DESCRIPTION:

The MSK4370 is a complete 3 Phase IGBT Bridge Brushless Motor Control System in a convenient isolated baseplate package. The device is capable of 10 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 PWMing, the transistors are modulated in locked anti-phase (complementary) mode for the tightest control and the most bandwidth. Provisions for applying different compensation schemes are included. The MSK4370 has good thermal conductivity of the IGBTs due to a hermetic isolated package design that allows direct heat sinking of the device without insulators.

FEATURES:

? 500 Volt Motor Supply Voltage

? 10 Amp Output Switch Capability

? 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

? Hermetic Package Design for High Voltage Isolation Plus Good Thermal Transfer

? 60°/ 120o Phasing Selectable

? Contact MSK for MIL-PRF-38534 Qualification Status

TYPICAL APPLICATIONS

? 3 Phase Brushless DC Motor Control

? Servo Control

? Fin Actuator Control

? Gimbal Control

? AZ-EL Control