Datasheet

3 www.bkprecision.com
Equipped with a high-performance microprocessor
in every mainframe and module, the MDL Series
p
rogrammable DC electronic load utilizes a
parallel architecture that provides a high
measurement speed. Additionally, a simultaneous
load on/off operation can be performed through
t
he front panel, analog control terminal, or remote
SCPI command. This configuration allows the
system to control modules synchronously and
increases productivity in testing.
The tools you need
High performance architecture
With removable module design, you can choose
suitable load modules to modify the system
a
ccording to your requirements. This design
allows for multiple channels and is ideal for
testing several units, especially power supplies
with multiple outputs. At the same time, all load
m
odules can be configured to work independently.
All load modules, including the high power 500
W and 600 W modules can fit in one slot. Unlike
competitor models that require two slots for high
power modules, the MDL Series offers a one-slot
form factor for all modules.
Modular design
The MDL Series can execute multiple test
sequences across all channels. Sequences can be
cascaded, and each step can be programmed
with upper and lower limit values. When applied
in automatic production testing, you can easily
judge whether the test parameters of your
devices are within the specification limits and
adjust your process according to the GO/NG
verdict.
Automatic test mode
The MDL series can operate at low voltages for applications such as fuel cell and solar cell testing.
Low Voltage Operation
The MDL Series mainframe offers all the latest
options to the user for remote communication.
Connect via GPIB, Ethernet, USB, or RS232 to
carry out data communication through SCPI and
USBTMC standard communication protocols to
control all your electronic load modules from a
PC.
Powerful communication interfaces
Transient operation enables the module to
periodically switch between two load levels.
A
power supply’s regulation and transient
characteristic can be evaluated by monitoring
the supply’s output voltage under varying
combinations of load levels, duty cycle, and slew
r
ate. The MDL Series can simulate these
conditions up to 25 kHz.
Transient operation
List mode
In constant current mode, users can control the
rate or slope of the change in current in a
transient response test. Set the slew rate to as
slow as 0.0001 A/
µs or as fast as 2.5 A/µs
depending on the module and selected current
range.
Adjustable slew rate
Not limited to just switching between two levels,
list mode lets you generate more complex
sequences of input changes with several different
levels. Up to 7 groups of list files can be saved
in the mainframe. Each list can contain up to 84
steps with a minimum width time of 20
µs per
step.
Modular Programmable DC Electronic Load
MDL Series
High Level
T
A
Slew Rate
Low Level
T
A
MDL200 MDL252 MDL302 MDL305 MDL400 MDL505 MDL600
1 V 1 V 1.4 V 4.5 V 1.5 V 5.4 V 1.8 V
Typical minimum operating voltage at full scale current: