Hardware, Power Electronics, Topic

HOW TO PROTECT MOSFET OR IGBT FROM VOLTAGE SPIKE

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By Jackson Taylor

PROBLEM

I AM TRYING TO BUILD A FULL BRIDGE HIGH VOLTAGE 50 HzINVERTER (300V DC). WHEN SWITCH ON THIS MOSFET WILL DAMAGED.I HAVE RECTIFIED 230 V AC . used Fan7392 driver

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SOLUTIONS THAT I HAVE ADDED

MOV OF 320V ,20mm dia

MOV 320V

1uF polyester capacitor across dc 300v power supply bus

Capacitor

common mode choke- ferrite connected series with dc bus and inverted card

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Image result for common mode choke ferrite
  • uf4007 -fast recovery diode across ground and high side mosfet source in reverse bias
  • gate resistor of 100ohm (previously it was 10 )
  • 15v zenor across driver power supply
  • 1n4148 diode across gate resistor for fast turn off
  • 15v zenor across gate and source of mosfet
See also
17V-24V DC TO 48V DC BOOST CONVERTER WITH CLOSED LOOP CONTROL USING ARDUINO AND IGBT

H-BRIDGE USING RELAY SIMULATION

POWER CONTROL USING TRIAC AND ARDUINO

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