ISO 9001 CERTIFIED BY DSCC
M.S.KENNEDY CORP.
4707 Dey Road Liverpool, N.Y. 13088
30 AMP, 500V, 3 PHASE
IGBT BRUSHLESS
MOTOR CONTROLLER
4371
(315) 701-6751
FEATURES:
500 Volt Motor Supply Voltage Capable, Designed for 270V Operation
30 Amp Output Switch Capability
100% Duty Cycle High Side Conduction Capable
Shoot-Through/Cross Conduction Protection
Hall Sensing and Commutation Circuitry on Board
"Real" Four Quadrant Torque Control Capability
Good Accuracy Around the Null Torque Point
Isolated Package Design for High Voltage Isolation Plus Good Thermal Transfer
60°/ 120º Phasing Selectable
MIL-PRF-38534 QUALIFIED
DESCRIPTION:
The MSK 4371 is a complete 3 Phase IGBT Bridge Brushless Motor Control System in a convenient isolated
hermetic package. The hybrid is capable of 30 amps of output current and 500 volts of DC bus voltage. It has the
normal features for protecting the bridge. Included is all the bridge drive circuitry, hall sensing circuitry, commutation
circuitry and all the current sensing and analog circuitry necessary for closed loop current mode (torque) control.
When PWM'ing, the transistors are modulated in locked anti-phase mode for the tightest control and the most
bandwidth. Provisions for applying different compensation schemes are included. The MSK 4371 has good thermal
conductivity of the IGBT's due to isolated package design that allows direct heat sinking of the hybrid without
insulators.
BLOCK DIAGRAM
TYPICAL APPLICATIONS
3 Phase Brushless DC Motor Control
Servo Control
Fin Actuator Control
Gimbal Control
AZ-EL Control
1
2
3
4
5
6
7
8
9
10
11
12
REFOUT
HALL A
HALL B
HALL C
60 /120
BRAKE
CLOCK SYNC
DIS
GND
N/C
N/C
E/A OUT
1
PIN-OUT INFORMATION
13
14
15
16
17
18
19
20
21
22
23
24
E/A -
GND
+Current Command
-Current Command
+15 VIN
Current Monitor Out
-15 VIN
N/C
N/C
N/C
GND
N/C
25 N/C
26 LGND
27 RTN
28 RTN
29 CVS
30 CVS
31 CØ
32 CØ
33 CV+
34 BVS
35 BVS
36 BØ
37
38
39
40
41
42
43
BØ
BV+
AVS
AVS
AØ
AØ
AV+
PRELIMINARY Rev. A 6/00
MSK [ M.S. KENNEDY CORPORATION ]
