Service and Maintenance 8
Constant Voltage (CV) Verifications
E364xA User’s and Service Guide 203
3 Set the electronic load current to half of the power supply
full rated current value, the electronic load to the
transient operation mode with the transient level to the
power supply full rated current value, and the output’s
full rated value at a 1 kHz rate with 50% duty cycle.
4 Set the oscilloscope for AC coupling, internal sync, and
lock on either the positive or negative load transient.
5 Adjust the oscilloscope to display transients as shown in
Figure 8- 5. Note that the pulse width (t2 – t1) of the
transients at 15 mV from the base line is no more than
50 ms for the output.
6 Repeat step 1 through step 5 for the other output.
Figure 8-5 Transient response time
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