LAB_10_Exercises - LAB 10 Exercises Introduction to DC...

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LAB 10 Exercises Introduction to DC Motor Control Exercise 1: Controlling a DC motor ON/OFF Build the transistor circuit that we have made for the LED (use the TIP 121 transistor). This time replace the LED and the resistor by a motor. Connect the circuit to the lower digital port on ELVIS. Now, make the motor go on for 5 seconds and then off for 5 seconds. Exercise 2: Controlling the rotational speed of a motor using PWM In order to control the rotational speed of a motor, the PWM technique is frequently adopted. This exercise is aimed at creating a VI that implements the PWM technique in controlling the rotational speed of a DC motor. The figure below shows the block diagram and the front panel of your VI. The pulses generated by LabVIEW will be given out of CTR0_OUT.
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On NI ELVIS, you must connect your motor to a transistor circuit. CTR0_OUT should be connected to the resistor of the base of the transistor. Fix the frequency at about 12500 Hz. You should change your duty cycle to obtain different motor speeds.
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LAB_10_Exercises - LAB 10 Exercises Introduction to DC...

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