Practice Concerns With Higher Supply Voltage (66.5.3) - Multi-Transistor Amplifiers : Amplifier With Active Load (Part A)

Practice: Concerns with Higher Supply Voltage

Lesson 66.5.3Multi-Transistor Amplifiers : Amplifier With Active Load (Part A)

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6 sample questions

Question 1.
Define what an active load is in amplifiers.
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Think about the components used to replace a passive load.
Question 2.
What does voltage gain represent?
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It is a measure of amplification capability.
3Question 3.
What is the function of an active load in amplifiers?
- To decrease power consumption
- To enhance voltage gain
- To regulate temperature
- To replace all passive components
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Consider why we would replace passive loads.
4Question 4.
True or False: Higher supply voltage always improves amplifier gain without consequences.
- True
- False
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Think about the trade-offs involved.
Question 5.
Design a common emitter amplifier circuit that demonstrates the effects of lower supply voltage on gain while using a higher valued resistor as an active load. Calculate the theoretical maximum gain.
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Calculate based on new resistor values.
Question 6.
Evaluate how changing the transconductance of a transistor affects the overall gain of a common source amplifier given a fixed load configuration.
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Relate to the multiplier effect of input characteristics.

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