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 Image result SOLUTIONS THAT I HAVE ADDED  MOV OF 320V ,20mm dia  1uF polyester capacitor across dc 300v power supply bus common mode choke- ferrite  connected series with dc bus and inverted card 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
POWER CONTROL USING IGBT (6KW)

H-BRIDGE USING RELAY SIMULATION

POWER CONTROL USING TRIAC AND ARDUINO