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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
42
www.newnespress.com
Chapter 2
Following the fi
gure for specifi c cellular technologies, Figure 2.3 shows specifi cally
when, during the operation of a mobile handset, power is consumed:
1. Turn power on – keypad and LCD backlights go on – search for network – welcome.
2. Keypad backlights go off – display goes dark.
3. Display goes on but keypad backlights stay off.
4. Display goes blank.
5. Close ip – external display backlight on.
2.2 Power versus Energy Types
Although the words power and energy are often used interchangeably in casual conversation,
it is very important to understand the difference ...
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Publisher Resources

ISBN: 9780750679589