LF: Re: Re: IGBT in 136 KHz TX?

["F6CWN" <f6cwn@orange.fr>]

Good night Markus and all,

 

Thank you for precision about IGBT. I thought that the rising generations of IGBT could help us to improve our equipment. In my job to use IGBT time to time but to 100 KHz maximum (For example HGTG20N60). IGBT has lower conduction losses and smaller die aera at equilalent power. We are going to wait for the next generations therefore!  :0)

 

Vy 73 Markus,

 

Jeff, F6CWN

 

 

 

----- Original Message -----

From: Markus Vester

To: rsgb_lf_group@blacksheep.org

Sent: Friday, June 26, 2009 8:05 PM

Subject: LF: Re: IGBT in 136 KHz TX?

Dear Jeff,

 

havn't actually tried it myself on 137 kHz. But from past experience I'd say that while IGBTs may have less DC loss, they are much slower (especially during turnoff). They can be used as effient switches at some tens of kHz, whereas MOSFETs will easily go up to several MHz.

 

Kind regards,

Markus, DF6NM

 

----- Original Message -----

From: F6CWN

To: rsgb_lf_group@blacksheep.org

Sent: Thursday, June 25, 2009 11:37 PM

Subject: LF: IGBT in 136 KHz TX?

Good night to all,

 

Anybody would have any experience on the use of IGBT in 136 KHz amplifiers?
Thanks in advance!

73: Jeff / F6CWN