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SPS5000X Series User Manual
WWW.SIGLENT.COM 38
Pulsed or Peaked loads
The load is subject to current peaks or pulses, and the maximum current may
exceed the average current value. The power supplies only display the average
current value. For pulsed current loads, the actual current may be greater than
the displayed value. At this time, the current limit must be increased or the large
power supply must be turned off.
Reverse current regenerative load
When the power supplies are connected to regenerative loads (such as
transformers and inverters), the reverse current will be fed back to the power
supply and cannot be absorbed by the power supply. For such a load that can
generate reverse current, a resistor must be connected in parallel with the
power supply to avoid the inflow of reverse current. This method is only
applicable when the bleeder resistor is closed.
To calculate the resistance value (Rd) of the virtual resistor, first determine the
maximum reverse current Ir and determine the output voltage Eo.
Note
As the current decreases, the resistance of the output is
partially absorbed.
Ensure that the resistor used can withstand the power
capacity of the power supply or load.
Reverse current connection method
When the power supplies are connected to a load such as a battery, reverse
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