MSK4367_15 Datasheet, PDF (1/10 Pages) M.S. Kennedy Corporation – 38 Volt Maximum Operating Supply Voltage

MIL-PRF-38534 AND 38535 CERTIFIED FACILITY
M.S.KENNEDY CORP.
4367 ^{10 AMP, 38V, 3 PHASE}
MOSFET DC BRUSHLESS
DIGITAL MOTOR CONTROLLER
4707 Dey Road Liverpool, N.Y. 13088
FEATURES:
[phone]
38 Volt Maximum Operating Supply Voltage
55 Volt Absolute Maximum Output Switch Capability
10 Amp Continuous Output Switch Capability
Full Motor Supply Voltage Output Drive Capability
Shoot-Through / Cross Conduction Protection
Sinusoidal Field Oriented Control of Torque or Speed
Incremental Encoder with Index Input Determines Motor Shaft Angle
CAN Bus Digital Communication
Field Programmable Control Parameters Through CAN Stored in EEPROM
Isolated Package Design for High Voltage Isolation Plus Good Thermal Transfer
Contact MSK for MIL-PRF-38534 Qualification Status
DESCRIPTION:
The MSK 4367 is a completely digitally controlled 3 Phase Brushless DC Motor Control Torque or Speed Controller. The
controller is non-input/output isolated, meaning that the grounds between the digital input and the motor control output are
common. It is constructed in a convenient electrically isolated hermetic package. The controller is capable of 10 amps
continuous output current with 55V absolute maximum rated voltage MOSFETs, allowing 38V of maximum motor supply
voltage. Bridge protection features, such as shoot-through and cross conduction protection are provided redundantly by
the gate driver circuitry even though the processor is programmed with sufficient dead time such that shoot-through /
cross conduction will not occur. The digital signal processor controls torque or speed by Field Oriented Control (FOC) of
sinewave output to the motor windings. The processor uses an incremental encoder with index input from the motor
output shaft to track mechanical shaft angle. Internal current sensing measures and controls current in a closed loop
control scheme using FOC to control the current to the motor which is proportional to torque. The controller can also
control speed in a closed loop control scheme by using FOC and utilizes the encoder as the speed feedback element. All
control is accomplished using CAN bus for all communication for command, control and parametric information input. This
eliminates the need for D-A and A-D conversion from the host controller. Current / speed commands, monitoring and all
parametric set up values are input using CAN. Parametric set up values and CAN addressing are all stored in on-board
EEPROM. The MSK 4367 has good thermal conductivity for MOSFET output stage power dissipation due to the electrically
floating and isolated package design that allows direct heatsinking without insulators.
BLOCK DIAGRAM
1
8548-100 Rev. C 3/13