MPE DP SERIES II, Operating And Service Manual

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1.0 GENERAL INFORMATION
1.1 Description
This manual contains operation and maintenance instructions for Magna-Power Electronics' DP
Series, current fed power supplies. These power supplies are constant voltage/constant current
sources suitable for a wide range of applications.
1.2 Features
Magna-Power Electronics’ DP Series combines the best of dc power processing with
multiprocessor embedded control. A combination of high and medium frequency power
processing technologies improves response, shrinks package size, and reduces cost. DP Series
power supplies are current fed and are more tolerant to abusive loads than conventional
switching power supplies.
DP Series power supplies can operate as a voltage source or current source depending on the
control settings and load conditions. If the power supply is operating as a voltage source and the
load increases to a point beyond the current command setting, the power supply automatically
crosses over to current mode control and operates as a current source at that setting.
DP Series power supplies incorporate an optically isolated feedback system. The result is that all
user interface circuitry is referenced to earth ground -- not the negative terminal of the power
supply. This enables users to connect external circuitry without concern of ground loops or
voltage breakdown.
DP Series power supplies have fully isolated dual outputs that can be configured for independent
control or configured for series master/slave operation. The two power processing modules,
with its independent control circuits, can operate as voltage sources or current sources depending
on the control settings and load conditions.
When configured for master/slave operation, the master unit provides the positive output voltage
and the slave unit provides the negative output voltage. With A or D front panels, controls and
indicators for the master modules are on the top of the front panel and the controls and
indicators for the slave module are on the bottom of the front panel. A shorting output bus bar is
provided to produce a plus and minus output voltage with a common midpoint connection.
DP Series power supplies can be configured through the front panel for different applications.
The power supply can be programmed to have its control functions accessible from the front
panel, rear connector, or with RS232, optional IEEE-488, or optional Ethernet communications.
External RS485 to RS232 and external USB to RS232 converters are also available to echo
commands over the communications network. Communication options must be specified at time
of order. DP Series power supplies support a full set of SCPI commands. Drivers are available
for LabWindows/CVI, LabVIEW, and IVI.
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