DESCRIPTION:

The MSK 4470 is a complete 3 Phase IGBT Bridge Brushless Motor Control System in a convenient isolated baseplate package. The hybrid 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 PWM’ng, 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 MSK 4470 has good thermal conductivity of the MOSFET’s due to isolated package design that allows direct heat sinking of the hybrid without insulators.

FEATURES:

• 500 Volt Motor Supply Voltage

• 10 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°/ 120° Phasing Selectable

TYPICAL APPLICATIONS

• 3 Phase Brushless DC Motor Control

• Servo Control

• Fin Actuator Control

• Gimbal Control

• AZ-EL Control