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| 型号： | PM75RSK060 |
| 厂商： | Mitsubishi Electric Corporation |
| 英文描述： | 470UF 20% 35V RAD |
| 中文描述： | 用智能功率模块 |
| 文件页数： | 18/31页 |
| 文件大小： | 925K |
| 代理商： | PM75RSK060 |
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Sep.1998
the control circuits. An electrolytic
or tantalum decoupling capacitor
should be connected across the
control power supply at the IPMs
terminals. This capacitor will help
to filter common noise on the con-
trol power supply and provide the
high pulse currents required by the
IPMs internal gate drive circuits.
Isolated control power supplies can
be created using a variety of tech-
niques. Control power can be de-
rived from the main input line using
either a switching power supply
with multiple outputs or a line fre-
quency transformer with multiple
secondaries. Control power sup-
plies can also be derived from the
main logic power supply using DC-
to-DC converters. Using a compact
DC-to-DC converter for each iso-
lated supply can help to simplify
the interface circuit layout. A distrib-
uted DC-to-DC converter in which
a single oscillator is used to drive
several small isolation transformers
can provide the layout advantages
of separate DC-to-DC converters at
a lower cost.
In order to simplify the design of
the required isolated power sup-
plies, Mitsubishi has developed two
DC-to-DC converter modules to
work with the IPMs. The M57120L
is a high input voltage step down
converter. When supplied with 113
to 400VDC the M57120L will pro-
duce a regulated 20VDC output.
The 20VDC can then be connected
to the M57140-01 to produce four
isolated 15VDC outputs to power
the IPMs control circuits. The
M57140-01 can also be used as a
stand alone unit if 20VDC is avail-
able from another source such as
the main logic power supply. Figure
6.35 shows an isolated interface
circuit for a seven pack IPM using
M57140-01. Figure 6.36 shows a
complete high input voltage iso-
lated power supply circuit for a dual
type intelligent power module.
Caution:
Using bootstrap techniques is not
recommended because the voltage
ripple on VD may cause a false trip
of the undervoltage protection in
certain inverter PWM modes.
6.6.2 Interface Circuit Require-
ments
The IGBT power switches in the
IPM are controlled by a low level
input signal. The active low control
input will keep the power devices
off when it is held high. Typically
the input pin of the IPM is pulled
high with a resistor connected to
the positive side of the control
power supply. An ON signal is then
generated by pulling the control in-
put low. The fault output is an open
collector with its maximum sink cur-
rent internally limited. When a fault
condition occurs the open collector
device turns on allowing the fault
output to sink current from the posi-
tive side of the control supply. Fault
and on/off control signals are usu-
ally transferred to and from the sys-
tem controller using isolating inter-
face circuits. Isolating interfaces al-
low high and low side control sig-
nals to be referenced to a common
logic level. The isolation is usually
provided by optocouplers. How-
ever, fiber optics, pulse transform-
ers, or level shifting circuits could
be used. The most important con-
sideration in interface circuit design
is layout. Shielding and careful
routing of printed circuit wiring is
necessary in order to avoid cou-
pling of dv/dt noise into control cir-
cuits. Parasitic capacitance be-
tween high side
Table 6.6 V-Series IPM Control Power Supply Current
N Side
P Side (Each Supply)
DC
Max.
DC
20kHz
Typ.
20kHz
Typ.
Type Name
Typ.
Max
Max.
Typ.
Max.
600V Series
PM75RVA060
PM100CVA060
PM150CVA060
PM200CVA060
PM300CVA060
PM400DVA060
PM600DVA060
44
40
40
40
52
23
23
60
55
55
55
72
30
30
72
68
72
84
130
56
56
94
88
94
110
170
73
73
13
13
13
13
17
23
23
18
18
18
18
24
30
30
21
22
23
28
43
56
56
27
29
30
36
56
73
73
1200V SERIES
PM50RVA120
PM75CVA120
PM100CVA120
PM150CVA120
PM200DVA120
PM300DVA120
44
40
40
72
37
37
60
55
55
100
48
48
73
70
80
128
52
52
95
92
104
166
68
68
13
13
13
24
37
37
18
18
18
34
48
48
21
24
26
42
52
52
27
31
34
55
68
68
MITSUBISHI SEMICONDUCTORS POWER MODULES MOS
USING INTELLIGENT POWER MODULES
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