Rigol DL3000 Series, User Manual

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Chapter 2 Front Panel Operations RIGOL
DL3000 User’s Guide 2-53
OPP Test Function
OPP test principle (as shown in Figure 2-32):
When the OPP test starts, after the input voltage reaches Von, the load will delay for
a period, then the DUT starts to work according to the starting power. The power
increases with increasing with incrementing steps at a certain interval. Meanwhile,
the load will compare the detected voltage value with the protection voltage value of
the OPP test. If higher than the protection voltage value, the load proceeds to run
and increases with incrementing steps until reaching the protection voltage.
If OPP occurs to the DUT, judge whether the power under test is within the set
maximum and minimum power range. If yes, the load passes the OPP test. Digital
output of I/O interface on the rear panel is 0. If no, the load fails the test. Digital
output of I/O interface on the rear panel is 1.
If no OPP occurs to the DUT and the set protection time times out, the load
automatically stops sinking. The OPP test fails, and the test ends.
Figure 2-32 OPP Test Function
Tip
In the system setting menu, set the digital output to be "Disable", then the OPP
test status is associated with the digital output of I/O interface on the rear panel.
Operation Procedures:
1. Power on the instrument
Press the Power key
on the front panel to power on the instrument.
2. Connect the DUT and the channel input terminals of the load
Connect the DUT and the channel input terminals on the front panel of the load
t
V
Output Voltage of DUT
Load Power
P
t
V
Starting Power
Step Power
Step Delay End Power
t
V