BK Precision MDL4U Series, Руководство пользователя

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Operations 45
In CC mode, transient testing can be used to check the stability of the source voltage. Transient functions have two
current levels (A level, B level), which should be in the same range (high range or low range). You can set the A/B level
delay time and the rise/fall slew rate via the mainframe keypad.
The slew rate determines the rate at which the level changes. Press the Trig key, and the load will continuously switch
between the A/B levels preset. Transient loads are usually used to test the power supply’s performance under continuous
changing load conditions. Figure 4.10 shows the current waveform of continuous transient operation mode.
Figure 4.10 Continuous Transient Operation
4.6.2 Pulse
The elctronic load generates a transient pulse of programmable width when pulse transient operation is in effect.
In pulse mode, you can set A/B level, A/B width, and A/B slew rate via the mainframe keypad. The electronic load will
automatically switch to A level after maintaining A width time. Then it will switch to B level. The electronic load will
not switch to A level again until the instrument receives the pulse signal. The figure 4.11 shows the current waveform
in pulse transient operation.
Figure 4.11 Pulse Transient Operation
4.6.3 Toggle
The lectronic load will switch between A level and B level when receiving a trigger signal after the transient operation is
enabled. The following picture shows the current waveform in toggle transient operation.