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[ DC Servomotors ~ Mechanical Construction ~ Braking methods in servo-drive ~ Transistor PWM dc Converter ~ Driving, clockwise (CW), I quadrant ~ Braking, clockwise, IV quadrant ~ Advantages of transistor PWM dc drives over thyristor drives ~ Closed loop of control of DC motors ]
objectives: Describe the major constructional features of dc motors; Explain the principle of torque generation; Derive the dynamic speed response characteristics relating armature voltage, load torque and speed; Describe the realization of a variable voltage controlled source using switch mode power converters; Draw the block diagram a typical speed control loop for a separately excited dc motor;
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"Electrical Actuators: DC Motor Drives"
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