PHY - Voltage amplifier stages having the characteristics
Question # 00018693
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Updated on: 06/29/2014 01:44 AM Due on: 06/29/2014
Problem B.1 Design
Voltage amplifier stages having the characteristics show in the following table are available. The signal source has an open-circuit voltage of 20mV rms and an internal resistance of 2M?. The load is a 20?resistance. Design a cascade amplifier using smallest number of stages that provides at least 1 W to the load. What are the values of the input resistance, the output resistance and the open-circuit voltage gain of your amplifier?
Amplifier stage type |
Open circuit Voltage gain |
Input Resistance |
Output Resistance |
A |
1 |
10 M? |
1 k? |
B |
5 |
1 k? |
1 ? |
C |
10 |
20 k? |
100 ? |
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Rating:
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Solution: PHY - Voltage amplifier stages having the characteristics