Additions to the Kepco Product Line
Kepco's 1000 watt instrument-grade digital power supplies, series ATE-DMG, are
linear low-noise power supplies designed to respond very quickly and precisely
to voltage and current setting instructions delivered interactively by the GPIB
(IEEE 488.2) or from a front panel keypad. When programmed from the bus, the
ATE-DMG power supplies respond to the SCPI (Standard Commands for Programmable
Instruments) common language for instruments used in an automatic test system.
ATE-DMG retain analog control capabilities in fast-programmable and
conventional (slow) control modes. This capability may be used for modulating a
voltage or current setting, or for establishing a fixed current with a quickly
responding voltage compliance. Analog control of voltage and current is via a
0-10V signal. Two internal uncommitted amplifiers are provided to allow users
to scale and, if necessary, change polarity of an available analog signal to
suit the 0-10V requirements of the power supply.
Series ATE-DMG are derived from Kepco¹s ATE-series precision analog power
supplies. A 24-key keypad augments the rotary voltage and
current controls and a 2-line 16-character LCD display replaces the meters.
The GPIB interface is built-in offering full talk-listen functionality on the
bus. The display shows both the settings and the actual voltage and current
readings which also can be read back on the bus, upon command.
FEATURES
Linear control for low noise: 100 microvolts typical in voltage mode; and
high precision: 0.0005% source effect {regulation} in voltage mode.
Voltage and current control with equivalent performance. A high speed mode
allows fast-recovery current-controlled stabilization into a varying load.
Over-voltage and over-current settings individually programmed by the
front panel keypad or remotely by the bus with a programmable delay to allow
for reactive-load transients.
Overvoltage crowbar to protect sensitive loads.
Non-volatile storage of programmed sequences or active settings. The
ATE-DMG contains 40 memory locations that store voltage, current, overvoltage,
overcurrent, time (how long the parameters are in effect) and the next address
in the sequence.
Full talk-listen control from a GPIB (IEEE 488-2) using SCPI language.
Master-slave series and parallel operation to provide increased
capability.
Local control: Front panel keypad entries are used for setting and
adjusting the output. The keypad can be used to execute commands directly or to
introduce a program to be run later or cycled. Calibration of the ATE-DMG is
done from the keypad using a password-protected, menu-driven procedure.
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Vol.9, No.2