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 PSS analysis Vs Transient Simulation 

Last post Fri, Apr 6 2012 1:15 PM by saurabh3488. 3 replies.
Started by saurabh3488 27 Mar 2012 04:48 AM. Topic has 3 replies and 3390 views
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  • Tue, Mar 27 2012 4:48 AM

    PSS analysis Vs Transient Simulation Reply

    hiiiiii

     I have designed a Push pull power amplifer to deliverd a 500uwatt power to 50 ohm antenna.

    the problem what i ma facing is that- when i am doing transient simulation and plotting the power at 50 ohm load i am getting 500uwatt power but when i am doing PSS analysis and plotting the output power it is showing 250uWatt. why this is so..

    and what analysis should i do for efficiency and power added efficiency calculation.

     

    Thankyou.. 

    • Post Points: 20
  • Thu, Mar 29 2012 10:48 AM

    Re: PSS analysis Vs Transient Simulation Reply

    Not really enough information to go on.

    How are you plotting the power in each case? What exactly is your analysis setup? A few pictures would help.

    Andrew.

    • Post Points: 20
  • Thu, Apr 5 2012 3:05 AM

    Re: PSS analysis Vs Transient Simulation Reply

    hiiiiiii 

     

    I have to design a CLASS B push pull power amplifer. for the operating frequncy = 402 MHz, it should able to transfer 500uwatt power to 50 antenna.  i am using Vdd =1.8V

     using calculation i got RL=810 ohm.

    i.e RL = Vdd ^2 /8*Pout = 810 Ohm. so i need a matching networt that can see 810 ohm from 50 ohm antenna. i am using Tapped Capacitor resonator, the values i got L = 2.393nH , C1 87.139pF , C2 = 263.59pF.

    The design is atteched in figure. the think i need to know is

    how to choose the value of coupling Capacitor Cdc as show in fig .

    and also Cc and Rbias

    class B push pill 

     Thank you. 

    • Post Points: 5
  • Fri, Apr 6 2012 1:15 PM

    class B push pull power amplifier design Reply
    hiiiiiii 

    I have to design a CLASS B push pull power amplifer. for the operating frequncy = 402 MHz, it should able to transfer 500uwatt power to 50 antenna.  i am using Vdd =1.8V

     using calculation i got RL=810 ohm.

    i.e RL = Vdd ^2 /8*Pout = 810 Ohm. so i need a matching networt that can see 810 ohm from 50 ohm antenna. i am using Tapped Capacitor resonator, the values i got L = 2.393nH , C1 87.139pF , C2 = 263.59pF.

    The design is atteched in figure. the think i need to know is

    how to choose the value of coupling Capacitor Cdc as show in fig .
    and also Cc and Rbias

    class B push pull
    Thank you.
    • Post Points: 5
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Started by saurabh3488 at 27 Mar 2012 04:48 AM. Topic has 3 replies.