Jump to content
Electronics-Lab.com Community

Driving IGBTs


Kain

Recommended Posts

I want to build an H-Bridge with IGBTs since I got quite some here and I'll be switching about 15A. Now, the low side of the H-Bridge is easy to drive since potential that appears on the gate is basically the same as Vge assuming that I connected E directly to GND. However the high side is a problem. I read that I can get the required Vge there with MOSFET/IGBT driver chip or a pulse transformer. I would like to use the driver chip but I don't quite understand the connections to it. I looked at ST web and the chip I like is TD352. As looking at the datasheet:

http://www.st.com/stonline/stappl/productcatalog/app?path=/comp/stcom/PcStComOnLineQuery.showresult&querytype=type=product$$view=table&querycriteria=RNP139=911.0

the way I understand it is that the Vh is 16V. However, is the GND the same as the GND on the picture or it is different? Basically as on the schematic here I am trying to pulse the Vcc which can be up to 80V, so I have 2 additional voltage levels - 16V and 5V with respect to GND up to 300mA used for control purposes. The IGBTs that I am using are IRGBC30MD2. Any suggestion is appreciated.  ;D

Link to comment
Share on other sites


Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
  • Create New...