M580056-01 Rev L
7-1
SECTION 7
ACTIVE LOADS
7.1
GENERAL DESCRIPTION
The High Power Active Load (HPAL) and the Low Power Active Load (LPAL) of
the ReFlex Power™ system include models rated at 375 W and 750 W. They are
part of a modular family of power assets that integrate into the ReFlex Power™
Mainframe to provide a wide range of features, functionality, and extensive
configurability and adaptability. The modules could be set up to operate as
standalone assets, or in combinations of parallel groups to extend their current,
and power ratings.
The modules operate as part of a remotely controlled system. They utilize the
ReFlex Power™ Mainframe back plane for input power distribution and
control/communications interface. Through the ReFlex Power™ Controller
module, communications with the user host controller is established for
programming, read back, and configuration control. All connections to the user
load and analog control signal interface are available on the module front
panels.
The modules utilize FET active current sinks in modular form to get the
flexibility of the two power ranges. The 375 W module is housed in a triple-
width enclosure, and weighs 8.2 lb. The 750 W module is also triple-width, and
weighs 12.9 lb. Mounting within the Mainframe is facilitated with chassis
guides, back plane guide pins, and front panel captive fasteners for securing
the modules. The thermal design features integral, variable-speed fans so that
the cooling performance scales with the complement of modules in the
Mainframe, and their output loading, minimizing the audible noise and the
airflow requirements.
The unique features of the ReFlex Power™ system for reconfigurability and
extensibility are made possible through the use of the latest in controls
technology. An FPGA-based implementation uses VHDL digital feedback
control systems, embedded processor cores for firmware-based systems
Summary of Contents for Elgar ReFlex Power
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Page 89: ...AC Power Supplies ReFlex Power 4 4 M380056 01 Rev L Figure 4 1 ACPS Module Front Panel 875VA...
Page 120: ...ReFlex Power AC Power Supplies M380056 01 Rev L 4 35 Figure 4 11 Parallel Output Configuration...
Page 147: ...AC Power Supplies ReFlex Power 4 62 M380056 01 Rev L RST n...
Page 157: ...AC Power Supplies ReFlex Power 4 72 M380056 01 Rev L 26 Reset the unit RST n...
Page 274: ...ReFlex Power DC Power Supplies M380056 01 Rev L 6 71 18 Turn off the output RST n...
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Page 279: ...Active Loads ReFlex Power 7 4 M380056 01 Rev L Figure 7 1 LPAL 375W Front Panel...
Page 280: ...ReFlex Power Active Loads M380056 01 Rev L 7 5 Figure 7 2 HPAL 750W Front Panel...
Page 281: ...Active Loads ReFlex Power 7 6 M380056 01 Rev L Figure 7 3 Typical Active Load Rear Panel...
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