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SECTION 6
DC POWER SUPPLIES
GENERAL DESCRIPTION
6.1
The DC power supplies of the ReFlex Power™ system include models rated at
330W, 1kW, and 1.25kW. 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, series,
and series/parallel groups to extend their voltage, current, and power ratings.
The modules operate as part of a remotely controlled system. They utilize the
ReFlex Power™ Mainframe backplane for input power distribution and
control/communications interface. Through the ReFlex Power™ Controller
module, communications with the user host controller is established for
programming, readback, and configuration control. All connections to the user
load and discrete control signal interface are available on the module front
panels.
The modules utilize high-frequency power conversion for high efficiency to
maximize power density and realize light weight and small size. The 330W
module is housed in a single-width enclosure, 1.4" W x 6.75" H x 15" D, and is
only 4.5 lb. The 1kW and 1.25kW module are in a double-width enclosure, 2.8" W
x 6.75" H x 15" D, and is 9.0 lbs. Mounting within the Mainframe is facilitated with
chassis guides, backplane 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 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 control, and
M380056-01 Rev L
6-1
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