38.1. Frequency Response of CE and CS Amplifiers (Contd.) (Part A)

Try these first

1. 1.

   What is the function of a coupling capacitor in an amplifier circuit?

   Hint

   Think about the types of signals we want to amplify.

2. 2.

   Define the term 'cut-off frequency' in the context of amplifiers.

   Hint

   Look for a threshold in a frequency response.

3. 3.

   What does a coupling capacitor do in an amplifier circuit?

   • Blocks AC signals
   • Allows DC signals
   • Blocks DC signals

   Hint

   Consider what types of signals the amplifier is designed to work with.

4. 4.

   True or False: The cut-off frequency is the point at which amplification is maximized.

   • True
   • False

   Hint

   Refer to the definition of cut-off frequency.

5. 5.

   You are designing a CE amplifier with a desired lower cut-off frequency of 100 Hz and an upper cut-off frequency of 10 kHz. How would you determine the values for the capacitors in the circuit?

   Hint

   Think about the relationships between frequency and the values of your capacitors.

6. 6.

   Analyze a given self-biased CE amplifier circuit diagram and calculate its voltage gain, given specific resistor values.

   Hint

   Make sure to identify what R_out and R_in are in the circuit.