Insulated Gate Bipolar Transistor (Igbt) Operation - Lincoln Electric POWER WAVE 355M Service Manual

INSULATED GATE BIPOLAR
TRANSISTOR (IGBT)
OPERATION
SOURCE
n +
p
n -
n +
p +
DRAIN
A. PASSIVE
GATE
n +
BODY REGION
DRAIN DRIFT REGION
BUFFER LAYER
INJECTING LAYER
POSITIVE
VOLTAGE
APPLIED
SOURCE
n + n +
p
n -
n +
p +
DRAIN
B. ACTIVE
GATE
BODY REGION
DRAIN DRIFT REGION
BUFFER LAYER
INJECTING LAYER