Mosfet gate drive resistance calculation.

Announcements

Live Webinar: Solving the challenges in xEV power conversions | March 7 @9am & 5pm CET. Register now!

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
Sachin_alu
Level 1
Level 1
First reply posted First question asked Welcome!

Hello infineon support 

Am looking for basic understanding on how to calculate the mosfet gate resistance. I found the design link here but it doesn't tell the calculation on how to design. 

Can you please help 

Thank you. 

0 Likes
1 Solution
Meghana
Moderator
Moderator
Moderator
50 likes received 100 solutions authored 10 likes given

Hello Sachin,

Please refer to the below application note to understand the details of the gate resistor design. 

https://www.infineon.com/dgdl/Infineon-EiceDRIVER-Gate_resistor_for_power_devices-ApplicationNotes-v...

Kindly reach out to us if you have further questions related to this topic. 

Regards

Meghana R

 

View solution in original post

0 Likes
3 Replies
Meghana
Moderator
Moderator
Moderator
50 likes received 100 solutions authored 10 likes given

Hello Sachin,

Please refer to the below application note to understand the details of the gate resistor design. 

https://www.infineon.com/dgdl/Infineon-EiceDRIVER-Gate_resistor_for_power_devices-ApplicationNotes-v...

Kindly reach out to us if you have further questions related to this topic. 

Regards

Meghana R

 

0 Likes
Sachin_alu
Level 1
Level 1
First reply posted First question asked Welcome!

Still the calculation is missing in the link you shared, what is the formula ,  criteria, what value should I use, for 200khz what R should I use,

Am looking for some direct calculation, 

You explain me. there are so many links available in the internet. You share me the important points from the link you shared randomly as i dont see that is useful. 

0 Likes
Meghana
Moderator
Moderator
Moderator
50 likes received 100 solutions authored 10 likes given

Hello @Sachin_alu ,

Can you please let me know which Infineon switching device and the device driver you are using. I can explain the summary of the gate resistance selection with those devices as an example. 

Regards

Meghana R

0 Likes