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Drive Circuit for a Heating or Inductive Coil

This solution drives an external element whether it be a coil for heating, a wire for generating a magnetic field, or inductor to propel a motor. A microcontroller (MCU) sends a pulse width modulated signal to the gate driver that efficiently connects power to the driving element or removes the charge from it. A comparator and amplifiers are used to monitor current flow and trigger any overcurrent events. 

System Benefits

  • Improved drive efficiency 
  • Improved load drive control 
  • Achieves high bandwidth current measurement 
  • Fast (1µs) overcurrent safety detection 

Target Applications

  • Heating elements 
  • Driving motors 
  • Discrete DC/DC converters 
  • Perimeter fencing 
Drive Circuit for a Heating or Inductive Coil


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