RIGOL
Chapter 2 Constant Voltage Test
2-2
DP1116A Performance Verification Manual
Preparations
When the power supply is in CV state, the main parameters to be tested include the
CV load regulation rate, CV linear regulation rate, CV ripple and noise, transient
response time, CV programming accuracy and readback accuracy.
Before performing the tests, select the appropriate voltage via the “voltage selector”
at the rear panel of the power supply according to the AC line voltage of the country
(220 will be selected in all the tests in this guide). Under normal temperature (about
25
℃
), make connections according to the figure below using the devices
recommended in “Recommended Test Devices”. During the test, please set the
voltage of the AC power supply according to the voltage setting selected.
Note:
During the test, if two multimeters or a multimeter and an oscilloscope need to be
connected to the power supply, please connect the two instruments to the (+)
terminal and (-) terminal of the output terminal of the power supply respectively
using separate connecting wires to avoid coupling effect. It is recommended to use
coaxial cable or shielded two-wire cable to avoid causing noise.
DP1116A
+
-
Electronic Load/
Resistive Load
+
-
AC Power
Supply
Multimeter/
Oscilloscope/
RMS Voltmeter
+
-
+
-
+
-
+
-
S+ + - S-
Figure 2-1 Test Connections (CV)
Short-circuit
Devices
