Archive Eepn Com Cluster Common Eepn Images Articles 19123
Archive Eepn Com Cluster Common Eepn Images Articles 19123
Archive Eepn Com Cluster Common Eepn Images Articles 19123
Archive Eepn Com Cluster Common Eepn Images Articles 19123
Archive Eepn Com Cluster Common Eepn Images Articles 19123

Control Three-Phase Brushless DC Motors

Dec. 1, 1999

Providing electronic commutation and speed control for three-phase brushless dc motors, the 4-Q-EC four-quadrant controller maintains speed control whether accelerating or braking in CW or CCW directions. Commutation and velocity feedback is achieved using Hall-effect sensors and an encoder, respectively. Speed and direction is determined via an external signal voltage of ±10V or via a potentiometer. Additional inputs set current limits or disable power using TTL, CMOS or a switch signal. The output power stage uses MOSFET technology. Supply voltage is 12V to 50V, with a 4V drop at the motor. Maximum continuous current is 6A using an added heat sink. Controller dimensions are 103 x 70 x 39 mm including connector. The connector is removable so the controller can be directly mounted to PCBs. This unit is CE Marked for the European market.

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