Big amplifiers help

Discussion in 'Wireless & RF Design' started by Nwuyag, Sep 17, 2013.

  1. Nwuyag

    Thread Starter New Member

    Sep 12, 2013
    14
    0
    PLEASE, i dont know the basic difference between voltage amplifiers, power amplifiers, audio amplifiers, radio frequency amplifiers, small signal amplifiers, large signal amplifiers...:confused:
    i am in my 3rd year in electrical electronics engr in school and we dont do (or i dont understand) many practical but what i am doing on my own is small transistor projects after getting components i can buy, so if you break down the words you use a little, i will greatly appreciate it. any suggestion is also appreciated:(
     
  2. vk6zgo

    Active Member

    Jul 21, 2012
    677
    85
    If your course Text covers this,read it!
    If not,Google for all those things,

    OR

    Go to the local library & see if you can find a book on these subjects.
     
  3. Brownout

    Well-Known Member

    Jan 10, 2012
    2,375
    998
    voltage amplifier: Vout = AvVin
    power amplifier: Pout = ApPin
    audio amplifier: signal in, signal out are audio frequencies 20hz-20khz
    radio frequency amplifier: signal in, signal out are radio frequencies: > 20khz
    small signal amplifier: abstraction of an amplifier where signal is sufficiently small that the transfer function (vout/vin) can be considered linear.
    large signal amplifier: abstraction of an amplifier where signal is sufficiently large that the transfer function (vout/vin) can be considered nonlinear.
     
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