18-08-2014, 12:03 PM
Magnetic Levitation train works on the principle of repulsion of magnets. Permanent Magnets having North and South poles are placed below the train, side by side in a row. Similarly, coils are placed in a row over the entire length of the track. The driver IC BA6435 gives the supply to the coils. The Hall ICs are placed between the coils at certain intervals. It senses the polarity of the magnet over it. When power is switched ON, the Hall ICs senses the polarity of the respective magnets of the train over them and provides the corresponding signal to the driver IC. Accordingly, the driver IC gives the control signal to the coils to create the same polarity of the magnetic field in the coils below the train so that the train is repelled and moves ahead. Now the next magnet of the train having an opposite polarity will come over the Hall IC. The Hall IC will detect this change and will give the corresponding feedback to the driver IC and the entire procedure repeats
Magnetic Levitation train works on the principle of repulsion of magnets. Permanent Magnets having North and South poles are placed below the train, side by side in a row. Similarly, coils are placed in a row over the entire length of the track. The driver IC BA6435 gives the supply to the coils. The Hall ICs are placed between the coils at certain intervals. It senses the polarity of the magnet over it. When power is switched ON, the Hall ICs senses the polarity of the respective magnets of the train over them and provides the corresponding signal to the driver IC. Accordingly, the driver IC gives the control signal to the coils to create the same polarity of the magnetic field in the coils below the train so that the train is repelled and moves ahead. Now the next magnet of the train having an opposite polarity will come over the Hall IC. The Hall IC will detect this change and will give the corresponding feedback to the driver IC and the entire procedure repeats