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Power Management in Mobile Devices
book

Power Management in Mobile Devices

by Findlay Shearer
April 2011
Intermediate to advanced content levelIntermediate to advanced
336 pages
13h 59m
English
Newnes
Content preview from Power Management in Mobile Devices
45
www.newnespress.com
Hierarchical View of Energy Conservation
F Switching frequency
a Switching activity
Switched capacitance is the primary source of dynamic power consumption and arises
from charging and discharging of capacitors. Given the formula above there are 4 ways to
reduce dynamic power consumption. These are discussed in subsequent chapters.
P (short-circuit) V * l short-circuit
P (short-circuit) Crow-bar or transition current occurs when both the N channel and
P channel are simultaneous active during switching creating a temporary short-circuit.
Static power DC power
P (static) V * l leakage
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Publisher Resources

ISBN: 9780750679589