SPS5000X series service manual
maximum value, and minimum value, then save them as screenshots.
Other instructions: In order to get more accurate results, grounding should be
tested with reference to the following methods.
Figure2- 2 Grounding method
Verify the output voltage overshoot of on/off
Test overview:
Output overshoot: The output voltage of the power supply will generate
voltage overshoot at the moment of switching. This is mainly related to
loop feedback stability. The linear power supply is used as a laboratory
power supply equipment, so it should not have overshoot strictly.
Test instrument: oscilloscope, ordinary probe
Specifications: no overshoot
Preset conditions: room temperature
Test environment: 220V power supply, the probe is grounded in the shortest
way.
Test methods and steps:
(a). Set the oscilloscope in single trigger, select the appropriate
trigger level, and use the oscilloscope's measurement
function.
(b) When the power input is turned on or off, test the voltage
waveform of the output of the power supply under no-loading
and full-loading conditions.
Verify transient response recovery time
Test overview:
The transient response of the regulated power supply can be divided into
