Hi everybody:
FET's , per se, don't have any intrinsic time related effects.
On the other hand a CW wave is actually a 50% square wave, producing in
effect a 50% duty cycle.
This might indicate that some duty cycle limitation can exist for greater
than 50% situations. It was usually present on IRF switching power supply
devices, years back. you could actually melt the internal bonds when
operating them at maximum current for prolonged periods, especially the
source bonds.
Alex 4Z5KS
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of Fuqua, Bill L
Sent: Monday, August 22, 2011 6:35 AM
To: jeff millar; amps@contesting.com
Subject: Re: [Amps] MRFE6VP Datasheet
I have not looked very close at the data sheet but it did occur to me that
in some applications some devices require time to thermally or electrically
stabalize.
But, you may be right. I'll look closer.
73
bill wa4lav
________________________________________
From: amps-bounces@contesting.com [amps-bounces@contesting.com] On Behalf Of
jeff millar [wa1hco@wa1hco.net]
Sent: Sunday, August 21, 2011 9:24 PM
To: amps@contesting.com
Subject: Re: [Amps] MRFE6VP Datasheet
I think the pulse operation applies to the 60:1 VSWR specification.
Effectively, that gives a specification on how fast the control circuit need
to
operate.
jeff, wa1hco
On 08/21/2011 08:06 PM, Fuqua, Bill L wrote:
> If it will do 1200W average power CW it should do the same in pulsed
mode.
> The question is, why list both unless some application requires that
particular
> pulse specification. It could be that the product was targeted for that
application.
> And others (CW).
> 73
> Bill wa4lav
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