Simulate A Battery With The 2281S - Tektronix Keithley 2281 Series Reference Manual

Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual

Simulate a battery with the 2281S

To simulate a battery with the 2281S using the front panel:
1. Select the battery simulator function in the startup screen.
2. Select Model in the soft key area 1.
3. Choose 1.mdl, since it is the model of a cellphone lithium-ion battery normally seen in the market
with a voltage range of 3.7 V to 4.2 V.
4. Press the MENU key.
5. Under Battery, select Settings.
6. Set Method to Dynamic. The Voc and SOC of the simulated battery change based on the
charging and discharging, like a real battery.
7. Set Full V and Empty V as the range of the simulated battery.
8. Return to the battery simulator home screen by pressing HOME on the front panel.
9. Select I-Limit in the soft key area 2. The current limit cannot be set higher than 6.1 A.
10. Return to the menu.
11. Under Battery, select Settings.
12. Set SOC to 80% and Voc to 4.1234 V. The value of Voc must be within the Empty V and Full V.
The value of SOC changes according to the value of Voc, and vice versa.
13. Return to the home screen. Set Capacity to 200 mAh in soft key area 2. This capacity is set to
accelerate the charging and discharging for better efficiency of the test.
14. Turn OUTPUT on in the front panel to start the battery simulation.
To simulate a battery using SCPI commands:
1. To select model 1, send the command:
:BATT:MOD:RCL 1
The working range of model 1 is 3.7 V to 4.2 V.
2. To set the simulation mode to dynamic, send the command:
:BATT:SIM:METH DY
3. To set the Voc at charging end (Full V) to 4.2 V, send the command:
:BATT:SIM:VOC:FULL 4.2
4. To set the Voc at discharging end (Empty V) to 3.8 V, send the command:
BATT:SIM:VOC:EMPT 3.8
5. To set the current limit to 3 A, send the command:
:BATT:SIM:CURR:LIM 3
6. To set SOC to 80%, send the command:
:BATT:SIM:SOC 80
The Voc value changes accordingly.
7. To set the battery capacity to 200 mAh, send the command:
:BATT:SIM:CAP:LIM 200mAh
077114601 / March 2019
Section 5: Application examples
5-17