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cw vs pulsed power

Discussion in 'Electronic Basics' started by Pat, Feb 21, 2007.

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  1. Pat

    Pat Guest

    Could someone explain to me if there is a rule of thumb to determine
    the peak pulsed power of an (linear class a/b) RF amplifier if the
    peak cw power is known. For instance,
    if the amp is rated 300W (max power) in cw mode, the max power in
    pulsed mode is definitely higher, and surely depends on the pulse
    width (e.g. could be 1 kW for a 10us pulse). Is there a rough rule of
    thumb to figure this out without having to test it directly and risk
    blowing up the amp? The amp design is based on the RF power mosfet
    MRF151G (the tech specs do not say anything about pulsed mode
    ratings). thanks.
     
  2. Phil Allison

    Phil Allison Guest

    "Pat" <



    ** Lemme tell ya son - you are on the WRONG newsgroup.

    Electronics basics = ohms law and other beginner stuff.

    Try " sci.electronics design " or one of the " alt.ham-radio " groups.

    I'm sure those guys could do with a good belly laugh.





    ........ Phil
     
  3. Don Bowey

    Don Bowey Guest

    CW mode for a tube would mean it is operating in Class C, not a linear mode.
    Your question makes no sense.

    Don
     
  4. Phil Allison

    Phil Allison Guest

    "Don Bowey"
    "Pat"

    ** The OP told just you it was a mosfet RF amp, a dual mosfet in fact, that
    operates in class AB.

    How much clearer can it get?


    ** No - your reply is senseless.



    ........ Phil
     
  5. Don Bowey

    Don Bowey Guest

    Are you also cross-eyed or dyslectic?
     
  6. Phil Allison

    Phil Allison Guest

    "Don Bowey"
    "Pat"

    ** The OP told just you it was a mosfet RF amp, a dual mosfet in fact, that
    operates in class AB.

    How much clearer can it get?


    ** No - your reply is senseless.




    ........ Phil
     
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