When the power supply is connected to a
regenerative load such as a transformer or
inverter, reverse current will feed back to the
power supply. The PSW power supply cannot
absorb reverse current. For loads that create
reverse current, connect a resistor in parallel
(dummy load) to the power supply to bypass
the reverse current.
To calculate the resistance for the dummy
resistor, R
D
, first determine the maximum
reverse current, I
R
, and determine what the
output voltage, E
O
, will be.
R
D
(Ω) ≤ E
O
(V) ÷ I
R
(A)
The current output will decrease by the amount of
current absorbed by the dummy resistor.
Ensure the resistor used can withstand the power
capacity of the power supply/load.
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