Application circuit – C&H Technology PS21997-4A User Manual
Page 6

PS21997-4, PS21997-4A
Intellimod™ Module
Dual In-line Intelligent Power Module
30 Amperes/600 Volts
Powerex, Inc., 173 Pavilion Lane, Youngwood, Pennsylvania 15697-1800 (724) 925-7272
5
10/09
+
C2
C1
C6
C5
+
AC LINE
DZ1
R1 D1
C2
C3
VUFB
UP
VWFB
VVFB
C4
VP1
VNC
UN
VN
WN
VN1
VP
WP
NC
VNC
CIN
FO
+15V
+3.3 to +5V
+VCC
LVIC
HVIC
+VCC
GATE DRIVE
UV PROT.
LEVEL
SHIFT
GATE DRIVE
UV PROT.
LEVEL
SHIFT
GATE DRIVE
UV PROT.
LEVEL
SHIFT
P
U
V
W
N
MOTOR
CONTR
OLLER
Component Selection:
Dsgn.
Typ. Value
Description
Notes:
G
ATE DRIVE
RSHUNT
This symbol indicates
connection to ground plane.
+
C2
C1 DZ1
R1 D1
+
+
C2
C1 DZ1
R1
R2
C4
R2
C4
R2
C2
DZ1
CSF
C4
C4
R2
C4
R2
R2
C4
R3
R2
RSF
D1
FAULT LOGIC
INPUT SIGNAL
CONDITIONING
UV
PROT.
OVER CURRENT
PROTECTION
D1
1A, 600V
Boot strap supply diode – Ultra fast recovery
DZ1
24V, 1.0W
Control and boot strap supply over voltage suppression
C1
10-100uF, 50V
Boot strap supply reservoir – Electrolytic, long life, low Impedance, 105°C (Note 5)
C2
0.22-2.0uF, 50V
Local decoupling/High frequency noise filters – Multilayer ceramic (Note 8)
C3
10-100uF, 50V
Control power supply filter – Electrolytic, long life, low Impedance, 105°C
C4
100pF, 50V
Optional Input signal noise filter – Multilayer ceramic (Note 1)
C5
200-2000uF, 450V
Main DC bus filter capacitor – Electrolytic, long life, high ripple current, 105°C
C6
0.1-0.22uF, 450V
Surge voltage suppression capacitor – Polyester/Polypropylene film (Note 9)
CSF
1000pF, 50V
Short circuit detection filter capacitor – Multilayer Ceramic (Note 6, Note 7)
RSF
1.8k ohm
Short circuit detection filter resistor (Note 6, Note 7)
RSHUNT
5-100mohm
Current sensing resistor – Non-inductive, temperature stable, tight tolerance (Note 10)
R1
10 ohm
Boot strap supply inrush limiting resistor (Note 5)
R2
330 ohm
Optional control input noise filter (Note 1, Note 2)
R3
10k ohm
Fault output signal pull-up resistor (Note 3)
1) To prevent input signal oscillations minimize wiring length to controller (~2cm). Additional RC filtering (C5 etc.) may be required.
If filtering is added be careful to maintain proper dead time and voltage levels. See application notes for details.
2) Internal HVIC provides high voltage level shifting allowing direct connection of all six driving signals to the controller.
3) FO output is an open collector type. Pull up resistor (R3) should be adjusted to current sink capability of the controller.
4) Use only one VNC Pin (either 9 or 16) and leave the other open.
5) Boot strap supply component values must be adjusted depending on the PWM frequency and technique.
6) Wiring length associated with RSHUNT, RSF, CSF must be minimized to avoid improper operation of the OC function.
7) RSF, CSF set over current protection trip time. Recommend time constant is 1.5µs-2.0µs. See application notes.
8) Local decoupling/high frequency filter capacitors must be connected as close as possible to the modules pins.
9) The length of the DC link wiring between C5, C6, the DIP’s P terminal and the shunt must be minimized to prevent excessive
transient voltages. In particular C6 should be mounted as close to the DIP as possible.
10) Use high quality, tight tolerance current sensing resistor. Connect resistor as close as possible to the DIP’s N terminal. Be careful
to check for proper power rating. See application notes for calculation of resistance value.
17
18
1
25
+
Application Circuit