23.4.4. DC Blocking Capacitors in Current Amplifiers

Try these first

1. 1.

   What is the role of a DC blocking capacitor in a current amplifier?

   Hint

   Think about how DC affects circuit behavior.

2. 2.

   Describe a current amplifier in one sentence.

   Hint

   Focus on input-output relationships.

3. 3.

   What does a DC blocking capacitor do in a current amplifier?

   • Blocks all signals
   • Allows AC
   • blocks DC
   • Enhances DC
   • No role at all

   Hint

   Focus on the roles of capacitors.

4. 4.

   True or False: The output current of a current amplifier is only the AC component.

   • True
   • False

   Hint

   Consider what DC blocking capacitors do.

5. 5.

   Design a simple current amplifier circuit that includes a BJT and a DC blocking capacitor. Explain how you would ensure the DC levels do not interfere with the output.

   Hint

   Consider how biasing impacts circuit functionality.

6. 6.

   Given a current amplifier with an unloaded current gain of 10 and a source current of 2 mA, what would be the output current if connected to a load resistance?

   Hint

   Use current division principles here.