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2 cards from this section. Quick, good the night before a test.
What is the output voltage when the input is 100 mV and the gain is 10?
Apply the formula: Output Voltage = Gain x Input Voltage.
Define the term 'voltage gain'.
Think about how much the input signal is amplified.
What is the effect of negative feedback on the voltage gain?
Think about how feedback helps control outputs.
True or False: An ideal feedback system has infinite input resistance.
Consider the ideal characteristics described in class.
In a feedback system with A = 250 and β = 0.05, calculate the new voltage gain if the input signal is 200 mV and derive the final output voltage.
Make sure to start from calculating the voltage gain first!
Discuss how altering β from 0.05 to 0.1 impacts the new output voltage and input/output resistances. Assume A remains constant.
Reference how we calculated resistances related to feedback factors.
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