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Electronic Devices & CircuitsPower Devices

A MOSFET gate resistor is often added in switching circuits primarily to control?

  • AGate charge/discharge current and switching speed
  • BDC drain current independently of gate voltage
  • CSemiconductor band gap
  • DHeat-sink thermal resistance directly
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Correct Answer: A. Gate charge/discharge current and switching speed
Explanation: The MOSFET gate is capacitive. A series gate resistor limits charging/discharging current and helps control switching edge rate, ringing, and driver stress.
Reference: Standard power electronics: MOSFET gate drive
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