< Dual-In-Line Package Intelligent Power Module >
Series Application note
Publication Date: September 2016
25
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Item
Symbol
Description
Inverter DC-link
negative terminal
NU, NV, NW
•
Emitter terminal of each N-side IGBT
•
Usually, these terminals are connected to the power GND through individual
shunt resistor.
•
If common emitter circuit (one shunt control) is applied, connect these
terminals together at the point as close from the package as possible.
Inverter power
output terminal
U, V, W
•
Inverter output terminals for connection to inverter load (e.g. AC motor).
•
Each terminal is internally connected to the intermidiate point of the
corresponding IGBT half bridge arm.
AC power supply
input terminal
R, S, T
•
AC power supply input terminal
Converter positive
output terminal
P1
•
Converter positive output terminal
Converter GND
terminal
N1
•
Converter GND terminal
(note)
Use oscilloscope to check voltage waveform of each power supply terminals and P and N terminals, the
time division of OSC should be set to about 1
μs/div. Please ensure the voltage (including surge) not
exceed the specified limitation.
If there is a surge more than threshold of ratings or superimposed noise, it is necessary to take some
counter noise measurements; revising pattern, replacing capacitor, apply zener diode, enhancing filtering
and so on.