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DIPIPM+ Series Application note
3.3 Noise and ESD withstand capability
3.3.1 Evaluation circuit of noise withstand capability
DIPIPM+ series have been confirmed to be with over +/-2.0kV noise withstand capability by the noise
evaluation under the conditions shown in Fig.3-3-1. However noise withstand capability greatly depends on the
test environment, the wiring patterns of control substrate, parts layout and other factors, it is recommended to
conduct enough evaluation using prototype product.
[Condition]
(1) For 1200V series; V
(2) For 600V series; V
Scheme of applying noise: From AC line (R, S, T), Period T=16ms, Pulse width tw=0.05-1μs, input in random.
AC input
(note)
C1: AC line common-mode filter 4700pF, PWM signals are input from microcomputer by using opto-couplers,
15V single power supply, Test is performed with IM
Publication Date: September 2016
=600V, V
=15V, T
=25°C, no load
CC
D
a
=300V, V
=15V, T
=25°C, no load
CC
D
a
C
Breaker
Voltage
slider
Heat sink
Noise simulator
Fig.3-3-1 Noise withstand capability evaluation circuit
U
R
DIPIPM
V
S
M
W
T
Fo
Control supply
(15V single power source)
I/F
Inverter
DC supply
45
Isolation
transformer
AC100V
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