Solenoid driver

Probably one of best known methods of converting electrical energy into mechanical energy is the solenoid. They are incredibly versatile and extremely useful, with applications in robotics, automated factory equipment, paintball guns, electronic fuel injection systems and even chime doorbells. For example in the doorbell the magnetic field of a solenoid is used to move a metal piston to strike a tone bar when the button is pushed.

Block diagram

Design considerations

  • Schottky rectifier or PN rectifier for freewheeling and protection of inductive load
  • N-channel MOSFETs for switch pull-in and hold current

 

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