[ARC5] Question for Smart People: IGBT Transistors

[Scott Johnson]

IGBT’s- all the gate capacitance of a MOSFET, and the Vsat drop of a bi-polar!

 

I guess they have their place in the 10HP and up world.

 

Scott V. Johnson W7SVJ

5111 E. Sharon Dr.

Scottsdale, AZ 85254-3636

H (602) 953-5779

C (480) 550-2358

 <mailto:scottjohnson1 at cox.net> scottjohnson1 at cox.net

 <mailto:scott.johnson at ieee.org> scott.johnson at ieee.org

 

From: ARC5 [mailto:arc5-bounces at mailman.qth.net] On Behalf Of Peter Gottlieb
Sent: Friday, April 28, 2017 5:12 PM
To: Fuqua, Bill L <wlfuqu00 at uky.edu>
Cc: boatanchors at mailman.qth.net; ARC-5 <arc5 at mailman.qth.net>
Subject: Re: [ARC5] Question for Smart People: IGBT Transistors

 

All parts have their limits and it is the responsibility of the engineer to understand those limits and keep the device operation sufficiently within those limits. I work with IGBTs which are hundreds of dollars each in quantity so really hate frying them!  As does my boss...

 

I call them surface mount parts. Ok maybe with 1/4 inch bolts, but still surface mount...

 

Peter


On Apr 28, 2017, at 2:27 PM, Fuqua, Bill L <wlfuqu00 at uky.edu <mailto:wlfuqu00 at uky.edu> > wrote:

  Had a tech that called them Insulated Gate Blowup Transistors.

Naturally, you need to read the specs carefully. 

73

 

Bill wa4lav

 


  _____  


From: ARC5 <arc5-bounces at mailman.qth.net <mailto:arc5-bounces at mailman.qth.net> > on behalf of David Stinson <arc5 at ix.netcom.com <mailto:arc5 at ix.netcom.com> >
Sent: Friday, April 28, 2017 12:05 PM
To: boatanchors at mailman.qth.net <mailto:boatanchors at mailman.qth.net> ; ARC-5
Subject: [ARC5] Question for Smart People: IGBT Transistors 

 

Question for Smart People:
One of the specifications for high voltage
IGBT Transistor (thank you, Mr. Harshman
and a letter is on the way) is Vce when the
the transistor is in saturation.  Typically
3 or 4 volts.   Sort of like the newer FETs that
have a very low on-state resistance.

Am I correct to infer that when the IGBT is
saturated "ON," that 4 Volts at Ice is all
the transistor needs to dissipate?
For instance, if sourcing an Amp through
the transistor, IxV = 4 Watts dissipation.

Thanks,
Dave S.

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