PWM - Pulse Width Modulation for DC Motor Speed and LED Brightness 5
#PWM
#DC motor
#LED brightness
#speed control
#pulse width modulation
#motor driver
#analog control
#microcontroller
#Arduino
#power regulation
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Arduino sampling code and circuit schematic
The code implementation discussed in the previous post has been initiated. To improve organization, the code has been modularized into functions, simplifying the overall structure. It is available along with the other code. Challenges were encountered in calculating averages while...
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This circuit can control a small DC motor, like the one in a tape recorder. When both the points A & B are "HIGH" Q1 and Q2 are in saturation. Hence the bases of Q3 to Q6 are grounded. Hence...
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To reduce the resonant frequency and obtain useful signals, washers were placed on a bolt along with nuts for experimentation. An oscilloscope with FFT was utilized to adjust the weight at the tip of the film until frequencies around 40...
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Maze Robot
After completing the robot for the competition, updates to the blog were paused due to disappointment over not finishing the robot on time. An update on the progress made thus far is being provided. The motor driver was changed because...
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The circuit depicted in Figure 3-193 illustrates a separately excited DC motor. The brake circuit is not activated; therefore, positive reversals occur alternately using a delay action relay, ensuring that the motor reverses direction after coming to a stop.
The schematic...
Constant Speed PWM Motor Control
A constant speed motor control can be achieved using closed-loop (servo) control. A constant speed motor maintains a steady speed regardless of variations in load.
In a closed-loop control system, feedback is utilized to compare the actual speed of the motor...