Figure 2-6 Source Voltage Operation - Keysight U2722A User Manual

Input Protection Current line
50 mA
Source Voltage line
I
meter
Load line with
15 mA
R = 1 kΩ
= V
I
meter
= 15 V / 1 kΩ
= 15 mA
(A) Normal source voltage mode operation
Figure 2-6
In
load and it is measuring 15 mA. As long as the DUT load line intersects the source
voltage line, it will be in source voltage mode and the voltage will maintain at
15 V. However in
decreases to 100 Ω, the load line intersects the input protection current line. This
forces the U2722A/U2723A to go into source current mode. Since the input
protection current setting is set at 50 mA and the U2722A/U2723A cannot
operate out of the boundary, the voltage changes to 5 V instead.
Keysight U2722A/U2723A User's Guide
V
source
/ R
source
Source voltage operation
Figure 2-6 (A), the U2722A/U2723A is having a source voltage of 15 V to a 1 kΩ
Figure 2-6
50 mA
I
meter
15 V
(B) Crossover to source current mode operation
(B), it shows that when the resistance of the load
Operation and Features
Input Protection Current line
Source Voltage line
Load line with R = 100 Ω
5 V V
source
V = I * R
×
source meter
= 50 mA × 100 Ω
= 5 V
2
15 V
39