Keithley 2302 Instruction Manual page 322

E-4 Applications Guide
Figure E-3
Simulated GSM phone current profile
NOTE
Channel #1 of the Model 2306 has a variable output impedance control that can be used to
simulate the impedance of a battery pack. The output impedance may be set from 0.00Ω (default
condition) to 1.00Ω in 0.01Ω increments from the front panel or over the GPIB bus.
Figure E-4
Electronic resistance of NiCd, NiMH, and
Li ion battery packs
NOTE
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Voltage
Current
The simulated GSM phone current profile contained in
current of 0.030A, a transmit current of 1.2A, and the pulse minimum voltage during
the transmit frame.
0.40
0.35
0.30
0.25
0.20
0.15
0.10
Figure E-4 shows electronic resistance for battery packs during a simulated GSM
phone pulsed discharge from full charge to 5.5 volts.
Pulse Minimum Voltage
-0.030 amps
-1.200 amps
Li ion
NiMH
NiCd
2.0 4.0 6.0
0.0
Time, hrs
Figure E-3 shows a standby
8.0 10.0