Hi All, the principle is reducing the plate voltage and current by the same
percentage lowers the power input and output while retaining the same
plate load impedance.
For example, lowering the voltage to 70.7% and the current to 70.7% results
in a reduction of power input by 50% with no change in the plate load
impedance. The drive level has to adjusted of course.
73,
Gerald K5GW
In a message dated 7/21/2015 11:34:11 A.M. Central Daylight Time,
dezrat@outlook.com writes:
------------ ORIGINAL MESSAGE ------------(may be snipped)
On Tue, 21 Jul 2015 09:16:17 -0700, you wrote:
>Along the same vein as Colin, I have an adjustable 0-4kv, 0-2.5Amp SMPS.
It
>has a switch freq of 18 khz.
>
>Will this allow to change the Ep, and not retune?
>
>If so, why not use more often? Seems like an efficient way to go. Much
>lighter, and voltage regulation is <1%.
>
>What am I missing?
>
>Charlie N6CFH
REPLY:
Sounds good to me. Where does one get such a supply and what is the
cost?
Generally, if you change the Ep and increase the Ip to maintain the
same power, you should retune. Is that what you are asking?
73, Bill W6WRT
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|