Sep.1998
6.6
Controlling the Intelligent
Power Module
IPM (Intelligent Power Modules)
are easy to operate. The integrated
drive and protection circuits require
only an isolated power supply and
a low level on/off control signal. A
fault output is provided for monitor-
ing the operation of the modules in-
ternal protection circuits.
6.6.1 The Control Power Supply
Depending on the power circuit
configuration of the module one,
two, or four isolated power supplies
are required by the IPMs internal
drive and protection circuits. In high
power 3-phase inverters using
single or dual type IPMs it is good
practice to use six isolated power
supplies. In these high current ap-
plications each low side device
must have its own isolated control
power supply in order to avoid
ground loop noise problems. The
control supplies should be regu-
lated to 15V +/-10% in order to
avoid over-voltage damage or false
tripping of the under-voltage pro-
tection. The supplies should have
an isolation voltage rating of at
least two times the IPM’s V
CES
rat-
ing (i.e. V
iso
= 2400V for 1200V
module). The current that must be
supplied by the control power sup-
ply is the sum of the quiescent cur-
rent needed to power the internal
control circuits and the current re-
quired to drive the IGBT gate.
Table 6.5 summarizes the typical
and maximum control power
supply current requirements for
Figure 6.30
Power Loss
Simulation of
PM75RVA1200 (Typ.)
Figure 6.31
Power Loss
Simulation of
PM100CVA120 (Typ.)
Figure 6.33
Power Loss
Simulation of
PM200DVA120 (Typ.)
Figure 6.34
Power Loss
Simulation of
PM300DVA120 (Typ.)
Figure 6.32
Power Loss
Simulation of
PM150CVA120 (Typ.)
0
15
30
45
90
75
60
0
I
O
(ARMS)
50
P
100
150
300
250
200
350
DC LOSS
SW LOSS
TOTAL LOSS
V
CC
= 600V
V
D
= 15V
T
j
= 125°C
P.F. = 0.8
fc = 10kHz
0
20
40 60
100
80
180
160
120 140
0
I
O
(ARMS)
50
P
100
150
300
250
200
350
DC LOSS
SW LOSS
TOTAL LOSS
V
CC
= 600V
V
D
= 15V
T
j
= 125°C
P.F. = 0.8
fc = 10kHz
0
20
40 60
100
80
180
160
120 140
0
I
O
(ARMS)
50
P
100
150
300
250
200
350
DC LOSS
SW LOSS
TOTAL LOSS
V
CC
= 600V
V
D
= 15V
T
j
= 125°C
P.F. = 0.8
fc = 10kHz
0
20
40 60
100
80
180
160
120 140
0
I
O
(ARMS)
50
P
100
150
300
250
200
350
DC LOSS
SW LOSS
TOTAL
LOSS
V
CC
= 600V
V
D
= 15V
T
j
= 125°C
P.F. = 0.8
fc = 10kHz
0
20
40 60
100
80
180
160
120 140
0
I
O
(ARMS)
50
P
100
150
300
250
200
350
DC LOSS
SW LOSS
TOTAL
LOSS
V
CC
= 600V
V
D
= 15V
T
j
= 125°C
P.F. = 0.8
fc = 10kHz
MITSUBISHI SEMICONDUCTORS POWER MODULES MOS
USING INTELLIGENT POWER MODULES