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Advanced ON/OFF Analog Controller for DC Motors Using an L298N H-Bridge System

This project details the design and implementation of an ON/OFF analog control system for DC motors utilizing an L298N H-Bridge. It combines several subsystems, including a window comparator and feedback mechanisms, ensuring precise motor control based on window height input. Key components include operational amplifiers (LM324), a window maker subsystem for height adjustment, and a 10-turn potentiometer for fine-tuning the set point. The integration of mechanical linkages enhances performance, making it ideal for automation and robotics applications.

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Advanced ON/OFF Analog Controller for DC Motors Using an L298N H-Bridge System

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Presentation Transcript

  1. Electrical Engineering – ELCT 201 ELCT 201ON/OFF Analog Controller

  2. Subsystem 1 Subsystem 2 Subsystem 3 Window Maker Window Comparator H Bridge (L298n) and DC Motor U.L. Forward Reverse L.L. SP =Vin 2 Feedback Vin 1 Dead Band (Window height) Mechanical Linkage ON/OFF Analog Control System (Using op amps and a H Bridge)

  3. Vin 1 10K Window height Trim pot 10K Window Maker (Subsystem 1) 100K 100K Vout 1 = Vin 2 – Vin 1 LM324 100K L.L. (Lower Limit) 100K Set Point =Vin 2 Window position 10 Turn pot Vout 2 = Vin 2 LM324 U.L. (Upper Limit)

  4. U.L. LM324 FEEDBACK 10 turn 10K L.L. LM324 Window Comparator (Subsystem 2) Forward Feedback Signal Reverse

  5. 10K FEEDBACK Forward Reverse 10 turn Reverse Forward H Bridge (L298n) and DC Motor (Subsystem 3) Mechanical Linkage

  6. L298N Half Package Vs 14 C D 10 13 12 Vss 4 3 4 ½ L298N Ven 11 15 8

  7. L298N Half Package Vs 100nF 100nF 14 C D 10 13 12 Vss 4 3 4 ½ L298N Ven 11 15 8

  8. Control Lines

  9. L298n

  10. L298n pinout

  11. L298n

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