Replacing Obsolete IBGT Modules

Will this work..

http://www.ttnet.net/ttnet/gotoprd/ET199/999/0/94551303232383335333.htm

This one meets all of my necessary specifications and will be a very likely candidate if I cannot find one with a system simular to the intelisense on the old one or if a cheaper one that does the same thing as this one doesn't come along. Thank you you have been a big help .

Be careful with Chinese products of obsolete units. We received a lot of "original" IGBTs with "original" logo and date code which was a complete falsification.

Try googling for obsolete parts: if there are less or even no available in Europe or America but (ten-)thousands in different Chinese companies you can be sure you will be in trouble buying them.

Regards Uwe

All decent IGBT gate drivers provide undervoltage protection but combined low+high side drivers are rated up to ~600V so you'll have to use separate optically isolated drivers and extra, floating power supplies for each side. Things get really tricky when you want current sensing for overload or short protection. On this device current sensing is indegrated on each IGBT die. Next best way for this current range is by Hall sensors and isolated amplifiers (like Avago). But if you expect all that cirquitry on equivalent space and reliability to an intelisense device, do yourself a favour and just forget the whole thing. S.M.

Have you contacted Powerex directly or their local sales rep ?

I used to work in military electronics and when companies obsoleted an item, there was a decent chance that they had at least something which might work in your particular application. I'm sure they will have something nearly equivalent or know of a distributor who might have some stock on hand to suit your requirements.

Don't just accept their printed word that "this is now obsolete". Ask plenty of questions and push them for leads on (new old) stock that is collecting dust on some shelves out there.

Heck, they might be able to steer you to a competitor who has an equivalent.

I will try contacting them thanks.

I use Dynapower Corp out of Berlington Vermont. The Dynapower Corp are very well versed in building energy efficient equipment. Rectifiers, wind turbins, power drivers, and they are, IMO top of the pile here in the USA. Give them a call or look them up on the web.

Maximo

will do thanks.

Look at Infineon's IGBT paired with Concept gate drivers. They sell them as matched pairs that works very well. All the difficult details have been figured out by very competent people. They have 1200V and 1700V (and more) units at current going to 1000's Amps if you want.

http://www.infineon.com/cms/en/product/power-modules-and-discs/igbt-modules/igbt-modules-up-to-1600v/1700v/channel.html?channel=ff80808112ab681d0112ab69f04a0380

The concept gate driver has the standard protections for supply voltage, desaturation, shoot through...

The application over current limit is usually produced using a hall effect sensor such as a LEM, ABB, Allegro... and some comparators.

My company manufactures an interface board that connects to these IGBT drivers, provides the power supplies, interfaces with the temperature sensors (IGBT, heatsink) and the current sensor. Basically, the board supplies all you need to control the IGBT from a microcontroller or a PLC. It is intended for a three phase controller but can be configured differently. Just click on my name and send me a personnal message with your email if you are interested, I will respons to you.