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I have attached the circuit of IGBT module. I didn't apply any signal to T1 and T2 . can you tell me what is T1 and T2 in this diagram.
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- Labels:
-
ispn:3572:1:0
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l1:144:1:0
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l2:219:1:0
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l3:238:1:0
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- IFX
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Hello @User270
Thanks for posting the question in Infineon community
The Gate driver is proving 15V PWM to IGBT still it is Turned ON then the below possible reasons would help for your design
1)Please check the connection for IGBT, Gate Driver and Gate resistor
2)The Current capability of Gate driver and Gate resistor value need be checked. proper gate resistor will give better results.
3)The proper PWMs for upper and IGBT, make sure same PWM cannot be provided
4)Please check your frequency of PWM also
5)Make sure your gate driver supply will provide enough current to Driver IC
Thanks
Guru Prasad
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- Mark as New
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Hello @User270
Thanks for posting the question in Infineon community
The Gate driver is proving 15V PWM to IGBT still it is Turned ON then the below possible reasons would help for your design
1)Please check the connection for IGBT, Gate Driver and Gate resistor
2)The Current capability of Gate driver and Gate resistor value need be checked. proper gate resistor will give better results.
3)The proper PWMs for upper and IGBT, make sure same PWM cannot be provided
4)Please check your frequency of PWM also
5)Make sure your gate driver supply will provide enough current to Driver IC
Thanks
Guru Prasad