• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Igbt voltage regulator?

Status
Not open for further replies.

fernando58

New Member
Hello to all in the forum, anybody has a schematic of a voltage regulator using an igbt? Im trying to build a variable voltage regulator from two 12v batteries in series 24vdc to regulate it to 16-18vdc. I have seen it done with IGBT’S but can’t find any schematics for it. Thanks
 

tcmtech

Banned
Most Helpful Member
Look for a mosfet based schematic then put a IGBT in the power mosfets place. They both work on the same voltage controlled gate principle and in many lower frequency applications are directly interchangeable.
 

tomizett

Active Member
If you do want to use IGBTs then I think you're best to follow the advice in #2 - they should behave just like MOSFETs in this application.

Could you clarify, though, that you are talking about a linear reglator not a swiching buck converter? Just to make sure we're all on the same page.

If you are talking about a linear design then the limit on the current capability of the regulator is likely to be set by how well you can get heat away from the pass devices (IGBT, MOS, BJT etc), so I'm not sure that an IGBT really offers much advantage. You might be able to get several NPN BJTs for the price of a big IGBT, and I think that it might prove rather easier to design a good regulator using BJTs.

Don't let me put you off IGBTs if that's what you want to do, and if it's a switching converter then ignore what I've just said.
 
Status
Not open for further replies.

Latest threads

EE World Online Articles

Loading
Top