50.1.2. Output Terminal and Current Calculation

Try these first

1. 1.

   What does 'unloaded condition' mean in the context of amplifiers?

   Hint

   Think about how this affects current measurements.

2. 2.

   Define current gain in your own words.

   Hint

   Consider its significance in amplifier performance.

3. 3.

   What is the primary purpose of the unloaded condition in amplifier analysis?

   • To increase the input voltage.
   • To ensure accurate output current measurement.
   • To reduce the power consumption.

   Hint

   Remember what happens to the output when it's grounded.

4. 4.

   True or False: The current gain (α) of a transistor is always greater than 1.

   • True
   • False

   Hint

   Reflect on the definitions of current gains in different configurations.

5. 5.

   Design a common base amplifier circuit to achieve a current gain of approximately 0.9 with given input parameters. Explain your choices.

   Hint

   Consider standard values and the relationship of components to achieve the target gain.

6. 6.

   Analyze an existing amplifier design and propose modifications to improve its current gain without increasing complexity.

   Hint

   Look closely at the biasing resistances and the configurations in use.