[Boatanchors] Calling Smart People: Class D Transmitter

[Bill Cromwell]

Hi Dave,

I haven't had enough coffee yet but I whizzed up a reciprocal for 7 
million cps and came up very close to 15 nanoseconds. Did I get the 
decimal in the wrong place in my early morning staggering stupor? This 
thing would be at the upper limit at the bottom of the 40 meter band?

There are people who use these power mosfets on the HF bands in those 
newer modes (new to hams) so it must be possible without blowing away 
the entire treasury. I am just getting ready to review the material I 
have and I just bought a few power mosfets to torture.

73,

Bill  KU8H



On 02/02/2015 07:37 AM, David Stinson wrote:
> (yes I promise it's boatanchor- working on a driver)
>
> Re: Driving the MOSFET Hi-C inputs.
>
> What do ya'll think of the new class of devices specifically
> designed to drive MOSFETs?
>
> Here's an example of one that can do 360 degrees in 15 ns and stay 
> "square" while driving a 3000 pFd load:
>
> http://cds.linear.com/docs/en/datasheet/4449fa.pdf
> ______________________________________________________________