Warning: Creating default object from empty value in /homepages/11/d132647312/htdocs/Amfone/mkportal/include/SMF/smf_out.php on line 47
New RF FET




 
The AM Forum
September 18, 2019, 08:45:16 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Calendar Links Staff List Gallery Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: New RF FET  (Read 712 times)
0 Members and 1 Guest are viewing this topic.
VE3ELQ
Contributing
Member
*
Offline Offline

Posts: 258


« on: May 20, 2019, 08:28:25 AM »

ART2K0FE by Ampleon coming soon to a store near you. At 65V Vdd should be good for about 1.5KW clean PEP in linear service. Cant find any specs yet. Think I see another Linear amp project ahead.

https://www.ampleon.com/news/press-releases/ampleon-announces-the-industry-s-most-rugged-2kw-rf-power-ldmos-transistor-for-ism-applications.html

73s  Nigel
Logged

A "Tube Free" zone.
w4bfs
W4 Beans For Supper
Contributing
Member
*
Offline Offline

Posts: 1284


more inpoot often yields more outpoot


« Reply #1 on: May 20, 2019, 10:46:25 AM »

nigel ... what type of topology would you use with a device of this power level ?   would it still be push pull or is single ended feasible ?   73  John
Logged

Beefus

O would some power the gift give us
to see ourselves as others see us.
It would from many blunders free us.         Robert Burns
VE3ELQ
Contributing
Member
*
Offline Offline

Posts: 258


« Reply #2 on: May 20, 2019, 11:06:13 AM »

nigel ... what type of topology would you use with a device of this power level ?   would it still be push pull or is single ended feasible ?   73  John

John, 
About 4 years ago I built a 50V Linear amp using a single BLF188XR dual FET from schematics I found in the net with a few mods of my own.  Its classic push pull with a bifilar choke on the drains feeding a ferrite 1:3 turns OP transformer.  It worked great, nice and clean to about 850W PEP with my ANAN 10 exciter especially with Adaptive Pre-Disortion enabled. So I quickly built a second one using two BLF188s in a near identical circuit but with a 1:4 ratio OP transformer.  It makes nice clean 1.6KW PEP and is still in use when I get the occasional urge to run SSB.  This new FET looks to be even better at 65V for higher efficiency.  Never tried single ended, probably have very high F2 harmonic hard to low pass filter. I think push pull would be best.  Think a 3rd amp may be in my future.   Grin

73s  Nigel
Logged

A "Tube Free" zone.
WD5JKO
Member

Offline Offline

Posts: 1765


WD5JKO


« Reply #3 on: May 21, 2019, 07:14:14 AM »



This just came out in EDN today:

"Rugged 2-kW RF Power LDMOS Transistor for ISM Apps
Ampleonís transistor offers a frequency response of 0 to 650 MHz in an air-cavity ceramic package."



https://tinyurl.com/y2wedtsj

OR

https://www.electronicdesign.com/power/rugged-2-kw-rf-power-ldmos-transistor-ism-apps?NL=ED-001&Issue=ED-001_20190521_ED-001_451&sfvc4enews=42&cl=article_2_b&utm_rid=CPG05000000131357&utm_campaign=25681&utm_medium=email&elq2=d503c368beeb4f78bac2fb06026cb3ec&oly_enc_id=7566A7103945E5R

Jim
Wd5JKO
Logged
W1RKW
Contributing
Member
*
Offline Offline

Posts: 4156



« Reply #4 on: May 21, 2019, 04:41:57 PM »

this appeared on EHam a month or so ago:

https://www.eham.net/articles/42414

Author talks about a 1.2KW LDMOSFET from the same manufacturer and a homebrew amplifier . 
Logged

Bob
W1RKW
Home of GORT. A buddy of mine named the 813 rig GORT.
His fear was when I turned it on for the first time life on earth would come to a stand still.
Pages: [1]   Go Up
  Print  
 
Jump to:  

AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
 AMfone © 2001-2015
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Page created in 0.035 seconds with 18 queries.