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how mobiles Vibrate ????

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mmohsen

mmohsen

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vibration in mobiles

can anyone tell me how the Vibration is generated in the Cellular phones.
and is there a circuit that is responsable for this criteria or it something related to the battery

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how vibrations produced in mobiles

It's a tiny motor with an unballanced load on its shaft. See here: **broken link removed**
 

    mmohsen

    mmohsen

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how to mobiles vibrate

The motor is usually driven from a simple MOSFET driver circuit, where the motor is put in series with a MOSFET with a protection diode. Look up the H-bridge this circuit is slightly more complicated but should show the general idea of how the motor is driven.
 

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