Tutorial 6
Connecting the Load
E3632A User’s Guide 161
Reverse current loading
An active load connected to the supply may actually deliver
a reverse current to the supply during a portion of its
operating cycle. An external source can not be allowed to
pump current into the supply without risking loss of
regulation and possible damage. These effects can be avoided
by preloading the output with a dummy load resistor. The
dummy load resistor should draw at least the same amount
of current from the supply as the active load may deliver to
the supply. The value of the current for the dummy load
plus the value of the current the load draws from the supply
must be less than the maximum current of the supply.
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