Set the load to constant resistance or constant
current mode to sink 0A.
Increase the input source from 0V to 48V; use
voltmeter 1 to measure the input voltage.
Increase the current limit of the input supply to
20A.
Using voltmeter 2 to measure the output voltage,
VOUT, vary the load current from 0A to 40A; VOUT must
remain within the load regulation specification. Use 100LFM or higher airflow
during this test.
Set the load current to 20A (50% rated load) and
vary the input source voltage from 24V to 65V; VOUT must remain
within the line regulation specification.
Decrease the load to 0A. Decrease the input
source voltage to 0V.