Keysight Technologies B2900A Series Demo Manual

Keysight Technologies
Making Current-Voltage Measurement Using B2901A/02A/11A/12A - Demo Guide
B2900A Series Precision Source/Measure Unit
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
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
configured and made easily with Intuitive Graphical
User Interface (GUI).
– Current-voltage curve can be seen easily by changing
View mode.
LED Current-Voltage Characteristics
0.20
B2900 Series
High force
Ch 1
0.15 A
I
Meas
-
LED
0.10
V
Source
0.05
Low force
0.00
0.0 0.5 1.0 1.5
Voltage [V]
Objective
This demo shows how easily current-voltage character-
istics can be obtained with the B2900A Series through
the LED characteristics measurement.
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.
1. Turn on the LED and measure LED current
1-1. Change View mode to Single View
a. Press
for Channel 1 is shown in the display.
1-2. Source voltage to turn on the LED
a. Press
2 V to set Source value to 2 V.
2.0 2.5 3.0
Red Red
(11059A) (11059A)
2
4
3
1
Cathode
Yellow Black
(11059A) (11059A)
repeatedly until Single View
to edit Channel 1 Source value, and then enter
Required Instrument and Accessory
Keysight B2901A/02A/11A/12A
Precision Source/Measure Unit
b. Press and set Channel 1 Limit value to 100 mA.
c. Press Ch1 to turn on Channel 1 Output relay.
Anode
d. Press and rotate
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.
Keysight 11059A LED lamp
Kelvin Probe Set
You will see LED is turned on
because voltage is sourced by
the channel
until Source value achieves 3 V.