following equation to calculate the maximum slew rate limit to ensure smooth and linear up- and
down-programming performance.
Max slew rate (V⁄s) = (Current limit setting (A) – Load current (A))/(Load capacitance (F))
The current slew rate determines the rate at which the current changes to a new programmed setting.
This only applies to current settings while operating in current priority mode. When set to MAXimum,
INFinity, or to a very large value, the slew rate will be limited by the unit's listed programming speed
and bandwidth.
Front Panel Menu Reference
SCPI Command
Select
Output\Advanced\Slew
Then select Voltage or Current
Enter the voltage or current slew rate in the Slew Rate
field.
Check Max slew rate to program the fastest slew rate.
To set the voltage slew rate to 5 V/s
To set the current slew rate to 1 A/s
To set the fastest slew rate:
Set the Output Resistance
Output resistance programming is mainly used in battery testing applications and only applies in
voltage priority mode. It is used to emulate the internal resistance of a non-ideal voltage source such
as a battery. Values are programmed in ohms. Refer to the
table for the model-specific
resistance programming ranges.
Front Panel Menu Reference
SCPI Command
Select
Output\Advanced\Resistance
.
Specify an Output Resistance value. Then check the
Enable
box. Then press
Select
.
To select a resistance of 0.5 ohms:
To enable output resistance:
When units are connected in parallel, the maximum output resistance is reduced.
The programmable resistance for a single unit must be divided by the total number
of paralleled units.
Set the Output Bandwidth
Voltage compensation
Voltage compensation modes let you optimize output response time with capacitive loads. The
graphs in the Characteristics section illustrate the minimum ESR as a
function of DUT capacitance to allow for stable operation. The
graphs illustrate the
effect that the compensation modes have on the small-signal output impedance.
4 Using the DC Power System
98
Keysight N69100 Series Operating and Service Guide
