Specifications

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Simplify battery drain analysis
with analysis tools
To adequately specify the power
source for products that exhibit
pulsed and dynamic current loading
(such as digital cellular phone and
hard drives), you need to evaluate
both the peak and dc averages
current draws.
You could use an oscilloscope to
monitor a shunt or a current probe,
but this approach raises issues with
voltage drops, ground loops, common
mode noise, space, and calibration.
As a simpler and cheaper alternative,
use a power supply with built-in
measurement capabilities. The
Agilent 66300 mobile communications
dc sources store up to 4,096 data
points at sample intervals from 15 µs
to 31,200 s. Like an oscilloscope, they
acquire pre- and post-trigger buffer
data by crossing a user-set threshold.
The Agilent 14565B device character-
ization software is an automation
tool compatible with the 66319/21B
or D. These four sources have battery
emulation capabilities and work
with the software to accurately test
today’s communication devices as
well as your next generation designs
for cell phones, PDAs, Bluetooth™
enabled devices, and wireless LAN
access devices. The software features
dynamic current characterization
(Figure 1), data logging (Figure 2),
and CCDF measurements (Figure 3).
Figure 1. Waveform capture and analysis
using the Agilent 14565B software.
Figure 2. Data logging and analysis using the
Agilent 14565B software.
Tip
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Figure 3. Complementary cumulative distribution function (CCDF)
capture and analysis using the Agilent 14565B software.