 1...
Page 18: ...10 6 6mm2 7 6mm2 8 9...
Page 19: ...11 10 1 2 3 220VAC 220VAC...
Page 20: ...12 6...
Page 21: ...13 1 1 2 1 2 2 1 2 3 1 2 3 3 1 1 4 1 2 3 4 5 1 2 3 4 5 5 1 2 1 2...
Page 22: ...14 1 1 2 1 3 1 4 1...
Page 23: ...15 1...
Page 24: ...LGK 240P INVERTER AIR PLASMA CUTTING MACHINE...
Page 38: ...6 2 Cutting capacity Technical specifications...
Page 48: ...16 Electric Diagram...
Page 49: ...17...