Keysight Technologies B2900A Series

Keysight Technologies
Making Current-Voltage Measurement Using B2901A/02A/11A/12A - Demo Guide
B2900A Series Precision Source/Measure Unit
Measurement concept
– Source voltage to turn the LED on.
– Limit value feature prevent the instrument from
sourcing too much even if Source value is increased.
– Step voltages from start voltage to stop voltage with
making current measurement at each voltage step.
– Voltage steps are sourced from an internal voltage
source.
– Current measurements are made by an internal
current meter.
– The complicated measurement as above can be
congured and made easily with Intuitive Graphical
User Interface (GUI).
– Current-voltage curve can be seen easily by changing
View mode.
Setup
1. Connect the yellow banana plug to Ch 1 Low Force terminal.
2. Connect the red banana plug to Ch 1 High Force terminal.
3. Clip the LED cathode terminal with the black gold-plated
tweezers.
4. Clip the LED anode terminal with the red gold-plated tweezers.
b. Press and set Channel 1 Limit value to 100 mA.
c. Press Ch1 to turn on Channel 1 Output relay.
d. Press and rotate until Source value achieves 3 V.
You will see the measurement parameters turn orange, which
means they reach Limit value.
e. Rotate until Source value achieves 2 V and then press
to set Source value to 2 V.
1. Turn on the LED and measure LED current
1-1. Change View mode to Single View
a. Press repeatedly until Single View
for Channel 1 is shown in the display.
1-2. Source voltage to turn on the LED
a. Press to edit Channel 1 Source value, and then enter
2 V to set Source value to 2 V.
Procedure overview
1. Turn on the Light Emitting Diode (LED) and measure LED
current
2. Make current-voltage (I-V) sweep measurement to get LED
I-V characteristics
Objective
This demo shows how easily current-voltage character-
istics can be obtained with the B2900A Series through
the LED characteristics measurement.
Required Instrument and Accessory
You will see LED is turned on
because voltage is sourced by
the channel
Keysight B2901A/02A/11A/12A
Precision Source/Measure Unit
LED lampKeysight 11059A
Kelvin Probe Set
Current [A]
Voltage [V]
LED Current-Voltage Characteristics
V Source
I Meas
-
B2900 Series
0.20
0.15
0.10
0.05
0.00
0.50.0 1.0 1.5 2.0 2.5 3.0
High force
Ch 1
Low force
LED
A
2
1
4
3
Red
(11059A)
Yellow
(11059A)
Black
(11059A)
Red
(11059A)
Cathode
Anode

Keysight Technologies B2900A Series Specifications

General

Model	B2900A Series
Voltage Range	±210 V
Measurement Resolution	6.5 digits
Display	4.3-inch color LCD
Category	Precision Source/Measure Unit
Channels	1
Connectivity	LAN, USB, GPIB
Interfaces	USB, LAN, GPIB
Maximum Voltage	±210 V