6.5.2 - Power Consumption
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Practice Questions
Test your understanding with targeted questions
What is static power consumption in CMOS?
💡 Hint: Think about when the circuit is not actively changing state.
What does dynamic power consumption depend on?
💡 Hint: Remember the formula P=αCV²f.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for dynamic power consumption in CMOS?
💡 Hint: Remember the terms we correlated with each variable.
True or False: Static power consumption in a CMOS circuit is usually higher than dynamic power consumption.
💡 Hint: Consider when each type of power consumption occurs.
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Challenge Problems
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Consider a CMOS device with a capacitance of 10pF, operating at 2V, and switching at a frequency of 500kHz with a switching activity of 0.5. Calculate its dynamic power consumption.
💡 Hint: Follow the formula closely and make sure to calculate in the correct units.
How would the dynamic power consumption change if the switching frequency of the circuit is increased to 1 MHz while keeping everything else constant? Explain.
💡 Hint: Look closely at the factors within the dynamic power formula.
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