EMC Optimized MOSFET Driver

Goals

  • Analysis of current source output stages in bridge drivers
  • Investigation of gate control methods for low EMC noise
  • Circuit development for fast gate control

Motivation

Many new gate drivers employ current source output stages

  • Better EMC behavior expected
  • Cost and area reduction in filter circuits
  • Smaller or no gate resistor required
  • Driving strength can be adjusted in the field even while the application is running