Hi, I'm Tomo from Agilent Technologies.
Today I'd like to demonstrate hardware emulation of battery by using Agilent B2960A.
Battery changes its output characteristics greatly by its operating condition,
such as temperature or aging.
For evaluating the load circuit of a battery,
you need to check it against battery running under various condtions.
However it's not easy to realize such condtions in a lab room.
Instead of doing so, we propose using hardware emulator for the evaluation.
Emulator can realize various characteristics of the device
and is useful for evaluating the load circuit of the device.
In this video, I measure battery's current-voltage characteritics
and then emulate it by the emulator.
There are two batteries here.
One is new and the other is used.
As you can see, the used battery is almost dead.
This is Agilent B2960A.
It can emulate the batteries.
And this is another B2960A.
It's used for measuring current-voltage characteristics.
Firstly, I will measure current-voltage characteristics of these two batteries.
I will sweep current from 0 to 0.5 A and measure the voltage.
Now I connect the battery to the meausuring instrument.
In order to cancel voltage drop caused by wiring resistance,
I will employ four wire method.
First, I measure a new battery.
And then, I measure a used battery.
Here is the result.
There are two I-V curves on the graph.
Blue and Green line show the I-V curves of the new and used battery, respectively.
Compared with the new battery's voltage,
the used battery's voltage drops steeply as the load current increases.
Secondly, I will set up the emulator and measure its I-V characteristics.
The emulator can be set up very easily by using this tool.
I've already measured I-V characteristics of these two batteries.
So I can utilize their data as parameters for the emulator.
This time I use new battery's data.
Then I send these parameters to the emulator.
And then, start measuring.
In the same way, I can do the same with the used battery.
This is the result.
Lines show the measurement results of actual batteries,
and squares shows the measurement results of the emulators.
As you can see from this graph, they are exactly the same.
By using the emulator,
batteries' current-voltage characteristics can be emulated like this.
And with this setup,
you can realize the various behavior anywhere, anytime without having the actual device.
I've demonstrated emulation of battery.
By using emulator like Agilent B2960A,
different characteristics of devices
including batteries, solar cells, other components or circuits, under various operating conditions
can be realized by simply changing the parameters.
This function is useful for evaluating load circuit of the device.
If you'd like to have more information, you can visit our website.
Thank you.