23.4.1. Voltage Amplifier vs. Current Amplifier

Try these first

1. 1.

   What is a voltage amplifier?

   Hint

   Think about what an amplifier's main function is.

2. 2.

   What is the purpose of DC biasing in a BJT?

   Hint

   Consider why initial conditions are necessary for operation.

3. 3.

   What is the primary function of a voltage amplifier?

   • Increase current
   • Increase voltage
   • Reduce noise

   Hint

   Focus on the role of voltage in amplification.

4. 4.

   The term 'loading effect' refers to:

   • True
   • False

   Hint

   Reflect on how connected devices impact an amplifier's operation.

5. 5.

   Design a circuit diagram for a current amplifier. Include at least one loading component and describe the implications of this loading on performance.

   Hint

   Focus on how currents bifurcate in the circuit.

6. 6.

   Given a data sheet with input/output specifications of current and voltage amplifiers, compare two models based on efficiency and application.

   Hint

   Think about practical applications in circuit design choices.