Voltage Gain Calculation for 2-Stage Amplifier

  • Thread starter BigMan52
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    Amplifier
In summary, the conversation discusses calculating the voltage gain for each stage and the overall voltage gain. The first stage has a gain of -1.5 and the second stage has a gain of -1.55. When multiplied together, the overall gain is 2.34. The method used is Vout/Vin = (Vout/Vx) * (Vx/Vin). It is suggested to add the gains in decibels.
  • #1
BigMan52
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Homework Statement


Calculate the voltage gain for each stage and the overall voltage gain.

Homework Equations


Ao (Gain) = - Rf/R1
3. The Attempt at a Solution [/B]
For the first stage I got:
Gain = - 15/10 = - 1.5
For stage 2 I got:
Gain = -5.13.3 = -1.55
Multiplying the 2 together to get an overall positive gain of -1.5 x -1.55 = 2.34
 

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  • #2
Any question?
 
  • #3
Is this the correct method and answer?
 
  • #4
Do I multiply or add the voltage gains for each step?
 
  • #5
Vout/Vin=(Vout/Vx)*(Vx/Vin).
Sounds logical, doese it not?
 
  • #6
Thank you, yes it does...
 
  • #7
BigMan52 said:
Do I multiply or add the voltage gains for each step?
You can add if you go dB's.
Meantime, go with post 5.
 
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Likes BigMan52
  • #8
Thank you very much!
 

What is a 2 stage amplifier?

A 2 stage amplifier is an electronic circuit that amplifies a weak signal using two stages of amplification. Each stage consists of a transistor or other amplifying device that increases the strength of the input signal.

What are the advantages of using a 2 stage amplifier?

There are several advantages of using a 2 stage amplifier. First, it allows for greater amplification of the input signal, resulting in a stronger output signal. Additionally, using two stages can improve the overall performance and stability of the amplifier.

How does a 2 stage amplifier work?

In the first stage, the input signal is amplified by a small amount. This amplified signal is then fed into the second stage, where it is further amplified. The output of the second stage is the final amplified signal.

What are the key components of a 2 stage amplifier?

The key components of a 2 stage amplifier include transistors or other amplifying devices, resistors, capacitors, and power supply. These components work together to amplify the input signal and produce a stronger output signal.

What are some common applications of a 2 stage amplifier?

A 2 stage amplifier is commonly used in audio systems, such as in car stereos or home theater systems. It is also used in communication systems, such as in cell phones and radios. In addition, it can be found in medical equipment, scientific instruments, and many other electronic devices.

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