Practice Step 1: Core Principles Of Low Power Design (4.3) - Low Power Design Strategies and Techniques in Advanced Technologies

Practice: Step 1: Core Principles of Low Power Design

Lesson 4.3Low Power Design Strategies and Techniques in Advanced Technologies

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10 questions

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4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does reducing supply voltage do to dynamic power?
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Think about the mathematical relationship between voltage and power.
Question 2.
Name one technique to reduce switching activity.
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Consider ways to minimize data changes in circuits.
3Question 3.
What is the relationship between supply voltage (Vdd) and dynamic power?
- Dynamic power increases as Vdd decreases
- Dynamic power decreases as Vdd decreases
- Dynamic power is not affected by Vdd
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Remember the formula for dynamic power.
4Question 4.
True or False: Reducing the supply voltage adversely affects noise margins.
- True
- False
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Consider the consequences of lower voltage.
Question 5.
Given a circuit that reduces Vdd from 1V to 0.5V, calculate the percentage decrease in dynamic power.
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Use the formula P = C * V².
Question 6.
Evaluate the effectiveness of clock gating in a circuit where 4 out of 10 functional blocks are idle 70% of the time.
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Consider how reducing unnecessary switching helps overall energy savings.

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