GW Instek PSU Series - Internal Resistance

GETTING STARTED
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be potentially hazardous.
In addition, bleed resistors also allow for smoother
voltage regulation of the power supply as the
bleed resistor acts as a minimum voltage load.
The bleed resistance can be turned on or off using
the configuration settings.
Note
By default the bleed resistance is on. For battery
charging applications, be sure to turn the bleed
resistance off as the bleed resistor can discharge the
connected battery when the unit is off.
Internal Resistance
Background
On the PSU, the internal resistance of the power
supply can be user-defined in software. (Internal
Resistance Setting, see the Normal Function
Settings on page 101.) When the internal resistance
is set it can be seen as a resistance in series with
the positive output terminal. This allows the
power supply to simulate power sources that have
internal resistances such as lead acid batteries.
By default the internal resistance is 0Ω.
Internal
Resistance Range
Unit Model
Internal Resistance Range
PSU 6-200
0.000 ~ 0.030Ω
PSU 8-180
0.000 ~ 0.044Ω
PSU 12.5-120
0.000 ~ 0.104Ω
PSU 15-100
0.000 ~ 0.150Ω
PSU 20-76
0.000 ~ 0.263Ω
PSU 30-50
0.000 ~ 0.600Ω
PSU 40-38
0.000 ~ 1.053Ω
PSU 50-30
0.000 ~ 1.667Ω
PSU 60-25
0.000 ~ 2.400Ω
PSU 80-19
0.000 ~ 4.210Ω