Title :
A brushless DC motor controller with current-loop control
Author_Institution :
Changchun Inst. of Opt., Fine Mech. & Phys., Changchun, China
Abstract :
This paper presents a brushless DC motor controller with current loop control. The controller applies a complementary PWM modulation scheme to the power MOSFET. The current processor employed by the controller could detect the current flow through the motor windings accurately and convert the current to a voltage input to the error amplifier. The controller has 100% duty cycle high side conduction capability and "real" four quadrant torque control capability. It is able to implement a tight torque control for a DC brushless motor to satisfy the need of some servo system which calls for high bandwidth and raid dynamic response.
Keywords :
amplifiers; brushless DC motors; electric current control; machine control; power MOSFET; pulse width modulation; PWM modulation scheme; brushless DC motor controller; current-loop control; error amplifier; motor windings; power MOSFET; quadrant torque control; servo system; Brushless DC motors; Logic gates; Pulse width modulation; Torque; Windings; DC brushless motor; complementary PWM; current loop control; four quadrant torque control;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2011 International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4244-8162-0
DOI :
10.1109/ICECENG.2011.6057861
