HMC Electronics MDL Series BK Precision DC Electronic Load System Module User Manual
Page 38
38
Immediate Current Value
Set the current level via front panel or by sending SCPI command CURR <n>. If the load is in CC
mode, the new current level setting immediately changes the input at a rate determined by the
slew rate. If the load is not in CC mode, the current level setting will be saved for use until mode is
switched to CC mode.
Transient Current Level
A/B transient current level can be set on the front panel or by remote operation. The load can
continuously toggle between the two levels when transient operation is turned on.
Set Slew Rate
The current slew rate determines the rate at which the input current to a module changes to a new
programmed value. You can set the current level’s rise/fall slew rate on the front panel or by
remote operation. The programmed slew rate is immediately in effect to the triggered and
transient current level changes.
Slew Rate Measurement and Actual Transition time
Current slew rate is defined as the change in current over time. A programmable slew rate allows a
controlled transition from one load setting to another. The actual transition time is defined as the
time for the input to change from 10% to 90%, or 90% to 10% of the programmed current values.
The graph below illustrates slew rate measurements.
Figure 17 - Slew Rate Measurement
Documentation Provided By HMC Electronics
33 Springdale Ave. Canton, MA 02021
(800) 482-4440