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Application
Model 4200 DC Electronic Loads are designed for use within an emPowerTM-controlled S300
Modular Power System. These highly versatile electronic loads may
be used in any combination together with programmable DC power supplies
within the same 6-slot chassis. The use of such wide-capability power
modules yields more flexibility, less rack space and lower cost than
an assortment of individual DC electronic loads and programmable DC
supplies, each having a more limited voltage and current range.
Broad Operating Envelope
To cover the full spectrum of unit-under-test output voltages, the
Model 4200 DC Electronic Load operates at full power from 0.7 to 120
V. In the constant-current mode, the 4200 Load provides three ranges
in order to assure the necessary low-end resolution for both set and
measurement values.
Advanced Measurements
The 4200 Advanced Measurement Load provides the following library of
voltage, current and timing measurements, which can then be made available
simultaneously on each UUT output: Voltage, Current, Power, Overshoot,
Undershoot, Rise-Time, Fall-Time, Settling-Time, Hold-up Time, AC RMS,
AC+DC RMS, Trigger-In Time and Digital State & Time. Even waveforms
can be displayed on the system monitor to assists in diagnosing how
each UUT-output performs.
Paralleled Virtual DC Loads
To address higher power requirements, the 4200 Load can be paralleled
in software to respond as a single, larger load. All load functions,
including slew rate and short-circuit, are then internally synchronized
so that the unit-under-test sees a single "virtual" DC load
without the dynamic discontinuities associated with paralleling older
designs. Should the next application require a different load grouping,
reconfiguration is quickly achieved through reprogramming, along with
corresponding fixture adjustments, thus extending the system's flexibility
with a minimum number of electronic load modules.
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